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DR. WILLIAM BLASCHKO M.D.
NPI 1891709689
Family Medicine in San Francisco, CA

Active since July 28, 2006
400 PARNASSUS AVE, SAN FRANCISCO, CA 94143(760) 674-3847 Get Directions Write a Review

NPPES record last updated: January 28, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 28, 2021, Aug 13, 2020, Apr 1, 2016 (3 updates tracked since 2016).

About Dr. William Blaschko M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM BLASCHKO M.D. (NPI 1891709689) is an individual family medicine provider in San Francisco, California, licensed in California (G42865) and active in the NPI registry since July 2006.

NPPES Registry Identity

NPI1891709689
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. WILLIAM BLASCHKOCredential: M.D.
Location Address400 PARNASSUS AVESan Francisco, CA 94143-2202
Mailing Address400 Parnassus AveSan Francisco, CA 94143-2202 · (760) 674-3847
Phone(760) 674-3847
Sole ProprietorNo
Enumeration DateJuly 28, 2006
Last NPPES UpdateJanuary 28, 20213 updates tracked since enumeration
NPPES CertifiedJanuary 28, 2021
✔ NPI 1891709689 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in CA · G42865
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Also ListedEmergency MedicineTaxonomy 207P00000X · License G42865 (CA)
400 PARNASSUS AVE, San Francisco, CA 94143
Open in Google Maps ↗

Other Identifiers 4

Other00G428650Blue Shield
Medicaid00G428650CA
OtherG42865Blue Cross
OtherG42865Riverside Co Ems

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ALEJANDRA GABRIELA DE ALBA CAMPOMANES MD, MPH
Ophthalmology
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2560
DR. MARISSA A BOECK M.D.
Surgery (Surgical Critical Care)
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2161
DR. JACQUELINE EVA WEINSTEIN M.D.
Otolaryngology (Pediatric Otolaryngology)
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1000
TIFFANY PONG ROSS PA-C
Physician Assistant
400 PARNASSUS AVE, 3RD FLOOR, SUITE 311
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2739
SHINTARO TATEBE MSPT
Physical Therapist
400 PARNASSUS AVE, A-68
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-8574
DR. YVONNE W WU MD
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2813
DR. DAVID S. BRADFORD MD
Orthopaedic Surgery
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2739
DR. SANG-MO KANG MD
Surgery
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1551

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Blaschko's NPI number?

The NPI number for William Blaschko is 1891709689. It was assigned to this individual provider in the NPPES registry on July 28, 2006.

Where is William Blaschko located?

William Blaschko practices at 400 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (760) 674-3847.

What is William Blaschko's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

When was this NPI record last updated?

The NPPES record for William Blaschko was last updated on January 28, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.