IndividualActive
Michael Singer, MD, PHD
NPI 1649230327 · Ophthalmology Physician · Boston, MA
Michael Singer, MD, PHD is a Ophthalmology Physician provider in Boston, MA (NPI 1649230327).
Provider details
- NPI number
- 1649230327
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- License
- 214599 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
243 Charles St
Boston, MA 02114-3002
Phone: (617) 523-7900
Street-level locationGet directions
Mailing address
414 Eliot Mail Ctr
Cambridge, MA 02138-7550
Registry dates
- Enumerated
- 2006-03-25
- Last updated
- 2007-07-08
Frequently asked questions
- What is Michael Singer's NPI number?
- Michael Singer's National Provider Identifier (NPI) is 1649230327, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Singer's specialty?
- Michael Singer is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Singer located?
- Michael Singer's practice location on file with NPPES is 243 Charles St, Boston, MA 02114-3002.
- What is Michael Singer's phone number?
- The practice phone number listed in the NPPES registry for Michael Singer is (617) 523-7900.
- Is Michael Singer's NPI active?
- Yes — Michael Singer's NPI (1649230327) 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.