IndividualActive
Nancy Ann Simonian, M.D.
NPI 1386712123 · Neurology Physician · Cambridge, MA
Nancy Ann Simonian, M.D. is a Neurology Physician provider in Cambridge, MA (NPI 1386712123).
Provider details
- NPI number
- 1386712123
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 76051 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
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
Millennium Pharmaceuticals
40 Landsdowne St
Cambridge, MA 02139
Phone: (617) 551-3612
Approximate (ZIP-level) locationGet directions
Mailing address
61 Old Sudbury Rd
Wayland, MA 01778-1808
Registry dates
- Enumerated
- 2006-12-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is Nancy Ann Simonian's NPI number?
- Nancy Ann Simonian's National Provider Identifier (NPI) is 1386712123, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Ann Simonian's specialty?
- Nancy Ann Simonian is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Nancy Ann Simonian located?
- Nancy Ann Simonian's practice location on file with NPPES is Millennium Pharmaceuticals, Cambridge, MA 02139.
- What is Nancy Ann Simonian's phone number?
- The practice phone number listed in the NPPES registry for Nancy Ann Simonian is (617) 551-3612.
- Is Nancy Ann Simonian's NPI active?
- Yes — Nancy Ann Simonian's NPI (1386712123) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.