MARK GREGORY BAKER
NPI 1386448827
Rehabilitation Practitioner in San Francisco, CA

Active since April 03, 2025
822 GEARY ST, SAN FRANCISCO, CA 94109(628) 216-0303 Get Directions Write a Review

NPPES record last updated: June 1, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 1, 2026, Apr 3, 2025 (2 updates tracked since 2025).

About Mark Gregory Baker NPPES

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

MARK GREGORY BAKER (NPI 1386448827) is an individual rehabilitation practitioner in San Francisco, California and active in the NPI registry since April 2025. He maintains a secondary practice location in San Jose.

NPPES Registry Identity

NPI1386448827
Entity TypeIndividualMale
Primary Taxonomy225400000X
Provider Legal NameMARK GREGORY BAKER
Location Address822 GEARY STSan Francisco, CA 94109-7228
Mailing Address822 Geary StSan Francisco, CA 94109-7228 · (628) 216-0303
Sole ProprietorYes
Enumeration DateApril 3, 2025
Last NPPES UpdateJune 1, 20262 updates tracked since enumeration
NPPES CertifiedJune 1, 2026
NPI 1386448827 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyRehabilitation PractitionerRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code225400000X
Definition
A health care practitioner who trains or retrains individuals disabled by disease or injury to help them attain their maximum functional capacity.
822 GEARY ST, San Francisco, CA 94109

Secondary Practice Location 1

Location 196 S 14th StSan Jose, CA 95112-2015 · Phone (408) 998-3293 · Fax (408) 642-6052

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.

Day Training/Habilitation Specialist
822 GEARY ST
SAN FRANCISCO, CA 94109
Licensed Vocational Nurse
822 GEARY ST
SAN FRANCISCO, CA 94109
Day Training/Habilitation Specialist
822 GEARY ST
SAN FRANCISCO, CA 94109
Rehabilitation Practitioner
822 GEARY ST
SAN FRANCISCO, CA 94109
Day Training/Habilitation Specialist
822 GEARY ST
SAN FRANCISCO, CA 94109
Day Training/Habilitation Specialist
822 GEARY ST
SAN FRANCISCO, CA 94109
Day Training/Habilitation Specialist
822 GEARY ST
SAN FRANCISCO, CA 94109
Day Training/Habilitation Specialist
822 GEARY ST
SAN FRANCISCO, CA 94109

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 Mark Baker's NPI number?

The NPI number for Mark Baker is 1386448827. It was assigned to this individual provider in the NPPES registry on April 3, 2025.

Where is Mark Baker located?

Mark Baker practices at 822 Geary St, San Francisco, CA 94109. The listed phone number is (628) 216-0303.

What is Mark Baker's specialty?

The primary specialty registered for this NPI is Rehabilitation Practitioner with taxonomy code 225400000X.

When was this NPI record last updated?

The NPPES record for Mark Baker was last updated on June 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.