MR. JOHN GREGORY CLARK D.C.
NPI 1386731677
Chiropractor - Orthopedic in Fresno, CA
About Mr. John Gregory Clark D.c. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. JOHN GREGORY CLARK D.C. (NPI 1386731677) is an individual orthopedic provider in Fresno, California, licensed in California (17061) and active in the NPI registry since October 2006. He is a graduate of Palmer College Chiropractic - West Sunnyvale (1984).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mr. John Gregory Clark D.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Clark reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fresno, CA 93720
- Reassigned Medicare billing, California enrollment
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
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.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 John Clark's NPI number?
The NPI number for John Clark is 1386731677. It was assigned to this individual provider in the NPPES registry on October 6, 2006.
Where is John Clark located?
John Clark practices at 7461 N 1st St Ste 103, Fresno, CA 93720. The listed phone number is (559) 226-3400.
What is John Clark's specialty?
The primary specialty registered for this NPI is Chiropractor, specializing in Orthopedic, with taxonomy code 111NX0800X.
Is John Clark enrolled in Medicare?
Yes. John Clark is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Clark's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Clark reassigns Medicare benefits to Clark Chiropractic Inc. (Fresno, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Clark's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for John Clark was last updated on January 25, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years 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.