Dr. Jonathan A. Abbas, MD
Hematology & Oncology (Hematology & Oncology Physician)
- Medicare participating
At a glance
- Medical school
- Medical College of Georgia School of Medicine (2007)
- Years since graduation
- 19
- In the NPI registry since
- 2007
- Medicare patients seen, 2024
- 111
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2007Medical school: Medical College of Georgia School of Medicine
- 2007Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Hematology & Oncology Physician primary
TN license 61706
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Ascension Saint Thomas Hospital Nashville, TN
Medical groups
- Tennessee Oncology PLLC (358 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 111
- Services billed
- 3,148
- Patients’ average age
- 74
| Service | Times | Patients |
|---|---|---|
| Blood test, comprehensive group of blood chemicals | 520 | 51 |
| Phosphate level | 509 | 50 |
| Lactate dehydrogenase (enzyme) level | 506 | 50 |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 505 | 51 |
| Established patient office or other outpatient visit, 40-54 minutes | 368 | 51 |
| Magnesium level | 340 | 41 |
| Insertion of needle into vein for collection of blood sample | 249 | 42 |
| Uric acid level, blood | 217 | 30 |
| Bilirubin level, direct | 198 | 28 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 158 | 35 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Valacyclovir (valacyclovir hcl) Other prescribers in Nashville, TN | 84 |
| Voriconazole | 68 |
| Venclexta (venetoclax) | 54 |
| Levofloxacin Other prescribers in Nashville, TN | 50 |
| Jakafi (ruxolitinib phosphate) | 28 |
| Revlimid (lenalidomide) | 26 |
| Prochlorperazine Maleate Other prescribers in Nashville, TN | 22 |
| Prednisone Other prescribers in Nashville, TN | 21 |
| Allopurinol Other prescribers in Nashville, TN | 20 |
| Onureg (azacitidine) | 19 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 30 companies reported 212 payments worth $176,174 in total to this clinician.
| AbbVie Inc. | $33,667 |
|---|---|
| Syndax Pharmaceuticals, Inc. | $28,647 |
| Incyte Corporation | $23,183 |
| GlaxoSmithKline, LLC. | $18,751 |
| Genmab U.S., Inc. | $12,813 |
| E.r. Squibb & Sons, L.l.c. | $12,173 |
| Sobi, Inc | $12,170 |
| Amgen Inc. | $11,372 |
| Compensation for services other than consulting (speaking, faculty) | $139,085 |
|---|---|
| Consulting Fee | $20,386 |
| Travel and Lodging | $7,935 |
| Food and Beverage | $6,159 |
| Honoraria | $2,610 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Amgen Inc. Oct 13, 2025 | Consulting Fee BLINCYTO · Oncology | $10,622 |
| Syndax Pharmaceuticals, Inc. Sep 18, 2025 | Compensation for services other than consulting (speaking, faculty) REVUFORJ · HEMATOLOGY-ONCOLOGY | $7,200 |
| Genzyme Corporation Oct 14, 2025 | Compensation for services other than consulting (speaking, faculty) SARCLISA · Oncology | $6,920 |
| Incyte Corporation Jun 18, 2025 | Compensation for services other than consulting (speaking, faculty) Jakafi · Hematology/Oncology | $6,165 |
| Incyte Corporation Aug 19, 2025 | Compensation for services other than consulting (speaking, faculty) Jakafi · Hematology/Oncology | $5,480 |
| Sobi, Inc Sep 26, 2025 | Compensation for services other than consulting (speaking, faculty) | $5,005 |
| Genmab U.S., Inc. Sep 24, 2025 | Compensation for services other than consulting (speaking, faculty) Epkinly · Oncology | $4,900 |
| AbbVie Inc. Apr 29, 2025 | Compensation for services other than consulting (speaking, faculty) | $4,900 |
| AbbVie Inc. May 2, 2025 | Compensation for services other than consulting (speaking, faculty) VENCLEXTA · ONCOLOGY | $4,900 |
| AbbVie Inc. Jul 10, 2025 | Compensation for services other than consulting (speaking, faculty) EPKINLY · ONCOLOGY | $4,900 |
All 93 payments other than meals, newest first
| Company | What it was for | Amount |
|---|---|---|
| Incyte Corporation Dec 19, 2025 | Compensation for services other than consulting (speaking, faculty) Jakafi · Hematology/Oncology | $2,740 |
| Syndax Pharmaceuticals, Inc. Dec 18, 2025 | Compensation for services other than consulting (speaking, faculty) REVUFORJ · HEMATOLOGY-ONCOLOGY | $1,200 |
| GlaxoSmithKline, LLC. Dec 17, 2025 | Compensation for services other than consulting (speaking, faculty) OJJAARA · ONCOLOGY | $2,175 |
| Incyte Corporation Dec 10, 2025 | Travel and Lodging Jakafi · Hematology/Oncology · travel to Nashville, TN | $15.40 |
| Syndax Pharmaceuticals, Inc. Dec 5, 2025 | Compensation for services other than consulting (speaking, faculty) REVUFORJ · HEMATOLOGY-ONCOLOGY | $3,600 |
| Syndax Pharmaceuticals, Inc. Dec 5, 2025 | Compensation for services other than consulting (speaking, faculty) REVUFORJ · HEMATOLOGY-ONCOLOGY | $2,000 |
| Syndax Pharmaceuticals, Inc. Dec 5, 2025 | Compensation for services other than consulting (speaking, faculty) REVUFORJ · HEMATOLOGY-ONCOLOGY | $2,000 |
| Syndax Pharmaceuticals, Inc. Dec 5, 2025 | Compensation for services other than consulting (speaking, faculty) REVUFORJ · HEMATOLOGY-ONCOLOGY | $2,000 |
| E.r. Squibb & Sons, L.l.c. Dec 3, 2025 | Compensation for services other than consulting (speaking, faculty) REBLOZYL · Hematology | $3,623 |
| Incyte Corporation Dec 3, 2025 | Compensation for services other than consulting (speaking, faculty) Monjuvi · Oncology | $1,370 |
| GlaxoSmithKline, LLC. Nov 20, 2025 | Travel and Lodging OJJAARA · ONCOLOGY · travel to Murfreesboro, TN | $56.00 |
| GlaxoSmithKline, LLC. Nov 13, 2025 | Compensation for services other than consulting (speaking, faculty) OJJAARA · ONCOLOGY | $2,900 |
| Novartis Pharmaceuticals Corporation Nov 10, 2025 | Consulting Fee SCEMBLIX · Oncology | $138 |
| AbbVie Inc. Oct 16, 2025 | Compensation for services other than consulting (speaking, faculty) | $4,900 |
| Sobi, Inc Oct 15, 2025 | Travel and Lodging Vonjo · Hematology/Oncology · travel to Henrico, VA | $591 |
| Genzyme Corporation Oct 14, 2025 | Compensation for services other than consulting (speaking, faculty) SARCLISA · Oncology | $6,920 |
| Amgen Inc. Oct 13, 2025 | Consulting Fee BLINCYTO · Oncology | $10,622 |
| AbbVie Inc. Oct 2, 2025 | Compensation for services other than consulting (speaking, faculty) EPKINLY · ONCOLOGY | $4,900 |
| E.r. Squibb & Sons, L.l.c. Oct 1, 2025 | Compensation for services other than consulting (speaking, faculty) REBLOZYL · Hematology | $3,623 |
| Genzyme Corporation Oct 1, 2025 | Compensation for services other than consulting (speaking, faculty) SARCLISA · Oncology | $2,966 |
| Sobi, Inc Sep 26, 2025 | Compensation for services other than consulting (speaking, faculty) | $5,005 |
| Sobi, Inc Sep 26, 2025 | Travel and Lodging travel to Concord, NC | $1,108 |
| Sobi, Inc Sep 26, 2025 | Travel and Lodging travel to Concord, NC | $55.00 |
| Genmab U.S., Inc. Sep 24, 2025 | Compensation for services other than consulting (speaking, faculty) Epkinly · Oncology | $4,900 |
| AbbVie Inc. Sep 23, 2025 | Travel and Lodging travel to EVANSVILLE, IN · in-kind | $224 |
| Syndax Pharmaceuticals, Inc. Sep 18, 2025 | Compensation for services other than consulting (speaking, faculty) REVUFORJ · HEMATOLOGY-ONCOLOGY | $7,200 |
| AbbVie Inc. Sep 16, 2025 | Travel and Lodging EPKINLY · ONCOLOGY · travel to FORT WORTH, TX · in-kind | $717 |
| AbbVie Inc. Sep 16, 2025 | Travel and Lodging EPKINLY · ONCOLOGY · travel to FORT WORTH, TX · in-kind | $211 |
| AbbVie Inc. Sep 16, 2025 | Travel and Lodging EPKINLY · ONCOLOGY · travel to FORT WORTH, TX · in-kind | $41.00 |
| AbbVie Inc. Sep 16, 2025 | Travel and Lodging EPKINLY · ONCOLOGY · travel to FORT WORTH, TX · in-kind | $14.00 |
| Genmab U.S., Inc. Sep 12, 2025 | Travel and Lodging Epkinly · Oncology · travel to San Antonio, TX · in-kind | $377 |
| Genmab U.S., Inc. Sep 12, 2025 | Travel and Lodging Epkinly · Oncology · travel to Nashville, TN | $41.00 |
| Genmab U.S., Inc. Sep 12, 2025 | Travel and Lodging Epkinly · Oncology · travel to nASHVILLE, TN | $14.00 |
| Syndax Pharmaceuticals, Inc. Sep 9, 2025 | Travel and Lodging REVUFORJ · HEMATOLOGY-ONCOLOGY · travel to FALLS CHURCH, VA · in-kind | $433 |
| Syndax Pharmaceuticals, Inc. Sep 9, 2025 | Travel and Lodging REVUFORJ · HEMATOLOGY-ONCOLOGY · travel to FALLS CHURCH, VA · in-kind | $359 |
| Incyte Corporation Aug 27, 2025 | Compensation for services other than consulting (speaking, faculty) Monjuvi · Oncology | $2,055 |
| Incyte Corporation Aug 19, 2025 | Compensation for services other than consulting (speaking, faculty) Jakafi · Hematology/Oncology | $5,480 |
| Genmab U.S., Inc. Aug 11, 2025 | Consulting Fee Epkinly · Oncology | $405 |
| AbbVie Inc. Aug 8, 2025 | Compensation for services other than consulting (speaking, faculty) | $3,500 |
| Syndax Pharmaceuticals, Inc. Aug 7, 2025 | Compensation for services other than consulting (speaking, faculty) REVUFORJ · HEMATOLOGY-ONCOLOGY | $2,000 |
| Incyte Corporation Aug 7, 2025 | Travel and Lodging Jakafi · Hematology/Oncology · travel to Houston, TX | $470 |
| Incyte Corporation Aug 7, 2025 | Travel and Lodging Jakafi · Hematology/Oncology · travel to Houston, TX | $194 |
| Incyte Corporation Aug 7, 2025 | Travel and Lodging Jakafi · Hematology/Oncology · travel to Houston, TX | $41.00 |
| Incyte Corporation Aug 7, 2025 | Travel and Lodging Jakafi · Hematology/Oncology · travel to Houston, TX | $11.20 |
| Pfizer Inc. Aug 4, 2025 | Compensation for services other than consulting (speaking, faculty) | $600 |
| Sobi, Inc Jul 31, 2025 | Compensation for services other than consulting (speaking, faculty) Vonjo · Hematology/Oncology | $3,850 |
| Incyte Corporation Jul 31, 2025 | Compensation for services other than consulting (speaking, faculty) Monjuvi · Oncology | $1,028 |
| Genmab U.S., Inc. Jul 16, 2025 | Compensation for services other than consulting (speaking, faculty) Epkinly · Oncology | $3,000 |
| AstraZeneca Pharmaceuticals LP Jul 15, 2025 | Travel and Lodging CALQUENCE · Oncology · travel to Nashville, TN | $23.99 |
| AbbVie Inc. Jul 10, 2025 | Compensation for services other than consulting (speaking, faculty) EPKINLY · ONCOLOGY | $4,900 |
| AstraZeneca Pharmaceuticals LP Jun 26, 2025 | Compensation for services other than consulting (speaking, faculty) CALQUENCE · Oncology Company’s descriptionSpeaker Fee | $3,350 |
| AbbVie Inc. Jun 26, 2025 | Travel and Lodging EPKINLY · ONCOLOGY · travel to CHESTNUT HILL, MA · in-kind | $758 |
| AbbVie Inc. Jun 26, 2025 | Travel and Lodging EPKINLY · ONCOLOGY · travel to CHESTNUT HILL, MA · in-kind | $174 |
| AbbVie Inc. Jun 26, 2025 | Travel and Lodging EPKINLY · ONCOLOGY · travel to CHESTNUT HILL, MA · in-kind | $152 |
| Genmab U.S., Inc. Jun 19, 2025 | Compensation for services other than consulting (speaking, faculty) Epkinly · Oncology | $1,800 |
| Incyte Corporation Jun 18, 2025 | Compensation for services other than consulting (speaking, faculty) Jakafi · Hematology/Oncology | $6,165 |
| GlaxoSmithKline, LLC. Jun 17, 2025 | Compensation for services other than consulting (speaking, faculty) OJJAARA · ONCOLOGY | $2,900 |
| GlaxoSmithKline, LLC. Jun 13, 2025 | Travel and Lodging OJJAARA · ONCOLOGY · travel to Huntsville, AL | $161 |
| Incyte Corporation Jun 12, 2025 | Compensation for services other than consulting (speaking, faculty) Jakafi · Hematology/Oncology | $2,055 |
| AbbVie Inc. Jun 3, 2025 | Compensation for services other than consulting (speaking, faculty) VENCLEXTA · ONCOLOGY | $1,050 |
| Stemline Therapeutics Inc. Jun 2, 2025 | Consulting Fee ELZONRIS · Oncology | $2,170 |
| Pfizer Inc. Jun 2, 2025 | Compensation for services other than consulting (speaking, faculty) | $1,200 |
| Syndax Pharmaceuticals, Inc. May 29, 2025 | Compensation for services other than consulting (speaking, faculty) REVUFORJ · HEMATOLOGY-ONCOLOGY | $1,500 |
| Incyte Corporation May 17, 2025 | Travel and Lodging Jakafi · Hematology/Oncology · travel to Chicago, IL | $403 |
| Incyte Corporation May 17, 2025 | Travel and Lodging Jakafi · Hematology/Oncology · travel to Chicago, IL | $255 |
| Incyte Corporation May 17, 2025 | Travel and Lodging Jakafi · Hematology/Oncology · travel to Chicago, IL | $40.00 |
| Incyte Corporation May 17, 2025 | Travel and Lodging Jakafi · Hematology/Oncology · travel to Chicago, IL | $14.00 |
| Sobi, Inc May 15, 2025 | Consulting Fee Vonjo · Hematology/Oncology | $1,155 |
| E.r. Squibb & Sons, L.l.c. May 15, 2025 | Consulting Fee | $518 |
| AstraZeneca Pharmaceuticals LP May 7, 2025 | Compensation for services other than consulting (speaking, faculty) CALQUENCE · Oncology Company’s descriptionSpeaker Fee | $250 |
| AstraZeneca Pharmaceuticals LP May 7, 2025 | Compensation for services other than consulting (speaking, faculty) CALQUENCE · Oncology Company’s descriptionSpeaker Fee | $250 |
| AbbVie Inc. May 2, 2025 | Compensation for services other than consulting (speaking, faculty) VENCLEXTA · ONCOLOGY | $4,900 |
| AbbVie Inc. Apr 29, 2025 | Compensation for services other than consulting (speaking, faculty) | $4,900 |
| Pharmaessentia USA Corporation Apr 16, 2025 | Honoraria BESREMI · Oncology | $2,610 |
| AbbVie Inc. Apr 15, 2025 | Travel and Lodging VENCLEXTA · ONCOLOGY · travel to LOUISVILLE, KY · in-kind | $256 |
| AbbVie Inc. Apr 15, 2025 | Travel and Lodging VENCLEXTA · ONCOLOGY · travel to LOUISVILLE, KY · in-kind | $221 |
| AbbVie Inc. Apr 15, 2025 | Travel and Lodging VENCLEXTA · ONCOLOGY · travel to LOUISVILLE, KY · in-kind | $38.16 |
| Genmab U.S., Inc. Apr 14, 2025 | Compensation for services other than consulting (speaking, faculty) Epkinly · Oncology | $1,800 |
| Syndax Pharmaceuticals, Inc. Apr 11, 2025 | Compensation for services other than consulting (speaking, faculty) | $1,500 |
| AbbVie Inc. Apr 9, 2025 | Travel and Lodging travel to HOUSTON, TX · in-kind | $378 |
| E.r. Squibb & Sons, L.l.c. Apr 7, 2025 | Compensation for services other than consulting (speaking, faculty) REBLOZYL · Hematology | $3,623 |
| GlaxoSmithKline, LLC. Apr 7, 2025 | Compensation for services other than consulting (speaking, faculty) OJJAARA · ONCOLOGY | $2,900 |
| GlaxoSmithKline, LLC. Apr 7, 2025 | Consulting Fee OJJAARA · ONCOLOGY | $2,538 |
| Incyte Corporation Apr 7, 2025 | Compensation for services other than consulting (speaking, faculty) Jakafi · Hematology/Oncology | $343 |
| GlaxoSmithKline, LLC. Mar 28, 2025 | Travel and Lodging OJJAARA · ONCOLOGY · travel to Nashville, TN | $39.00 |
| Syndax Pharmaceuticals, Inc. Feb 27, 2025 | Compensation for services other than consulting (speaking, faculty) REVUFORJ · HEMATOLOGY-ONCOLOGY | $2,700 |
| Syndax Pharmaceuticals, Inc. Feb 27, 2025 | Travel and Lodging REVUFORJ · HEMATOLOGY-ONCOLOGY · travel to NASHVILLE, TN | $49.00 |
| Amgen Inc. Feb 21, 2025 | Compensation for services other than consulting (speaking, faculty) BLINCYTO · Oncology | $750 |
| E.r. Squibb & Sons, L.l.c. Feb 10, 2025 | Consulting Fee | $741 |
| GlaxoSmithKline, LLC. Jan 23, 2025 | Compensation for services other than consulting (speaking, faculty) OJJAARA · ONCOLOGY | $3,263 |
| AbbVie Inc. Jan 17, 2025 | Consulting Fee VENCLEXTA · ONCOLOGY | $600 |
| Syndax Pharmaceuticals, Inc. Jan 9, 2025 | Consulting Fee REVUFORJ · HEMATOLOGY-ONCOLOGY | $1,500 |
| GlaxoSmithKline, LLC. Jan 7, 2025 | Compensation for services other than consulting (speaking, faculty) OJJAARA · ONCOLOGY | $1,452 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.
Industry-funded research
Named as a principal investigator on 3 industry-funded studies in 2025, from 3 companies. The companies reported $252,435 in research payments for these studies, mostly to the institutions running them.
- A phase 2 open-label study to evaluate momelotinib in combination with
GlaxoSmithKline, LLC. - STML-401-0423 - a phase ii multicenter open -label trial of tagraxofusp (tag) in combination with venetoclax and azacitidine (ven/aza) in adults with previously untreated CD123+ acute myeloid leukemia (aml) who are i…
Stemline Therapeutics Inc. - A Modular Phase I II Open Label Multi Centre Study to Evaluate the Safety Tolerability Pharmacokinetics Immunogenicity and Preliminary Efficacy of AZD4512 Monotherapy or in Combination with Anticancer Agents in Partic…
AstraZeneca Pharmaceuticals LP
From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.