NPPES file of Aug 9, 2026

William G. Muller, M.D.

Internal Medicine Physician · Uxbridge, MA

William G. Muller, M.D. is an internal medicine physician with a practice address in Uxbridge, Massachusetts, and NPI 1891758090, issued on Apr 10, 2006. Check the license (Massachusetts 55642, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891758090
Name
William G. Muller
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
55642 MA
Self-reported in NPPES; status is on the state search
Practice location
281 E Hartford Ave, Uxbridge, MA 01569
Phone
(508) 278-5573
Enumerated
Apr 10, 2006
Record last updated
Apr 30, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(508) 278-0347
Medicaid ID
2069679 MA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →

Also registered at 281 E Hartford Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Pamela Baggeroer, M.D.Internal Medicine Physician1942262324
  2. Christopher Bilodeau, NPNurse Practitioner1942274287
  3. Margret Chang, M.D.Internal Medicine Physician1902124282
  4. Nicolina Cordaro, M.D.Pediatrics Physician1861454548
  5. Christina Cronin, LICSWClinical Social Worker1194039842
  6. Peter Dain, M.D.Internal Medicine Physician1043275902

Verify William G. Muller in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 55642    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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William G. Muller among 6,825 internal medicine physician records in Massachusetts

William G. Muller, M.D. is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 54% newer
  • In a Medicare fileNo · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 60% of these records are
  • Record last updated2010 · 64% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

13 internal medicine physician records list a practice address in Uxbridge

They are 13 of the 139 NPPES records with a practice address in Uxbridge, and 6,825 internal medicine physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 6,825 in Massachusetts → Every provider in Uxbridge → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Pamela Baggeroer, M.D.Uxbridge, MA 015691942262324
  2. Margret Chang, M.D.Uxbridge, MA 015691902124282
  3. Peter Dain, M.D.Uxbridge, MA 015691043275902
  4. Thi Hong Van Do, M.D.Uxbridge, MA 015691255718318
  5. Eric Matthews, D.O.Uxbridge, MA 015691275730368
  6. Maria Patricia Miranda, M.D.Uxbridge, MA 015691952622615
  7. Chiaki Nakata, M.D.Uxbridge, MA 015691174055347
  8. Dennis Pannullo, M.D.Uxbridge, MA 015691114948643

Common questions

What is William G. Muller, M.D.'s NPI number?

William G. Muller, M.D.'s National Provider Identifier (NPI) is 1891758090, issued on Apr 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William G. Muller, M.D. located?

The NPPES record lists a practice address at 281 E Hartford Ave, Uxbridge, MA, 01569. Phone: (508) 278-5573. Providers update this record themselves, so call before visiting.

How can I verify William G. Muller, M.D.'s license?

NPPES lists Massachusetts license number 55642, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.