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

Mary D. Piel, MD

Individual provider Pediatrics Physician · NPI 1477619823

Mary D. Piel, MD is a Pediatrics Physician in San Francisco, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
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

3641 California St
San Francisco, CA 94118-1701
Phone: (415) 668-0888
Fax: (415) 752-5391
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence G65043 (CA)

Record details

NPI number1477619823
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 29, 2006
Last updated in NPPESJuly 8, 2007

Other providers in San Francisco