James William Walter, M.D.
Gastroenterology Physician · Philadelphia, PA
James William Walter, M.D. is a gastroenterology physician with a practice address in Philadelphia, Pennsylvania, and NPI 1083903314, issued on Apr 7, 2011. Check the license (Pennsylvania MD463927, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- James William Walter
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- MD463927 PA
Self-reported in NPPES; status is on the state search - Practice location
- 833 Chestnut St, Philadelphia, PA 19107
- Phone
- (215) 955-6180
- Enumerated
- Apr 7, 2011
- Record last updated
- Jun 7, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180524001694); accepts Medicare assignment
- Medical or professional school
- Creighton University School Of Medicine, 2011
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,049 in Pennsylvania → Look up another NPI →
Also registered at 833 Chestnut St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Christine Arenson, M.D.Family Medicine Physician1316970403
Verify James William Walter in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD463927Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% fewer Medicare Part D claims than the average gastroenterology physician in 2024
538 Medicare Part D claims for 179 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.
Most prescribed
- Omeprazole124 claims
- Mesalamine42 claims
- Peg 3350-Electrolyte38 claims
- Linzess30 claims
- Stelara26 claims
- Dicyclomine Hcl21 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.
Industry payments in 2024: $7,225.63
45 payments; by number, the most common kind was food and beverage; the largest payer was Eli Lilly and Company. 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.
Bills Medicare through one group practice
- Einstein Practice Plan IncPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James William Walter among 1,049 gastroenterology physician records in Pennsylvania
James William Walter, M.D. is one of 1,049 gastroenterology physician records with a practice address in Pennsylvania. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 73% of them.
- NPI issued2011 · 73% of these records are older, 24% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2011 · median 2003 among the 769 with a school on file
- Record last updated2018 · 63% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Pennsylvania
There are 1,049 gastroenterology physician records in Pennsylvania.
All 1,049 in Pennsylvania → Every provider in Philadelphia → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Jeffrey Abrams, M.D.Phila, PA 191071174582076
- Cuckoo Choudhary, M.D.Phila, PA 191071871552711
- Robert Coben, M.D.Phila, PA 191071891754891
- Sidney Cohen, M.D.Phila, PA 191071821057720
- Mitchell Conn, M.D.Phila, PA 191071922067917
- Anthony Dimarino, M.D.Phila, PA 191071780643775
- Michael Dimarino, M.D.Phila, PA 191071619936515
- Steven Greenfield, M.D.Phila, PA 191071326007576
Common questions
What is James William Walter, M.D.'s NPI number?
James William Walter, M.D.'s National Provider Identifier (NPI) is 1083903314, issued on Apr 7, 2011. An NPI identifies a provider in billing; it is not a license.
Where is James William Walter, M.D. located?
The NPPES record lists a practice address at 833 Chestnut St, Philadelphia, PA, 19107. Phone: (215) 955-6180. Providers update this record themselves, so call before visiting.
How can I verify James William Walter, M.D.'s license?
NPPES lists Pennsylvania license number MD463927, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James William Walter, M.D. prescribe under Medicare Part D?
In 2024, James William Walter, M.D. had 538 Medicare Part D claims for 179 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.