NPPES file of Aug 9, 2026

Cynthia Peng, MD

Psychiatry Physician · Belmont, MA

Cynthia Peng, MD is a psychiatry physician with a practice address in Belmont, Massachusetts, and NPI 1780203919, issued on Apr 8, 2020. Check the license (Massachusetts 295205, 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
1780203919
Name
Cynthia Peng
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
295205 MA
Self-reported in NPPES; status is on the state search
Practice location
115 Mill St, Belmont, MA 02478
Phone
(617) 855-3141
Enumerated
Apr 8, 2020
Record last updated
Jul 1, 2024
Medicare enrollment
Enrolled (PECOS I20230504000141); accepts Medicare assignment
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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Also registered at 115 Mill St

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

  1. Blaise Aguirre, MDChild & Adolescent Psychiatry Physician1619936846
  2. Kayia Akoun, M.D.Psychiatry Physician1588028732
  3. Rana Alam-RomanosSocial Worker1487420311
  4. Robert Alexander, M.D.Psychiatry Physician1447526074
  5. Madeleine AllenStudent in an Organized Health Care Education/Training Program1205553971
  6. Danielle Alleven, PSY.D.Clinical Psychologist1891741153

Verify Cynthia Peng 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 295205
    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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93% fewer Medicare Part D claims than the average psychiatry physician in 2024

73 Medicare Part D claims for 11 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.

  1. Cynthia Peng73
  2. Specialty average1,000

Most prescribed

  1. Ingrezza13 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

  1. The Mclean Hospital CorporationBelmont, MA

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

Cynthia Peng among 2,736 psychiatry physician records in Massachusetts

Cynthia Peng, MD 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 2020, is newer than 91% of them.

  • NPI issued2020 · 91% of these records are older, 7% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 45% of these records are
  • Graduated2020 · median 2005 among the 1,219 with a school on file
  • Record last updated2024 · 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).

151 psychiatry physician records list a practice address in Belmont

They are 151 of the 1,008 NPPES records with a practice address in Belmont, and 2,736 psychiatry physician records in Massachusetts.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Joseph Albeck, MDBelmont, MA 024781255313375
  2. Ross Baldessarini, MDBelmont, MA 024781487644787
  3. Leora Borek, M.D.Belmont, MA 024781134115553
  4. Craig Boyajian, M.D.Belmont, MA 024781831188200
  5. Marni Chanoff, MDBelmont, MA 024781013908706
  6. Donald Cluett, M.D.Belmont, MA 024781710969381
  7. Leonard Glass, MDBelmont, MA 024781639159627
  8. April Hirschberg, MDBelmont, MA 024781063403681

Common questions

What is Cynthia Peng, MD's NPI number?

Cynthia Peng, MD's National Provider Identifier (NPI) is 1780203919, issued on Apr 8, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Cynthia Peng, MD located?

The NPPES record lists a practice address at 115 Mill St, Belmont, MA, 02478. Phone: (617) 855-3141. Providers update this record themselves, so call before visiting.

How can I verify Cynthia Peng, MD's license?

NPPES lists Massachusetts license number 295205, 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 Cynthia Peng, MD prescribe under Medicare Part D?

In 2024, Cynthia Peng, MD had 73 Medicare Part D claims for 11 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.