John Grigsby, A.T.C.
Athletic Trainer · Orinda, CA
John Grigsby, A.T.C. is an athletic trainer with a practice address in Orinda, California, and NPI 1134661838, issued on Nov 11, 2016. Check the license (California 040502063, 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
- John Grigsby
- Credential
- A.T.C.
- Primary taxonomy
- Athletic Trainer 2255A2300X
- License number
- 040502063 CA
Self-reported in NPPES; status is on the state search - Practice location
- 750 Moraga Way, Orinda, CA 94563
- Phone
- (925) 280-3930
- Enumerated
- Nov 11, 2016
- Record last updated
- Nov 11, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (925) 280-3931
- Entity
- Type 1 · individual
8 nearest athletic trainer records → All 2,605 in California → Look up another NPI →
Verify John Grigsby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 040502063Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John Grigsby among 2,605 athletic trainer records in California
John Grigsby, A.T.C. is one of 2,605 athletic trainer records with a practice address in California. under 1% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2016, is newer than 30% of them.
- NPI issued2016 · 30% of these records are older, 62% newer
- In a Medicare fileNo · under 1% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2016 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2255A2300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 athletic trainer records list a practice address in Orinda
They are 3 of the 278 NPPES records with a practice address in Orinda, and 2,605 athletic trainer records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,605 in California → Every provider in Orinda → Athletic Trainer nationwide →
The 8 athletic trainer records with the nearest ZIP codes
- Cecilia GeeOrinda, CA 945631134901911
- Marlee Gross, ATCOrinda, CA 945631942747696
- Donna Day, PHARMDPinole, CA 945641346800265
- Daniel O'SheaPinole, CA 945641104327774
- Nicole Oaks, ATCPinole, CA 945641922528777
- Kylie CastPittsburg, CA 945651205599941
- Analicia Martin, MA, ATCOakley, CA 945611841403128
- Brian Powelson, ATCPittsburg, CA 945651891542122
Common questions
What is John Grigsby, A.T.C.'s NPI number?
John Grigsby, A.T.C.'s National Provider Identifier (NPI) is 1134661838, issued on Nov 11, 2016. An NPI identifies a provider in billing; it is not a license.
Where is John Grigsby, A.T.C. located?
The NPPES record lists a practice address at 750 Moraga Way, Orinda, CA, 94563. Phone: (925) 280-3930. Providers update this record themselves, so call before visiting.
How can I verify John Grigsby, A.T.C.'s license?
NPPES lists California license number 040502063, 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.