Marni Joy Chanoff, MD
Psychiatry Physician · Belmont, MA
Marni Joy Chanoff, MD is a psychiatry physician with a practice address in Belmont, Massachusetts, and NPI 1013908706, issued on Nov 2, 2005. Check the license (Massachusetts 221818, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Marni Joy Chanoff
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 221818 MA
Self-reported in NPPES; status is on the state search - Practice location
- 115 Mill St, Belmont, MA 02478
- Phone
- (617) 855-3937
- Enumerated
- Nov 2, 2005
- Record last updated
- Jan 16, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,736 in Massachusetts → Look up another NPI →
Also registered at 115 Mill St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Blaise Aguirre, MDChild & Adolescent Psychiatry Physician1619936846
- Kayia Akoun, M.D.Psychiatry Physician1588028732
- Rana Alam-RomanosSocial Worker1487420311
- Robert Alexander, M.D.Psychiatry Physician1447526074
- Madeleine AllenStudent in an Organized Health Care Education/Training Program1205553971
- Danielle Alleven, PSY.D.Clinical Psychologist1891741153
Verify Marni Joy Chanoff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 221818Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average psychiatry physician in 2024
143 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Clozapine24 claims
- Quetiapine Fumarate23 claims
- Clonazepam19 claims
- Austedo12 claims
- Sertraline Hcl11 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.
Marni Joy Chanoff among 2,736 psychiatry physician records in Massachusetts
Marni Joy Chanoff, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2008 · 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.
All 2,736 in Massachusetts → Every provider in Belmont → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Joseph Albeck, MDBelmont, MA 024781255313375
- Ross Baldessarini, MDBelmont, MA 024781487644787
- Leora Borek, M.D.Belmont, MA 024781134115553
- Craig Boyajian, M.D.Belmont, MA 024781831188200
- Donald Cluett, M.D.Belmont, MA 024781710969381
- Leonard Glass, MDBelmont, MA 024781639159627
- April Hirschberg, MDBelmont, MA 024781063403681
- Nathaniel Kuhn, M.D.Belmont, MA 024781821071770
Common questions
What is Marni Joy Chanoff, MD's NPI number?
Marni Joy Chanoff, MD's National Provider Identifier (NPI) is 1013908706, issued on Nov 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Marni Joy Chanoff, MD located?
The NPPES record lists a practice address at 115 Mill St, Belmont, MA, 02478. Phone: (617) 855-3937. Providers update this record themselves, so call before visiting.
How can I verify Marni Joy Chanoff, MD's license?
NPPES lists Massachusetts license number 221818, 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 Marni Joy Chanoff, MD prescribe under Medicare Part D?
In 2024, Marni Joy Chanoff, MD had 143 Medicare Part D claims; 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.