Robert M. Weiss
Gastroenterology Physician · Holyoke, MA
Robert M. Weiss is a gastroenterology physician with a practice address in Holyoke, Massachusetts, and NPI 1861575953, issued on Oct 23, 2006. Check the license (Massachusetts 57667, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Robert M. Weiss
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 57667 MA
Self-reported in NPPES; status is on the state search - Practice location
- 10 Hospital Dr, Holyoke, MA 01040
- Phone
- (413) 534-1132
- Enumerated
- Oct 23, 2006
- Record last updated
- Feb 11, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicaid ID
- 3020690 MA
- Medicare enrollment
- Enrolled (PECOS I20050415000337); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 1985
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 686 in Massachusetts → Look up another NPI →
Also registered at 10 Hospital Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Robert M. Weiss in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 57667Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.7 times the Medicare Part D claims of the average gastroenterology physician in 2024
2,156 Medicare Part D claims for 399 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Omeprazole895 claims
- Dicyclomine Hcl174 claims
- Famotidine108 claims
- Pantoprazole Sodium102 claims
- Ursodiol91 claims
- Balsalazide Disodium57 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): 91.3 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
- Pioneer Valley Gastroenterology Associates PCHolyoke, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert M. Weiss among 686 gastroenterology physician records in Massachusetts
Robert M. Weiss is one of 686 gastroenterology physician records with a practice address in Massachusetts. 80% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 49% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1985 · median 2004 among the 491 with a school on file
- Record last updated2011 · 66% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Massachusetts
There are 686 gastroenterology physician records in Massachusetts.
All 686 in Massachusetts → Every provider in Holyoke → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Bernard Clifford, M.D.Holyoke, MA 010401972561843
- Gabriel Melki, MDHolyoke, MA 010401194247213
- Mary Norris, MDHolyoke, MA 010401881694362
- Mark Hirschkorn, M.D.Chicopee, MA 010201518923713
- Heidi Kolek, MDChicopee, MA 010201881667517
- Shelley Rahn, MDChicopee, MA 010201356441638
- Steven Samuels, M.D.Chicopee, MA 010201942267810
- Jaya Agrawal, M.D.Florence, MA 010621316979842
Common questions
What is Robert M. Weiss's NPI number?
Robert M. Weiss's National Provider Identifier (NPI) is 1861575953, issued on Oct 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert M. Weiss located?
The NPPES record lists a practice address at 10 Hospital Dr, Holyoke, MA, 01040. Phone: (413) 534-1132. Providers update this record themselves, so call before visiting.
How can I verify Robert M. Weiss's license?
NPPES lists Massachusetts license number 57667, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert M. Weiss prescribe under Medicare Part D?
In 2024, Robert M. Weiss had 2,156 Medicare Part D claims for 399 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Robert M. Weiss's MIPS final score?
The 2023 MIPS final score is 91.3 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.