Doctor profile · Federal record
Dr. Gregory Crossman, D.C.
Chiropractor (CMS: Chiropractic) · San Rafael, CA
- NPI 1316133531
- 38 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4340 Redwood Hwy Ste 106
San Rafael, CA 949032131
(415) 446-7285
fax (415) 446-0109
Credentials & registration
- NPI registered
- September 2007 — 19 yrs on file
- Profile last updated
- September 29, 2021
- Year of graduation
- 1988 — 38 yrs since
- Specialty taxonomy
- 111N00000X — NUCC code
- State license (1)
- California #19743
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1316133531. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
128
Distinct HCPCS
2
Medicare allowed
$4,451
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
98940 |
Chiropractic manipulative treatment, 1-2 spinal regions | 94 | 27 | $31 | |
98941 |
Chiropractic manipulative treatment, 3-4 spinal regions | 34 | 12 | $45 |
In context: peer comparison
Among 7 peers in this city , average services per provider: 292. This provider delivers 0.4× the peer median.Frequently asked questions
What is Dr. Gregory Crossman's medical specialty?
Dr. Gregory Crossman practices Chiropractor in San Rafael, CA.
Where does Dr. Gregory Crossman practice?
Dr. Gregory Crossman practices at 4340 Redwood Hwy Ste 106, San Rafael, CA 949032131. Office phone: 4154467285.
What is Dr. Gregory Crossman's NPI?
Dr. Gregory Crossman's National Provider Identifier (NPI) is 1316133531, issued by NPPES.
Does Dr. Gregory Crossman accept Medicare assignment?
Dr. Gregory Crossman does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Gregory Crossman commonly perform?
Top Medicare-reported procedures in 2023: Chiropractic manipulative treatment, 1-2 spinal regions (HCPCS 98940); Chiropractic manipulative treatment, 3-4 spinal regions (HCPCS 98941). Source: CMS Medicare Physician & Other Practitioners file.