Mary Ryan, MD
Gastroenterology Physician · Madison, WI
Mary Ryan, MD is a gastroenterology physician with a practice address in Madison, Wisconsin, and NPI 1174262133, issued on May 29, 2022. Check the license (Wisconsin 85804-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Mary Ryan
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 85804-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 600 Highland Ave, Madison, WI 53792
- Phone
- (608) 263-6400
- Enumerated
- May 29, 2022
- Record last updated
- Jul 1, 2025
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 340 in Wisconsin → Look up another NPI →
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Verify Mary Ryan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 85804-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% fewer Medicare Part D claims than the average gastroenterology physician in 2024
743 Medicare Part D claims for 104 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Gabapentin50 claims
- Atorvastatin Calcium42 claims
- Amlodipine Besylate32 claims
- Carvedilol29 claims
- Losartan Potassium23 claims
- Xarelto21 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.
Mary Ryan among 340 gastroenterology physician records in Wisconsin
Mary Ryan, MD is one of 340 gastroenterology physician records with a practice address in Wisconsin. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 98% of them.
- NPI issued2022 · 98% of these records are older, 1% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 70% of these records are
- Record last updated2025 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Wisconsin
There are 340 gastroenterology physician records in Wisconsin.
All 340 in Wisconsin → Every provider in Madison → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Jihad Aljabban, MD, MMSCMadison, WI 537921699304808
- Kerstin Austin, M.D.Madison, WI 537921497013023
- Mark Benson, M.D.Madison, WI 537921114950987
- Omar Calderon, MDMadison, WI 537921295364081
- Matthew Ewy, MD, RD, CNSCMadison, WI 537921487045696
- Lucas FassMadison, WI 537921427613793
- Annette Glasser, CNPMadison, WI 537921851352363
- Luis Lomeli, MDMadison, WI 537921851686281
Common questions
What is Mary Ryan, MD's NPI number?
Mary Ryan, MD's National Provider Identifier (NPI) is 1174262133, issued on May 29, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Mary Ryan, MD located?
The NPPES record lists a practice address at 600 Highland Ave, Madison, WI, 53792. Phone: (608) 263-6400. Providers update this record themselves, so call before visiting.
How can I verify Mary Ryan, MD's license?
NPPES lists Wisconsin license number 85804-20, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mary Ryan, MD prescribe under Medicare Part D?
In 2024, Mary Ryan, MD had 743 Medicare Part D claims for 104 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.