Dr. John Mark Ryan, MD
- Medicare services, 2024
- 682
- Medicare patients, 2024
- 237
- Part D claims, 2024
- 7,732
- Hospital affiliations
- 2
- Industry payments
- $49
- Practice address
- 375 Wampanoag Trl, Riverside, RI 02915
- Practice phone
- Call (401) 649-4010
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Brown Medicine
Riverside, Rhode Island
Find Dr. Ryan's professional email, personal email and mobile number
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Dr. John Mark Ryan is an internist in Riverside, Rhode Island
Dr. Ryan practices at Brown Medicine in Riverside, Rhode Island.
Dr. Ryan's NPI, 1841230968, was assigned on June 7, 2006. Dr. Ryan graduated from Warren Alpert Medical School of Brown University in 1984. Dr. Ryan holds Rhode Island license MD07097.
- NPI
- 1841230968NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3173507746
- NPI enumeration date
- June 7, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (401) 649-4010
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Mark Ryan practices at Brown Medicine in Riverside, Rhode Island
Dr. Ryan's primary practice is Brown Medicine, at 375 Wampanoag Trl, Riverside, RI 02915 in Providence County. The practice phone is (401) 649-4010.
- Brown Medicine375 Wampanoag Trl, Riverside, RI 02915 · Providence CountyPhone(401) 649-4010
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John Mark Ryan is affiliated with 6 sites of care and 3 medical groups
Dr. Ryan's primary practice is Brown Medicine in Riverside, Rhode Island. Dr. Ryan is also affiliated with The Miriam Hospital. The medical group on file is Brown Medicine. Dmand AI also links Dr. Ryan to 1 more hospital, 3 group practices and clinics and 2 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John Mark Ryan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ryan practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Brown Medicine | Available with a free account |
| +5 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Mark Ryan is one of 805 internists in Rhode Island
Internal medicine is Dr. Ryan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ryan is licensed in Rhode Island.
Specialties and state licenses
- Internal medicine, Rhode IslandPrimary
Internists near Dr. Ryan
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. John Mark Ryan billed Medicare for 682 services in 2024
CMS data shows 682 Medicare services from Dr. Ryan across 6 procedure codes in 2024, for 237 Medicare patients. Medicare paid $19,859 for them.
Dr. Ryan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6502024: 38141%
- Other services
- 2023: 2532024: 2613%
- Tests and treatments
- 2023: 152024: 40167%
Where Dr. Ryan's Medicare services took place, 2024
- In an office66798%
- In a facility152%
Dr. Ryan compared with the Rhode Island median for internists, 2024
- Dr. Ryan
- Rhode Island median
- Medicare services
- 682vs 34299% above
- Medicare patients
- 237vs 14563% above
- Part D claims
- 7,112vs 28425.0 times
Medians across 772 internists in Rhode Island with Dmand AI profiles that report each measure.
Dr. Ryan's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ryan and other internists in Rhode Island.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Mark Ryan treated 237 Medicare patients in 2024, average age 78
CMS counts 237 Medicare patients who saw Dr. Ryan in 2024. The largest group is 75 to 84, with 102 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 5% are also on Medicaid. Their average risk score is 1.11, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ryan's median patient age at 71, with 50% women.
Dr. Ryan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Ryan's Medicare patients by sex, 2024
- Women11850%
- Men11950%
Chronic conditions among Dr. Ryan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis49%
- Asthma26%
- Diabetes25%
- Atrial fibrillation22%
- Anxiety20%
- Cancer20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ryan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women50%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Mark Ryan wrote 7,732 Medicare Part D claims in 2024
In 2024, Dr. Ryan wrote 7,732 Medicare Part D claims for 532 patients. 89% of them were for generic drugs. CMS names the drug for 7,112 of them, across 117 drugs with 11 or more claims each, at $480,993 in total drug cost. In 2023, CMS named 7,880 claims across 126 drugs.
Dr. Ryan's Part D claims by kind of drug, 2024
- Generic6,886 claims89%
- Brand-name813 claims11%
- Other33 claims0%
Dr. Ryan's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Ryan's Part D claims, 2024
- Opioids1%112 of 7,732 claims
- Antibiotics1%113 of 7,732 claims
- Antipsychotics, patients 65 and over0%25 of 7,732 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 7,8802024: 7,11210%
Drugs named by CMS: 117 in 2024, 126 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. John Mark Ryan takes part in Medicare
Dr. Ryan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John Mark Ryan received $49 in industry payments from 2018 to 2024
CMS Open Payments shows 2 general payments to Dr. Ryan from 2 drug and device companies from 2018 to 2024. Food and beverage make up the largest share, 100% of the total. Actelion Pharmaceuticals US, Inc. paid the most, $34.
General payments to Dr. Ryan by program year, 2018 to 2024
Companies that paid Dr. Ryan the most, 2018 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Mark Ryan graduated from Warren Alpert Medical School of Brown University
Dr. Ryan graduated from Warren Alpert Medical School of Brown University in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Mark Ryan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John Mark Ryan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. John Mark Ryan's NPI number?
Dr. John Mark Ryan's NPI number is 1841230968. It was assigned on June 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Mark Ryan?
Dr. John Mark Ryan is an internist in Riverside, Rhode Island. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. John Mark Ryan practice?
Dr. Ryan practices at 375 Wampanoag Trl, Riverside, RI 02915. Dr. Ryan's primary practice is Brown Medicine in Riverside, Rhode Island. Dmand AI also links Dr. Ryan to 1 hospital, 3 group practices and clinics and 2 medical groups.
What is Dr. John Mark Ryan's office phone number?
The practice phone on file for Dr. Ryan is (401) 649-4010.
What is Dr. John Mark Ryan's medical license number?
Dr. Ryan holds Rhode Island license MD07097.
Which hospitals is Dr. John Mark Ryan affiliated with?
Dr. Ryan is affiliated with The Miriam Hospital. Dmand AI links Dr. Ryan to 1 more hospital.
What medical group is Dr. John Mark Ryan part of?
Dr. Ryan is linked to Brown Medicine. Dmand AI links Dr. Ryan to 2 more medical groups.
Does Dr. John Mark Ryan accept Medicare?
Yes. CMS data shows Dr. Ryan billed Medicare for 682 services in 2024, and Dr. Ryan accepts Medicare assignment.
How many Medicare patients does Dr. John Mark Ryan see?
CMS counts 237 Medicare patients who saw Dr. Ryan in 2024, with an average age of 78.
What services does Dr. John Mark Ryan bill to Medicare?
In 2024, Dr. Ryan's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and medicare service (G2211).
Show 4 more questionsShow fewer questions
Where did Dr. John Mark Ryan go to medical school?
Dr. Ryan graduated from Warren Alpert Medical School of Brown University in 1984.
What drugs does Dr. John Mark Ryan prescribe most?
In 2024 Medicare Part D data, Dr. Ryan's most prescribed drugs by claims were Atorvastatin Calcium, Lisinopril and Omeprazole.
Has Dr. John Mark Ryan received payments from drug or device companies?
CMS Open Payments shows $49 in general payments to Dr. Ryan from 2 companies from 2018 to 2024. The largest total came from Actelion Pharmaceuticals US, Inc.
How long has Dr. John Mark Ryan been practicing?
Dr. Ryan graduated from medical school in 1984, 42 years ago.
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