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

John Nesemann, MD, MSC

Individual provider Ophthalmology Physician · NPI 1124777586

John Nesemann, MD, MSC is an Ophthalmology in San Francisco, California. Graduated from University of California, Geffen School of Medicine in 2022, 4 years ago. Works from 3 locations. Licensed in California.

Years since qualifying
4
Trained at
University of California, Geffen School of Medicine
Licensed in
CA
In the registry since
2022
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

513 Parnassus Ave # S321
San Francisco, CA 94143-2205
Phone: (415) 476-1239
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (2)

  • 1001 Potrero Avenue, San Francisco, CA 94110-3510 — (628) 206-8025
  • 490 Illinois Street, San Francisco, CA 94158 — (415) 353-2020

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence A189201 (CA)

Record details

NPI number1124777586
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , MSC
Sole proprietorNo
NPI enumeratedMarch 22, 2022
Last updated in NPPESJune 29, 2026
Certification dateJune 29, 2026

Medicare enrollment

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

Medicare specialtyOPHTHALMOLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduated 2022 (4 years in practice)
Accepts Medicare assignment Not indicated
Practice locations3 on file with Medicare

Other providers in San Francisco