NPPES file of Aug 9, 2026

Howard N. Fixler, M.D.

Internal Medicine Physician · Worcester, MA

Howard N. Fixler, M.D. is an internal medicine physician with a practice address in Worcester, Massachusetts, and NPI 1437132297, issued on Nov 25, 2005. Check the license (Massachusetts 53904, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1437132297
Name
Howard N. Fixler
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
53904 MA
Self-reported in NPPES; status is on the state search
Practice location
189 May St, Worcester, MA 01602
Phone
(508) 791-6351
Enumerated
Nov 25, 2005
Record last updated
Jul 13, 2026
Medicaid ID
3099423 MA
Medicare enrollment
Enrolled (PECOS I20050426001177); accepts Medicare assignment
Medical or professional school
University Of Massachusetts Medical School, 1983
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. 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 189 May St

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

  1. Wiaam Ahmed, M.DPhysical Medicine & Rehabilitation Physician1750673299
  2. Vasanthi Arakali, M.D.Internal Medicine Physician1902889983
  3. Ralph Brutus, MDPhysical Medicine & Rehabilitation Physician1073501557
  4. Sara Brzykcy, N.P.Primary Care Nurse Practitioner1518393065
  5. Sheree Estes, PSY DClinical Neuropsychologist1316930142
  6. Diana Giorgio, DPTPhysical Therapist1942033311

Verify Howard N. Fixler 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 53904    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

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75% fewer Medicare Part D claims than the average internal medicine physician in 2024

780 Medicare Part D claims for 97 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Howard Fixler780
  2. Specialty average3,176

Most prescribed

  1. Buprenorphine-Naloxone567 claims
  2. Suboxone102 claims
  3. Varenicline Tartrate15 claims
  4. Vivitrol15 claims
  5. Buprenorphine Hcl14 claims
  6. Acamprosate Calcium13 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: $226.77

4 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Howard Fixler$226.77
  2. Specialty average$1,303.06

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

  1. Total Wellness Centers LLCWorcester, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Howard N. Fixler among 6,825 internal medicine physician records in Massachusetts

Howard N. Fixler, 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. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 88% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1983 · median 2004 among the 4,103 with a school on file
  • Record last updated2026 · 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).

448 internal medicine physician records list a practice address in Worcester

They are 448 of the 13,166 NPPES records with a practice address in Worcester, and 6,825 internal medicine physician records in Massachusetts.

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

The 8 internal medicine physician records with the nearest ZIP codes

  1. Vasanthi Arakali, M.D.Worcester, MA 016021902889983
  2. Nelli Dorman, MDWorcester, MA 016021568423739
  3. Peter Lucas, MDWorcester, MA 016021780601260
  4. Evelyn Morris, M.D.Worcester, MA 016021598712333
  5. Peter Betjemann, M.D.Northampton, MA 016011598804387
  6. David Fields, M.D.Worcester, MA 016041538142815
  7. Lei Jiang, M.D.Worcester, MA 016041760439277
  8. Petra Kajla, M.D.Worcester, MA 016041144203126

Common questions

What is Howard N. Fixler, M.D.'s NPI number?

Howard N. Fixler, M.D.'s National Provider Identifier (NPI) is 1437132297, issued on Nov 25, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Howard N. Fixler, M.D. located?

The NPPES record lists a practice address at 189 May St, Worcester, MA, 01602. Phone: (508) 791-6351. Providers update this record themselves, so call before visiting.

How can I verify Howard N. Fixler, M.D.'s license?

NPPES lists Massachusetts license number 53904, 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 Howard N. Fixler, M.D. prescribe under Medicare Part D?

In 2024, Howard N. Fixler, M.D. had 780 Medicare Part D claims for 97 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.

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.