Physician Profile
Unclaimed ProfileAbout RYAN
Based in Providence, RI, John Mark Ryan, M.D. is listed in the NPI registry under internal medicine. John graduated from Warren Alpert Medical School of Brown University in 1984.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What is Dr. Ryan's specialty?
Dr. Ryan is an internal medicine in Providence, RI. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where can I find Dr. Ryan?
Dr. Ryan is listed at 245 CHAPMAN ST, Providence, RI 02905. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Ryan?
The number on file is (401) 444-4741. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Ryan's NPI number?
Dr. Ryan's National Provider Identifier is 1841230968. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Ryan's medical education?
Dr. Ryan attended Warren Alpert Medical School of Brown University, graduating in 1984. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Ryan been practising?
Dr. Ryan has 42 years experience. Calculated from a graduation year of 1984, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Ryan known for?
According to Medicare billing data, Dr. Ryan provides treatments such as admn sarscov2 vacc 1 dose, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Ryan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ryan. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (401) 444-4741
- Email not available
Practice Locations
245 CHAPMAN ST
Providence, RI 02905
Procedures Most Often Billed to Medicare
682 services · 545 patients · 7 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Admn sarscov2 vacc 1 dose | Treatment | 90480 |
40 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
331 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
166 |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
68 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
35 |
| Administration of influenza virus vaccine | Billing code | G0008 |
27 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
15 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internal medicines at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 31 related providers in 4 groups
Other internal medicines in Providence 7
Same specialty, same city.
Trained at Warren Alpert Medical School of Brown University 8
Other providers in the same specialty who trained at the same institution.
Class of 1984 at Warren Alpert Medical School of Brown University 8
Providers who graduated from the same medical school in the same year.
Also performs Admn sarscov2 vacc 1 dose 8
Providers in RI who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.