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

John Eric Demko, MD

Individual provider Nephrology Physician · NPI 1710419338

John Eric Demko, MD is an Internal Medicine in San Francisco, California. Qualified in 2017, 9 years ago. Practices with University of Penn-Medical Group, a 3,401-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
9
Licensed in
CA
In the registry since
2017
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

505 Parnassus Ave
San Francisco, CA 94143-2204
Phone: (484) 269-8669
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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 A161777 (CA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1710419338
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 2, 2017
Last updated in NPPESJuly 5, 2021
Certification dateJuly 5, 2021
Mailing address500 Parnassus Ave, San Francisco, CA 94143-0532

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesNEPHROLOGY
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice University Of Penn-Medical Group — 3401 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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