Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Nathaniel Hupert, MD

Individual provider Internal Medicine Physician · NPI 1861589947

Nathaniel Hupert, MD practises Internal Medicine in New York, New York. Graduated from Harvard Medical School in 1994, 32 years ago. Practices with Weill Medical College of Cornell, a 2,031-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
32
Trained at
Harvard Medical School
Licensed in
NY
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

525 E68TH Street Starr 5
New York, NY 10065-4872
Phone: (212) 746-4071
Fax: (212) 746-4610
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 218548 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 218548 (NY)

Record details

NPI number1861589947
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 9, 2006
Last updated in NPPESAugust 27, 2020
Certification dateAugust 27, 2020

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 1994 (32 years in practice)
Group practice Weill Medical College Of Cornell — 2031 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients43
Services billed 123 a service is one billed item, such as a visit, a test or a procedure
Average patient age82

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. Those with a page here are linked.

  • New York-Presbyterian Hospital Hospital · New York, NY · listed as New York Presbyterian Hospital
  • Cassena Care At Home Home health agency · Brooklyn, NY

Colleagues at Weill Medical College of Cornell

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2031 clinicians in the practice; 12 are shown here.

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