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

Mr. Nathaniel Alan Ponstein, MD

Individual provider Internal Medicine Physician · NPI 1114123775

Mr. Nathaniel Alan Ponstein, MD is an Anesthesiology in Stanford, California. Graduated from Michigan State University College of Human Medicine in 2000, 26 years ago. Practices with Sutter Bay Medical Foundation, a 3,762-clinician group and accepts Medicare assignment. Licensed in California and Hawaii.

Years since qualifying
26
Trained at
Michigan State University College of Human Medicine
Licensed in
CA, HI
In the registry since
2007
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

300 Pasteur Dr
Stanford, CA 94305-2200
Phone: (650) 723-4000
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence A108136 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MDR-5244 (HI)

Record details

NPI number1114123775
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 21, 2007
Last updated in NPPESJune 8, 2011

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF HUMAN MEDICINE
Graduated 2000 (26 years in practice)
Group practice Sutter Bay Medical Foundation — 3762 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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