John Mark Ryan, M.D.
Internal Medicine Physician · Providence, RI
John Mark Ryan, M.D. is an internal medicine physician with a practice address in Providence, Rhode Island, and NPI 1841230968, issued on Jun 7, 2006. Check the license (Rhode Island MD07097, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- John Mark Ryan
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD07097 RI
Self-reported in NPPES; status is on the state search - Practice location
- 245 Chapman St, Providence, RI 02905
- Phone
- (401) 444-4741
- Enumerated
- Jun 7, 2006
- Record last updated
- Aug 14, 2025
- Fax
- (401) 444-4445
- Medicare enrollment
- Enrolled (PECOS I20040614000707); accepts Medicare assignment
- Medical or professional school
- Warren Alpert Medical School Of Brown University, 1984
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,033 in Rhode Island → Look up another NPI →
Also registered at 245 Chapman St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Albanese, PHARMD, BCGPPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1265133052
- Gavriel Cohn, MDInternal Medicine Physician1295428357
- Dawn Feret, RPHPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1750177671
- Niharika Mehta, MDInternal Medicine Physician1558394833
- Erika Sgambato, LICSWClinical Social Worker1336406875
- Dawn Simoes, NURSE PRACTITIONERFamily Nurse Practitioner1083033187
Verify John Mark Ryan 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 MD07097Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average internal medicine physician in 2024
7,732 Medicare Part D claims for 532 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 112 claims were for opioids.
Most prescribed
- Atorvastatin Calcium608 claims
- Lisinopril406 claims
- Omeprazole343 claims
- Losartan Potassium319 claims
- Amlodipine Besylate226 claims
- Levothyroxine Sodium184 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.
Industry payments in 2024: $34.44
1 payment: food and beverage; the largest payer was Actelion Pharmaceuticals US, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Brown MedicineRiverside, RI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Mark Ryan among 1,033 internal medicine physician records in Rhode Island
John Mark Ryan, M.D. is one of 1,033 internal medicine physician records with a practice address in Rhode Island. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 62% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1984 · median 2006 among the 590 with a school on file
- Record last updated2025 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
511 internal medicine physician records list a practice address in Providence
They are 511 of the 9,647 NPPES records with a practice address in Providence, and 1,033 internal medicine physician records in Rhode Island.
All 1,033 in Rhode Island → Every provider in Providence → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Lynn Bowlby, MDProvidence, RI 029051588611123
- Elizabeth De Jesus, M.D.Cranston, RI 029051134206360
- Rinchen-Tzo Emgushov, MDProvidence, RI 029051760477962
- Jonathan Gates, MDProvidence, RI 029051922060466
- Amy Goldfarb, MDProvidence, RI 029051629063847
- Levis Guzman, MDProvidence, RI 029051154363695
- Carla Martin, MDProvidence, RI 029051376528794
- Niharika Mehta, MDProvidence, RI 029051558394833
Common questions
What is John Mark Ryan, M.D.'s NPI number?
John Mark Ryan, M.D.'s National Provider Identifier (NPI) is 1841230968, issued on Jun 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Mark Ryan, M.D. located?
The NPPES record lists a practice address at 245 Chapman St, Providence, RI, 02905. Phone: (401) 444-4741. Providers update this record themselves, so call before visiting.
How can I verify John Mark Ryan, M.D.'s license?
NPPES lists Rhode Island license number MD07097, 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 John Mark Ryan, M.D. prescribe under Medicare Part D?
In 2024, John Mark Ryan, M.D. had 7,732 Medicare Part D claims for 532 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.