JOHN M RIDDLE MD
NPI 1003823550
Family Medicine in Hanford, CA
About John M Riddle Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN M RIDDLE MD (NPI 1003823550) is an individual family medicine provider in Hanford, California, licensed in Oklahoma (14837) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of Oklahoma College Of Medicine (1983).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
John M Riddle Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show John Riddle reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Hanford, CA 93230
- Reassigned Medicare billing, California enrollment
- 2 clinicians in this Medicare group
Muskogee, OK 74403
- Reassigned Medicare billing, Oklahoma enrollment
- 5 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 93230 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Riddle's NPI number?
The NPI number for John Riddle is 1003823550. It was assigned to this individual provider in the NPPES registry on August 1, 2006.
Where is John Riddle located?
John Riddle practices at 869 W Lacey Blvd, Hanford, CA 93230. The listed phone number is (559) 582-9313.
What is John Riddle's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is John Riddle enrolled in Medicare?
Yes. John Riddle is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for John Riddle's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Riddle reassigns Medicare benefits to 2 organizations: Central Valley Comprehensive Care Inc. (Hanford, CA) and Kind Mind Mental Health Professional Corporation (Muskogee, OK). Each 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 Riddle's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Riddle accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 4 other insurers list John Riddle as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for John Riddle was last updated on October 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.
# John M Riddle, MD · NPI 1003823550
Family Medicine physician in Hanford, California. Individual provider, active in the CMS NPPES registry since August 1, 2006.
## Identity
- **NPI:** 1003823550 (Entity type: Individual)
- **Enumerated:** August 1, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 14837 (Oklahoma)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 869 W LACEY BLVD, Hanford, CA 93230-4328
- **Phone:** (559) 582-9313 · **Fax:** (559) 582-2570
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Central Valley Comprehensive Care Inc. (NPI 1841348448, Hanford, CA); Kind Mind Mental Health Professional Corporation (NPI 1033974951, Muskogee, OK) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Oklahoma College Of Medicine, class of 1983
## Record status
- **NPPES last updated:** October 9, 2025
- **Other identifiers:** Medicaid 00A448380 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1003823550) · Data from the CMS NPPES public registry.