Nancy Byatt, D.O.
Psychiatry Physician · Worcester, MA
Nancy Byatt, D.O. is a psychiatry physician with a practice address in Worcester, Massachusetts, and NPI 1487635736, issued on Nov 11, 2005. Check the license (Massachusetts 225164, 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.
- Name
- Nancy Byatt
- Credential
- D.O.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 225164 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Lake Ave N, Worcester, MA 01655
- Phone
- (508) 334-6580
- Enumerated
- Nov 11, 2005
- Record last updated
- Nov 21, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 110075066A MA
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,736 in Massachusetts → Look up another NPI →
Also registered at 55 Lake Ave N
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nawal Aamir, MDInternal Medicine Physician1588248926
- Amarys Abadie, CRNACertified Registered Nurse Anesthetist1992936843
- Paula Abate, NPNurse Practitioner1336265909
- Aly AbayazeedDiagnostic Radiology Physician1821221946
- Zainab AbbasDermatology Physician1609028000
- Mary-Alice Abbott, MDClinical Genetics (M.D.) Physician1982799417
Verify Nancy Byatt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 225164Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Nancy Byatt among 2,736 psychiatry physician records in Massachusetts
Nancy Byatt, D.O. 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 not. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileNo · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2020 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,736 in Massachusetts → Every provider in Worcester → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Cezar Cimpeanu, M.D.Worcester, MA 016551235120858
- Kimberlee Kusiak, M.D.Worcester, MA 016551639157050
- Margaret Lawler, MDWorcester, MA 016551225016702
- Mercedes Menendez, M.D.Worcester, MA 016551891779054
- David Morin, M.D.Worcester, MA 016551215910914
- David Olson, M.D.Worcester, MA 016551982687679
- Paul Plasky, M.D.Worcester, MA 016551144203027
- Dale Rauch, M.D.Worcester, MA 016551124013271
Common questions
What is Nancy Byatt, D.O.'s NPI number?
Nancy Byatt, D.O.'s National Provider Identifier (NPI) is 1487635736, issued on Nov 11, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Nancy Byatt, D.O. located?
The NPPES record lists a practice address at 55 Lake Ave N, Worcester, MA, 01655. Phone: (508) 334-6580. Providers update this record themselves, so call before visiting.
How can I verify Nancy Byatt, D.O.'s license?
NPPES lists Massachusetts license number 225164, 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.
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.