Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Alexander Blair

Individual provider Nephrology Physician · NPI 1811342140

Alexander Blair practises Nephrology in New York, New York. Graduated from Harvard Medical School in 2016, 10 years ago. Practices with New York University, a 5,884-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
10
Trained at
Harvard Medical School
Licensed in
NY
In the registry since
2016
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Practice location Address checks out

222 E 41st St Fl 20
New York, NY 10017-6739
Phone: (212) 263-0705
Fax: (212) 263-0704
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 309900 (NY)

Record details

NPI number1811342140
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 23, 2016
Last updated in NPPESApril 3, 2023
Certification dateApril 3, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNEPHROLOGY
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 2016 (10 years in practice)
Group practice New York University — 5884 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients112
Services billed 269 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at New York University

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 5884 clinicians in the practice; 12 are shown here.

Other providers in New York