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Alexander Blau, M.D.
NPI 1952635229 · Internal Medicine Physician · New York, NY
Alexander Blau, M.D. is a Internal Medicine Physician provider in New York, NY (NPI 1952635229).
Provider details
- NPI number
- 1952635229
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 287063 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(89/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
305 Broadway Ste 444
New York, NY 10007
Phone: (212) 766-4433
Street-level locationGet directions
Mailing address
305 Broadway Ste 444
New York, NY 10007-3619
Additional practice locations (1)
- 300 Pasteur DrStanford, CA 94305-2200Phone: (650) 723-9215
Registry dates
- Enumerated
- 2009-09-19
- Last updated
- 2018-07-02
Frequently asked questions
- What is Alexander Blau's NPI number?
- Alexander Blau's National Provider Identifier (NPI) is 1952635229, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexander Blau's specialty?
- Alexander Blau is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Alexander Blau located?
- Alexander Blau's practice location on file with NPPES is 305 Broadway Ste 444, New York, NY 10007.
- What is Alexander Blau's phone number?
- The practice phone number listed in the NPPES registry for Alexander Blau is (212) 766-4433.
- Is Alexander Blau's NPI active?
- Yes — Alexander Blau's NPI (1952635229) is active in the NPPES registry as of the last update on 2018-07-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.