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Dr. Ashwin Kishtagari, M.D.

Hematology (Hematology (Internal Medicine) Physician)

  • Medicare participating

At a glance

Years since graduation
15
In the NPI registry since
2014
Medicare patients seen, 2024
114

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. What an NPI is

Education and training

  • 2014Registered with an NPI (national billing number; not a license date)

Medicare’s Care Compare data doesn’t list this clinician’s medical school. 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 (Internal Medicine) Physician primary
    TN license 63376
  • Internal Medicine Physician
    TN license 63376
  • Medical Oncology Physician
    TN license 63376
  • Student in an Organized Health Care Education/Training Program

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Hematology per capita by county →

Where they work

Hospitals

Medical groups

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
114
Services billed
367
Patients’ average age
73
Most frequent Medicare services, 2023
ServiceTimesPatients
Established patient office or other outpatient visit, 30-39 minutes21289
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes10335
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes7121
Established patient office or other outpatient visit, 40-54 minutes4834
New patient office or other outpatient visit, 60-74 minutes4242
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes2828
Hospital discharge day management, more than 30 minutes1717

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

Most prescribed drugs, Medicare Part D 2024
DrugPrescriptions
Vonjo (pacritinib citrate)40
Jakafi (ruxolitinib phosphate)32
Ayvakit (avapritinib)23
Hydroxyurea
Other prescribers in Nashville, TN
17
Valacyclovir (valacyclovir hcl)
Other prescribers in Nashville, TN
14
Venclexta (venetoclax)12

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, 9 companies reported 30 payments worth $22,880 in total to this clinician.

By type
Consulting Fee$12,133
Compensation for services other than consulting (speaking, faculty)$6,150
Honoraria$2,041
Travel and Lodging$1,599
Food and Beverage$958

What the payments were for

Largest payments other than meals
DateCompanyWhat it was forAmount
Aug 22, 2025Sobi, Inc
Aug 22, 2025
Compensation for services other than consulting (speaking, faculty)
Vonjo · Hematology/Oncology
$5,115
Oct 28, 2025Geron Corporation
Oct 28, 2025
Consulting Fee
IMETELSTAT · HEMATOLOGY
$4,260
Aug 7, 2025Syndax Pharmaceuticals, Inc.
Aug 7, 2025
Consulting Fee
REVUFORJ · HEMATOLOGY-ONCOLOGY
$2,385
Aug 27, 2025Novartis Pharmaceuticals Corporation
Aug 27, 2025
Consulting Fee
Fabhalta · Immunology
$2,063
Mar 5, 2025Blueprint Medicines Corporation
Mar 5, 2025
Honoraria$2,041
Nov 25, 2025Sobi, Inc
Nov 25, 2025
Consulting Fee
Vonjo · Hematology/Oncology
$1,925
Sep 26, 2025Siemens Medical Solutions USA, Inc.
Sep 26, 2025
Compensation for services other than consulting (speaking, faculty)$1,035
Oct 28, 2025Geron Corporation
Oct 28, 2025
Travel and Lodging
IMETELSTAT · HEMATOLOGY · travel to DALLAS, TX
$959
Jul 17, 2025Takeda Pharmaceuticals U.S.A., Inc.
Jul 17, 2025
Consulting Fee$850
Sep 22, 2025Daiichi Sankyo Inc.
Sep 22, 2025
Consulting Fee
Vanflyta · ONCOLOGY
$650
All 15 payments other than meals, newest first
All payments other than meals
DateCompanyWhat it was forAmount
Nov 25, 2025Sobi, Inc
Nov 25, 2025
Consulting Fee
Vonjo · Hematology/Oncology
$1,925
Oct 28, 2025Geron Corporation
Oct 28, 2025
Consulting Fee
IMETELSTAT · HEMATOLOGY
$4,260
Oct 28, 2025Geron Corporation
Oct 28, 2025
Travel and Lodging
IMETELSTAT · HEMATOLOGY · travel to DALLAS, TX
$959
Oct 28, 2025Geron Corporation
Oct 28, 2025
Travel and Lodging
IMETELSTAT · HEMATOLOGY · travel to DALLAS, TX
$130
Oct 28, 2025Geron Corporation
Oct 28, 2025
Travel and Lodging
IMETELSTAT · HEMATOLOGY · travel to DALLAS, TX
$39.36
Oct 25, 2025Geron Corporation
Oct 25, 2025
Travel and Lodging
IMETELSTAT · HEMATOLOGY · travel to DALLAS, TX
$219
Sep 26, 2025Siemens Medical Solutions USA, Inc.
Sep 26, 2025
Compensation for services other than consulting (speaking, faculty)$1,035
Sep 22, 2025Daiichi Sankyo Inc.
Sep 22, 2025
Consulting Fee
Vanflyta · ONCOLOGY
$650
Aug 27, 2025Novartis Pharmaceuticals Corporation
Aug 27, 2025
Consulting Fee
Fabhalta · Immunology
$2,063
Aug 22, 2025Sobi, Inc
Aug 22, 2025
Compensation for services other than consulting (speaking, faculty)
Vonjo · Hematology/Oncology
$5,115
Aug 7, 2025Syndax Pharmaceuticals, Inc.
Aug 7, 2025
Consulting Fee
REVUFORJ · HEMATOLOGY-ONCOLOGY
$2,385
Jul 17, 2025Takeda Pharmaceuticals U.S.A., Inc.
Jul 17, 2025
Consulting Fee$850
May 22, 2025Sobi, Inc
May 22, 2025
Travel and Lodging
Vonjo · Hematology/Oncology · travel to Detroit, MI
$238
Mar 5, 2025Blueprint Medicines Corporation
Mar 5, 2025
Honoraria$2,041
Mar 5, 2025Blueprint Medicines Corporation
Mar 5, 2025
Travel and Lodging
travel to Nashville, TN · in-kind
$13.71

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.

Who received the most in Tennessee →

Industry-funded research

Named as a principal investigator on 5 industry-funded studies in 2025, from 4 companies. The companies reported $255,185 in research payments for these studies, mostly to the institutions running them.

  • A Study of Elritercept to Treat Anemia in Adults With Very Low, Low, or Intermediate Risk Myelodysplastic Syndromes (MDS) Who Need Regular Blood Transfusions
    Takeda Pharmaceuticals U.S.A., Inc.
  • A Phase 1b, Open Label, Multi-center, Dose Optimization and Dose Expansion Study to Assess the Safety and Efficacy of DFV890 in Adult Patients With Myeloid Diseases
    Novartis Pharmaceuticals Corporation
  • A Study of Oral Nuvisertib (TP-3654) in Patients With Myelofibrosis
    Sumitomo Pharma America, Inc. · Recruiting · NCT04176198
  • A Study to Evaluate the Safety, Tolerability of INCB160058 in Participants With Myeloproliferative Neoplasms
    Incyte Corporation
  • This study is being conducted to assess the Safety, Tolerability, and Pharmacokinetics of INCB160058 in Participants With Myeloproliferative Neoplasms.
    Incyte Corporation

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.

Other Hematology clinicians in Nashville

Sources

NPI registry (CMS NPPES, November 2026; record last updated March 24, 2022), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1437565652. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.