James W. Walker, M.D.
Internal Medicine Physician · Oneonta, NY
James W. Walker, M.D. is an internal medicine physician with a practice address in Oneonta, New York, and NPI 1912964867, issued on Apr 26, 2006. Check the license (New York 150648, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- James W. Walker
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 150648 NY
Self-reported in NPPES; status is on the state search - Practice location
- 125 Main St, Oneonta, NY 13820
- Phone
- (607) 433-1790
- Enumerated
- Apr 26, 2006
- Record last updated
- Mar 28, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (607) 433-6520
- Medicaid ID
- 00906661 NY
- Medicare enrollment
- Enrolled (PECOS I20100219000072); accepts Medicare assignment
- Medical or professional school
- Medical College Of Georgia School Of Medicine, 1981
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 125 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Beth Beaudet, F.N.P.Family Nurse Practitioner1730131400
- Elizabeth Blasco, MDPediatrics Physician1255378535
- Monica Brane, M.D.Pediatrics Physician1770549255
- Douglas Cannon, M.D.Pediatrics Physician1912965039
- Andrea Close, PA-CPhysician Assistant1528664794
- Nancy Codd-Cook, F.N.P., P.H.D.Family Nurse Practitioner1548212210
Verify James W. 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 150648Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,930 Medicare Part D claims for 398 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 31 claims were for opioids.
Most prescribed
- Atorvastatin Calcium147 claims
- Amlodipine Besylate105 claims
- Lisinopril88 claims
- Omeprazole70 claims
- Rosuvastatin Calcium70 claims
- Levothyroxine Sodium65 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 MIPS final score for 2023 (Medicare payment program): 86.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Mary Imogene Bassett HospitalOneonta, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James W. Walker among 12,067 internal medicine physician records in New York
James W. Walker, M.D. is one of 12,067 internal medicine physician records with a practice address in New York. 79% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1981 · median 2002 among the 7,221 with a school on file
- Record last updated2008 · 61% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 internal medicine physician records list a practice address in Oneonta
They are 9 of the 508 NPPES records with a practice address in Oneonta, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Oneonta → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Todd Bitterman, MDOneonta, NY 138201033110218
- Sajjadali Chagani, MDOneonta, NY 138201770224156
- Todd Churchill, DOOneonta, NY 138201245231471
- Michael Levenstein, M.D.Oneonta, NY 138201992762827
- Deanna Palumbo, M.D.Oneonta, NY 138201700843687
- Stephen Rollo, M.D.Oneonta, NY 138201831258953
- Daniela Tovar Villada, MDOneonta, NY 138201982551701
- Gregory Xanthaky, MDOneonta, NY 138201518934397
Common questions
What is James W. Walker, M.D.'s NPI number?
James W. Walker, M.D.'s National Provider Identifier (NPI) is 1912964867, issued on Apr 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James W. Walker, M.D. located?
The NPPES record lists a practice address at 125 Main St, Oneonta, NY, 13820. Phone: (607) 433-1790. Providers update this record themselves, so call before visiting.
How can I verify James W. Walker, M.D.'s license?
NPPES lists New York license number 150648, 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 James W. Walker, M.D. prescribe under Medicare Part D?
In 2024, James W. Walker, M.D. had 1,930 Medicare Part D claims for 398 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is James W. Walker, M.D.'s MIPS final score?
The 2023 MIPS final score is 86.6 of 100. 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.