Dr. Jonathan Field, MD
Internal Medicine (Internal Medicine Physician)
- Medicare participating
At a glance
- Medical school
- Morehouse School of Medicine (1996)
- Years since graduation
- 30
- In the NPI registry since
- 2005
- Medicare patients seen, 2024
- 163
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
- 1996Medical school: Morehouse School of Medicine
- 2005Registered 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
-
Internal Medicine Physician primary
NY license 219010 -
Allergy & Immunology Physician
NY license 219010 -
Pediatrics Physician
NY license 219010
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Medical groups
- Optum Medical Care PC (1,010 clinicians)
- Optum Urgent Care PLLC (68 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
- 163
- Services billed
- 2,638
- Patients’ average age
- 73
| Service | Times | Patients |
|---|---|---|
| Test for allergy using allergenic extract | 841 | 24 |
| Professional service for preparation and provision of 1 or more antigens | 665 | 47 |
| Professional service for multiple injections of allergen | 294 | 48 |
| Established patient office or other outpatient visit, 20-29 minutes | 123 | 66 |
| Established patient office or other outpatient visit, 30-39 minutes | 113 | 65 |
| Test for allergy using allergenic extract injected into skin | 86 | 11 |
| Injection of drug or substance under skin or into muscle | 64 | 12 |
| Professional service for single injection of allergen | 51 | 12 |
| New patient office or other outpatient visit, 45-59 minutes | 32 | 32 |
| Established patient office or other outpatient visit, 10-19 minutes | 20 | 19 |
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 |
|---|---|
| Montelukast Sodium Other prescribers in New York, NY | 65 |
| Azelastine Hcl Other prescribers in New York, NY | 44 |
| Albuterol Sulfate Hfa (albuterol sulfate) Other prescribers in New York, NY | 33 |
| Ipratropium Bromide Other prescribers in New York, NY | 28 |
| Azithromycin Other prescribers in New York, NY | 20 |
| Dupixent Syringe (dupilumab) Other prescribers in New York, NY | 20 |
| Fluticasone Propionate Other prescribers in New York, NY | 18 |
| Prednisone Other prescribers in New York, NY | 16 |
| Levocetirizine Dihydrochloride Other prescribers in New York, NY | 16 |
| Nortrel (norethindrone-ethin. estradiol) | 15 |
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, 19 companies reported 176 payments worth $20,659 in total to this clinician.
| Ionis Pharmaceuticals, Inc. | $12,395 |
|---|---|
| Csl Behring | $4,926 |
| Genzyme Corporation | $1,234 |
| AstraZeneca Pharmaceuticals LP | $541 |
| Biocryst US Sales Co., LLC | $325 |
| GlaxoSmithKline, LLC. | $230 |
| Pfizer Inc. | $213 |
| Sanofi-aventis U.S. LLC | $172 |
| Compensation for services other than consulting (speaking, faculty) | $13,739 |
|---|---|
| Food and Beverage | $4,586 |
| Travel and Lodging | $2,163 |
| Education | $172 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Ionis Pharmaceuticals, Inc. Sep 29, 2025 | Compensation for services other than consulting (speaking, faculty) DAWNZERA · PULMONOLOGY & IMMUNOLOGY | $2,960 |
| Ionis Pharmaceuticals, Inc. Oct 7, 2025 | Compensation for services other than consulting (speaking, faculty) DAWNZERA · PULMONOLOGY & IMMUNOLOGY | $2,220 |
| Ionis Pharmaceuticals, Inc. Nov 14, 2025 | Compensation for services other than consulting (speaking, faculty) DAWNZERA · PULMONOLOGY & IMMUNOLOGY | $2,220 |
| Ionis Pharmaceuticals, Inc. Sep 30, 2025 | Compensation for services other than consulting (speaking, faculty) DAWNZERA · PULMONOLOGY & IMMUNOLOGY | $2,200 |
| Csl Behring Dec 11, 2025 | Compensation for services other than consulting (speaking, faculty) Andembry · Hematology | $1,537 |
| Ionis Pharmaceuticals, Inc. Sep 25, 2025 | Travel and Lodging DAWNZERA · PULMONOLOGY & IMMUNOLOGY · travel to BURLINGTON, MA · in-kind | $1,242 |
| Csl Behring Dec 12, 2025 | Compensation for services other than consulting (speaking, faculty) Andembry · Hematology | $946 |
| Csl Behring Dec 12, 2025 | Compensation for services other than consulting (speaking, faculty) Andembry · Hematology | $946 |
| Csl Behring Nov 20, 2025 | Compensation for services other than consulting (speaking, faculty) Andembry · Hematology | $710 |
| Ionis Pharmaceuticals, Inc. Sep 19, 2025 | Travel and Lodging DAWNZERA · PULMONOLOGY & IMMUNOLOGY · travel to CARLSBAD, CA · in-kind | $272 |
All 16 payments other than meals, newest first
| Company | What it was for | Amount |
|---|---|---|
| Csl Behring Dec 12, 2025 | Compensation for services other than consulting (speaking, faculty) Andembry · Hematology | $946 |
| Csl Behring Dec 12, 2025 | Compensation for services other than consulting (speaking, faculty) Andembry · Hematology | $946 |
| Csl Behring Dec 11, 2025 | Compensation for services other than consulting (speaking, faculty) Andembry · Hematology | $1,537 |
| Csl Behring Nov 20, 2025 | Compensation for services other than consulting (speaking, faculty) Andembry · Hematology | $710 |
| Ionis Pharmaceuticals, Inc. Nov 14, 2025 | Compensation for services other than consulting (speaking, faculty) DAWNZERA · PULMONOLOGY & IMMUNOLOGY | $2,220 |
| Sanofi-aventis U.S. LLC Oct 28, 2025 | Education DUPIXENT · Immunology · in-kind | $99.99 |
| Ionis Pharmaceuticals, Inc. Oct 7, 2025 | Compensation for services other than consulting (speaking, faculty) DAWNZERA · PULMONOLOGY & IMMUNOLOGY | $2,220 |
| Ionis Pharmaceuticals, Inc. Sep 30, 2025 | Compensation for services other than consulting (speaking, faculty) DAWNZERA · PULMONOLOGY & IMMUNOLOGY | $2,200 |
| Ionis Pharmaceuticals, Inc. Sep 29, 2025 | Compensation for services other than consulting (speaking, faculty) DAWNZERA · PULMONOLOGY & IMMUNOLOGY | $2,960 |
| Ionis Pharmaceuticals, Inc. Sep 25, 2025 | Travel and Lodging DAWNZERA · PULMONOLOGY & IMMUNOLOGY · travel to BURLINGTON, MA · in-kind | $1,242 |
| Ionis Pharmaceuticals, Inc. Sep 20, 2025 | Travel and Lodging DAWNZERA · PULMONOLOGY & IMMUNOLOGY · travel to CARLSBAD, CA · in-kind | $272 |
| Ionis Pharmaceuticals, Inc. Sep 20, 2025 | Travel and Lodging DAWNZERA · PULMONOLOGY & IMMUNOLOGY · travel to CARLSBAD, CA · in-kind | $95.67 |
| Ionis Pharmaceuticals, Inc. Sep 19, 2025 | Travel and Lodging DAWNZERA · PULMONOLOGY & IMMUNOLOGY · travel to CARLSBAD, CA · in-kind | $272 |
| Ionis Pharmaceuticals, Inc. Sep 19, 2025 | Travel and Lodging DAWNZERA · PULMONOLOGY & IMMUNOLOGY · travel to CARLSBAD, CA · in-kind | $164 |
| Ionis Pharmaceuticals, Inc. Sep 19, 2025 | Travel and Lodging DAWNZERA · PULMONOLOGY & IMMUNOLOGY · travel to CARLSBAD, CA · in-kind | $118 |
| Sanofi-aventis U.S. LLC Sep 19, 2025 | Education DUPIXENT · Immunology · in-kind | $72.00 |
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 1 industry-funded study in 2025, from 1 company. The companies reported $3,320 in research payments for these studies, mostly to the institutions running them.
- The CHRONICLE Study is a multi center,non interventional,prospective cohort study of adults with severe asthma who do not achieve control with high-dose ICS therapy with additional controllers and or require systemic …
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.