Dr. Marshall Forstein, MD

  • Cambridge, MA
  • Psychiatrist
NPI1063555423
Part D claims, 2024
33
Publications
12
State license
1
Year NPI issued
2007
Practice address
1493 Cambridge St, Cambridge, MA 02139-1047
Practice phone
Call (617) 665-1189
Professional email
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Personal email
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Mobile number
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Social profiles

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Dr. Marshall Forstein is a psychiatrist in Cambridge, Massachusetts

Dr. Forstein practices in Cambridge, Massachusetts.

Dr. Forstein's NPI, 1063555423, was assigned on February 15, 2007. Dr. Forstein holds Massachusetts license 49162.

NPI and contact details
NPI enumeration date
February 15, 2007
NPI status
Active
Practice phone
(617) 665-1189
Professional email
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Personal email
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Mobile number
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Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data

Dr. Marshall Forstein's practice address is in Cambridge, Massachusetts

Dr. Forstein's practice address in the NPI Registry is 1493 Cambridge St, Cambridge, MA 02139-1047. The practice phone is (617) 665-1189.

  • NPI Registry address
    1493 Cambridge St, Cambridge, MA 02139-1047Phone(617) 665-1189

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dmand AI tracks the EHR system at Dr. Marshall Forstein's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Forstein practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Dr. Forstein's practiceAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Marshall Forstein is one of 1,857 psychiatrists in Massachusetts

Psychiatry is Dr. Forstein's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Forstein is licensed in Massachusetts.

Specialties and state licenses

  • Psychiatry, MassachusettsPrimaryLicense 49162 · taxonomy 2084P0800X

Psychiatrists near Dr. Forstein

Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Marshall Forstein wrote 33 Medicare Part D claims in 2024

In 2024, Dr. Forstein wrote 33 Medicare Part D claims. 100% of them were for generic drugs. CMS names the drug for 24 of them, across 2 drugs with 11 or more claims each, at $2,877 in total drug cost. In 2023, CMS named 32 claims across 2 drugs.

Part D claims, 202433
Drugs named by CMS2
Total drug cost$2,877

Dr. Forstein's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 322024: 2425%

Drugs named by CMS: 2 in 2024, 2 in 2023.

See all prescribing by Dr. Forstein

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Dr. Marshall Forstein has 12 publications on record

Dmand AI links 12 papers to Dr. Forstein, published from 2014 to 2022. 2014 was the busiest year, with 2. The most frequent topics are Internship and Residency, Psychiatry and Curriculum. Dr. Forstein has published most often in Acad Psychiatry. Dr. Forstein's most frequent co-authors are Deborah Suzanne Cowley, Robert Joseph, MD and Cynthia J. Telingator, MD.

Papers12
Years published2014 to 2022

Dr. Forstein's papers by year, 2014 to 2022

Topics Dr. Forstein writes about most

  • Internship and Residency
  • Psychiatry
  • Curriculum
  • HIV Infections
  • Sexual and Gender Minorities

Dr. Forstein's most frequent co-authors

Recent publications by Dr. Forstein

See all 12 publications and co-authors

See who Dr. Forstein researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Forstein works with, so you can find a warm path to the right psychiatrists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Sources for Dr. Marshall Forstein's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Marshall Forstein

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Marshall Forstein's NPI number?

Dr. Marshall Forstein's NPI number is 1063555423. It was assigned on February 15, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Marshall Forstein?

Dr. Marshall Forstein is a psychiatrist in Cambridge, Massachusetts. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).

Where does Dr. Marshall Forstein practice?

Dr. Forstein practices at 1493 Cambridge St, Cambridge, MA 02139-1047.

What is Dr. Marshall Forstein's office phone number?

The practice phone on file for Dr. Forstein is (617) 665-1189.

What is Dr. Marshall Forstein's medical license number?

Dr. Forstein holds Massachusetts license 49162.

What drugs does Dr. Marshall Forstein prescribe most?

In 2024 Medicare Part D data, Dr. Forstein's most prescribed drugs by claims were Clonazepam and Methylphenidate ER.

How long has Dr. Marshall Forstein been practicing?

Dr. Forstein's NPI was assigned in 2007.

Does Dr. Marshall Forstein do research?

Dmand AI links 12 publications to Dr. Forstein, published from 2014 to 2022.

Who does Dr. Marshall Forstein publish with?

Dr. Forstein's most frequent co-authors are Deborah Suzanne Cowley (4 shared papers), Robert Joseph, MD (2 shared papers) and Cynthia J. Telingator, MD (2 shared papers).

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