Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. GREGORY CROSSMAN D.C.
NPI 1316133531
Chiropractor in San Rafael, CA

Q: What is Gregory Crossman's NPI number?

The NPI number for Gregory Crossman is 1316133531. It was assigned to this individual provider in the NPPES registry on September 20, 2007.

Q: What is Gregory Crossman's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Crossman was last updated on August 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days 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.

Active since September 20, 2007

4340 REDWOOD HWY STE F103, SAN RAFAEL, CA 94903(415) 446-7285 Get Directions Write a Review

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

Record update history: Aug 1, 2026, Sep 29, 2021, May 4, 2020 and 1 more (4 updates tracked since 2016).

On this page

About Dr. Gregory Crossman D.c. NPPES

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

DR. GREGORY CROSSMAN D.C. (NPI 1316133531) is an individual chiropractor in San Rafael, California, licensed in California (19743) and active in the NPI registry since September 2007. He is a graduate of Life Chiropractic College - West (1988).

NPPES Registry Identity

NPI1316133531

Entity TypeIndividualMale

Primary Taxonomy111N00000X

Provider Legal NameDR. GREGORY CROSSMANCredential: D.C.

Location Address4340 REDWOOD HWY STE F103San Rafael, CA 94903-2121

Mailing Address4340 Redwood Hwy Ste 103San Rafael, CA 94903-2131 · (415) 446-7285

Phone(415) 446-7285

Sole ProprietorNo

Medical School CMSLife Chiropractic College - WestGraduated 1988

Enumeration DateSeptember 20, 2007

Last NPPES UpdateAugust 1, 20264 updates tracked since enumeration

NPPES CertifiedAugust 1, 2026

✔ NPI 1316133531 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers

Taxonomy Code111N00000X

License✔ Licensed in CA · 19743

Definition

A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.

4340 REDWOOD HWY STE F103, San Rafael, CA 94903

Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gregory Crossman D.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2961890033

PECOS Enrollment IDI20211021003114

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Chiropractic manipulative treatment, 1-2 spinal regions 98940

Chiropractic manipulative treatment focuses on adjusting your spine to improve your body's physical function. In this service, a chiropractor applies controlled force to 1-2 spinal regions. This helps to restore mobility and alleviate discomfort in those areas.

84 services25 patients

Other Providers at the Same Location NPPES

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

CROSSMAN CHIROPRACTIC, INC.

Chiropractor

4340 REDWOOD HWY STE F103
SAN RAFAEL, CA 94903

Marin County (415) 446-7285

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 Gregory Crossman's NPI number?

The NPI number for Gregory Crossman is 1316133531. It was assigned to this individual provider in the NPPES registry on September 20, 2007.

Where is Gregory Crossman located?

Gregory Crossman practices at 4340 Redwood Hwy Ste F103, San Rafael, CA 94903. The listed phone number is (415) 446-7285.

What is Gregory Crossman's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Is Gregory Crossman enrolled in Medicare?

Yes. Gregory Crossman is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Gregory Crossman was last updated on August 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days 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.