Robert Walker, M.D.
Gastroenterology Physician · Middletown, NY
Robert Walker, M.D. is a gastroenterology physician with a practice address in Middletown, New York, and NPI 1396727129, issued on Nov 17, 2005. Check the license (New York 199345, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Robert Walker
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 199345 NY
66475 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 95 Crystal Run RD, Middletown, NY 10941
- Phone
- (845) 703-6999
- Enumerated
- Nov 17, 2005
- Record last updated
- Nov 14, 2024
- Fax
- (845) 703-6297
- Medicaid ID
- 01575497 NY
- Medicare enrollment
- Enrolled (PECOS I20230825002456); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 1989
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,797 in New York → Look up another NPI →
Also registered at 95 Crystal Run RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ralph Anderson, M.D.Obstetrics & Gynecology Physician1144301268
- Myriam Babcock, P.T.Physical Therapist1689694127
- Shane Baker, DPMPodiatrist1063792828
- Mark Bele, DORheumatology Physician1982605614
- Suleman Bhana, M.D.Rheumatology Physician1225232556
Verify Robert Walker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 199345Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% fewer Medicare Part D claims than the average gastroenterology physician in 2024
510 Medicare Part D claims for 303 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Pantoprazole Sodium82 claims
- Famotidine71 claims
- Omeprazole70 claims
- Gavilyte-G68 claims
- Peg-3350 And Electrolytes27 claims
- Golytely26 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 91.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $27.57
2 payments; by number, the most common kind was food and beverage; the largest payer was Smith+Nephew, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 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.
2 hospitals and group practices
- Yuma Regional Medical CenterYuma, AZ · Acute Care Hospitals2 of 5 stars
- Honorhealth AmbulatoryPhoenix, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Robert Walker among 1,797 gastroenterology physician records in New York
Robert Walker, M.D. is one of 1,797 gastroenterology physician records with a practice address in New York. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 85% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1989 · median 1999 among the 1,378 with a school on file
- Record last updated2024 · 65% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in New York
There are 1,797 gastroenterology physician records in New York.
All 1,797 in New York → Every provider in Middletown → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Rosa Choung, MDMiddletown, NY 109411215938766
- Edward Croen, MDMiddletown, NY 109411780677708
- Alex Gershenhorn, MDMiddletown, NY 109411437257797
- Akash Goel, MDMiddletown, NY 109411659630192
- Parantap Gupta, MDMiddletown, NY 109411780888354
- Jessica Harris, MDMiddletown, NY 109411609262393
- Ira Nierenberg, M.D.Middletown, NY 109411972517332
- Alexander Pop, M.D.Middletown, NY 109411922458249
Common questions
What is Robert Walker, M.D.'s NPI number?
Robert Walker, M.D.'s National Provider Identifier (NPI) is 1396727129, issued on Nov 17, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Robert Walker, M.D. located?
The NPPES record lists a practice address at 95 Crystal Run RD, Middletown, NY, 10941. Phone: (845) 703-6999. Providers update this record themselves, so call before visiting.
How can I verify Robert Walker, M.D.'s license?
NPPES lists New York license number 199345, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert Walker, M.D. prescribe under Medicare Part D?
In 2024, Robert Walker, M.D. had 510 Medicare Part D claims for 303 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Robert Walker, M.D.'s MIPS final score?
The 2023 MIPS final score is 91.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.