Gregg Michael Diamond, DC
Chiropractor · San Rafael, CA
Gregg Michael Diamond, DC is a chiropractor with a practice address in San Rafael, California, and NPI 1376823666, issued on Aug 18, 2011. Check the license (California 30417, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Gregg Michael Diamond
- Credential
- DC
- Primary taxonomy
- Chiropractor 111N00000X
- License number
- 30417 CA
Self-reported in NPPES; status is on the state search - Practice location
- 806 4TH St, San Rafael, CA 94901
- Phone
- (415) 482-6577
- Enumerated
- Aug 18, 2011
- Record last updated
- Aug 18, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (415) 482-6539
- Entity
- Type 1 · individual
Also registered at 806 4TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jonathan Hyslop, D.C.Chiropractor1194789560
Verify Gregg Michael Diamond in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 30417Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54 chiropractor records list a practice address in San Rafael
They are 54 of the 3,159 NPPES records with a practice address in San Rafael, and 11,498 chiropractor records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 54 in San Rafael → All 11,498 in California → Every provider in San Rafael →
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Common questions
What is Gregg Michael Diamond, DC's NPI number?
Gregg Michael Diamond, DC's National Provider Identifier (NPI) is 1376823666, issued on Aug 18, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Gregg Michael Diamond, DC located?
The NPPES record lists a practice address at 806 4TH St, San Rafael, CA, 94901. Phone: (415) 482-6577. Providers update this record themselves, so call before visiting.
How can I verify Gregg Michael Diamond, DC's license?
NPPES lists California license number 30417, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.