Kenneth A. Hetzler, M.D.
Psychiatry Physician · Worcester, MA
Kenneth A. Hetzler, M.D. is a psychiatry physician with a practice address in Worcester, Massachusetts, and NPI 1083729966, issued on Aug 20, 2006. Check the license (Massachusetts 59716, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Kenneth A. Hetzler
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 59716 MA
Self-reported in NPPES; status is on the state search - Practice location
- 123 Summer St, Worcester, MA 01608
- Phone
- (509) 363-5000
- Enumerated
- Aug 20, 2006
- Record last updated
- Feb 10, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicaid ID
- 3045676 MA
- Medicare enrollment
- Enrolled (PECOS I20051022000095); accepts Medicare assignment
- Medical or professional school
- University Of Cincinnati College Of Medicine, 1981
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,736 in Massachusetts → Look up another NPI →
Also registered at 123 Summer St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ibragim Al-Seykal, M.D.Student in an Organized Health Care Education/Training Program1730615261
Verify Kenneth A. Hetzler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 59716Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% fewer Medicare Part D claims than the average psychiatry physician in 2024
454 Medicare Part D claims for 70 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.
Most prescribed
- Gabapentin34 claims
- Clonazepam31 claims
- Olanzapine29 claims
- Bupropion Hcl Sr23 claims
- Quetiapine Fumarate21 claims
- Prazosin Hcl19 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.
Bills Medicare through one group practice
- Emerson Practice Associates, IncConcord, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kenneth A. Hetzler among 2,736 psychiatry physician records in Massachusetts
Kenneth A. Hetzler, M.D. is one of 2,736 psychiatry physician records with a practice address in Massachusetts. 65% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 51% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated1981 · median 2005 among the 1,219 with a school on file
- Record last updated2015 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
133 psychiatry physician records list a practice address in Worcester
They are 133 of the 13,166 NPPES records with a practice address in Worcester, and 2,736 psychiatry physician records in Massachusetts.
All 2,736 in Massachusetts → Every provider in Worcester → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Alex Deshields, M.D.Worcester, MA 016081497916472
- Olga Novik, M.D., M.P.H.Worcester, MA 016081487794160
- Bharati Phadke, MDWorcester, MA 016081528042124
- Mark Cutler, MDWorcester, MA 016091528044328
- Judith Eaton, M.D.Worcester, MA 016091295782928
- Winifred Merritt, M.D.Worcester, MA 016091518980390
- Cecilia Mikalac, MDWorcester, MA 016091558362285
- Ruth Westheimer, M.D.Worcester, MA 016091336202423
Common questions
What is Kenneth A. Hetzler, M.D.'s NPI number?
Kenneth A. Hetzler, M.D.'s National Provider Identifier (NPI) is 1083729966, issued on Aug 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kenneth A. Hetzler, M.D. located?
The NPPES record lists a practice address at 123 Summer St, Worcester, MA, 01608. Phone: (509) 363-5000. Providers update this record themselves, so call before visiting.
How can I verify Kenneth A. Hetzler, M.D.'s license?
NPPES lists Massachusetts license number 59716, 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 Kenneth A. Hetzler, M.D. prescribe under Medicare Part D?
In 2024, Kenneth A. Hetzler, M.D. had 454 Medicare Part D claims for 70 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.