Ann Epstein, MD
NPI 1821137704 · Psychiatry Physician · Cambridge, MA
Ann Epstein, MD is a Psychiatry Physician provider in Cambridge, MA (NPI 1821137704).
Provider details
- NPI number
- 1821137704
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 54217 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-06
- Last updated
- 2015-05-18
Frequently asked questions
- What is Ann Epstein's NPI number?
- Ann Epstein's National Provider Identifier (NPI) is 1821137704, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ann Epstein's specialty?
- Ann Epstein is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Ann Epstein located?
- Ann Epstein's practice location on file with NPPES is 328 Broadway, Cambridge, MA 02139-1840.
- What is Ann Epstein's phone number?
- The practice phone number listed in the NPPES registry for Ann Epstein is (617) 661-2688.
- Is Ann Epstein's NPI active?
- Yes — Ann Epstein's NPI (1821137704) is active in the NPPES registry as of the last update on 2015-05-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.