Jonathan Dreyer, MD
Family Medicine Physician · Warwick, RI
Jonathan Dreyer, MD is a family medicine physician with a practice address in Warwick, Rhode Island, and NPI 1528520178, issued on Apr 3, 2019. Check the license (Rhode Island MD18490, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Jonathan Dreyer
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD18490 RI
Self-reported in NPPES; status is on the state search - Practice location
- 455 Toll Gate RD, Warwick, RI 02886
- Phone
- (401) 737-7010
- Enumerated
- Apr 3, 2019
- Record last updated
- Nov 3, 2022
- Fax
- (401) 736-1975
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 475 in Rhode Island → Look up another NPI →
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Verify Jonathan Dreyer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
Search for license MD18490Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average family medicine physician in 2024
1,394 Medicare Part D claims for 109 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 23 claims were for opioids.
Most prescribed
- Atorvastatin Calcium115 claims
- Amlodipine Besylate62 claims
- Gabapentin52 claims
- Lisinopril50 claims
- Omeprazole49 claims
- Losartan Potassium47 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Jonathan Dreyer among 475 family medicine physician records in Rhode Island
Jonathan Dreyer, MD is one of 475 family medicine physician records with a practice address in Rhode Island. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 73% of them.
- NPI issued2019 · 73% of these records are older, 24% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2022 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
92 family medicine physician records list a practice address in Warwick
They are 92 of the 2,776 NPPES records with a practice address in Warwick, and 475 family medicine physician records in Rhode Island.
All 475 in Rhode Island → Every provider in Warwick → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Keith Callahan, M.D.Warwick, RI 028861629063219
- Pierre Caron, MDWarwick, RI 028861871588947
- Susan Clemens, MDWarwick, RI 028861972566396
- David Danzer, M.D.Warwick, RI 028861770528275
- Michael Felder, DOWarwick, RI 028861871530592
- Douglas Foreman, DOWarwick, RI 028861710983366
- John Horan, DOWarwick, RI 028861679567531
- Polly Leonard, D.O.Warwick, RI 028861801893367
Common questions
What is Jonathan Dreyer, MD's NPI number?
Jonathan Dreyer, MD's National Provider Identifier (NPI) is 1528520178, issued on Apr 3, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan Dreyer, MD located?
The NPPES record lists a practice address at 455 Toll Gate RD, Warwick, RI, 02886. Phone: (401) 737-7010. Providers update this record themselves, so call before visiting.
How can I verify Jonathan Dreyer, MD's license?
NPPES lists Rhode Island license number MD18490, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jonathan Dreyer, MD prescribe under Medicare Part D?
In 2024, Jonathan Dreyer, MD had 1,394 Medicare Part D claims for 109 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.