John Cox
Marriage & Family Therapist · Grass Valley, CA
John Cox is a marriage & family therapist with a practice address in Grass Valley, California, and NPI 1740414846, issued on May 5, 2009. Check the license (California MFC 43082, 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 Cox
- Primary taxonomy
- Marriage & Family Therapist 106H00000X
- License number
- MFC 43082 CA
Self-reported in NPPES; status is on the state search - Practice location
- 17183 Retrac Way, Grass Valley, CA 95949
- Phone
- (530) 268-0877
- Enumerated
- May 5, 2009
- Record last updated
- May 5, 2009 (not updated in 17 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest marriage & family therapist records → All 59,889 in California → Look up another NPI →
Also registered at 17183 Retrac Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael PetrilloMarriage & Family Therapist1205060779
Verify John Cox in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license MFC 43082Check 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 Cox among 59,889 marriage & family therapist records in California
John Cox is one of 59,889 marriage & family therapist records with a practice address in California. 4% 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 2009, is newer than 27% of them.
- NPI issued2009 · 27% of these records are older, 70% newer
- In a Medicare fileNo · 4% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2009 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 106H00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
136 marriage & family therapist records list a practice address in Grass Valley
They are 136 of the 1,540 NPPES records with a practice address in Grass Valley, and 59,889 marriage & family therapist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 59,889 in California → Every provider in Grass Valley → Marriage & Family Therapist nationwide →
The 8 marriage & family therapist records with the nearest ZIP codes
- Rachelle Bloksberg, LMFTGrass Valley, CA 959491326348558
- Susan Byrne, MFTGrass Valley, CA 959491780715169
- Spencer Campbell, MFTGrass Valley, CA 959491982768313
- Barbara Coffman, LMFTGrass Valley, CA 959491740420777
- Julia Conrad, MFT 86901Grass Valley, CA 959491891945937
- Hayley DemarestGrass Valley, CA 959491952620874
- Laurie Fitzgerald, MSGrass Valley, CA 959491053482588
- Amelia Gough, LMFTGrass Valley, CA 959491669733119
Common questions
What is John Cox's NPI number?
John Cox's National Provider Identifier (NPI) is 1740414846, issued on May 5, 2009. An NPI identifies a provider in billing; it is not a license.
Where is John Cox located?
The NPPES record lists a practice address at 17183 Retrac Way, Grass Valley, CA, 95949. Phone: (530) 268-0877. Providers update this record themselves, so call before visiting.
How can I verify John Cox's license?
NPPES lists California license number MFC 43082, 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.