DR. JOHN MICHAEL FINLEY DO
NPI 1922042076
Internal Medicine - Rheumatology in Chino, CA
About Dr. John Michael Finley Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN MICHAEL FINLEY DO (NPI 1922042076) is an individual rheumatology provider in Chino, California, licensed in California (20A5583) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Midwestern University, Chicago College Of Osteopathic Med (1986).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. John Michael Finley Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Finley reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chino, CA 91710
- Reassigned Medicare billing, California enrollment
- 14 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.
Areas of Expertise CMS Part B claims 3
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91710 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 5
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 Finley's NPI number?
The NPI number for John Finley is 1922042076. It was assigned to this individual provider in the NPPES registry on June 16, 2006.
Where is John Finley located?
John Finley practices at 13193 Central Ave Ste 100, Chino, CA 91710. The listed phone number is (909) 464-9675.
What is John Finley's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is John Finley enrolled in Medicare?
Yes. John Finley is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Finley's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Finley reassigns Medicare benefits to Health Service Alliance (Chino, 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 Finley'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 Finley was last updated on February 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Dr. John Michael Finley, DO · NPI 1922042076
Rheumatology physician in Chino, California. Individual provider, active in the CMS NPPES registry since June 16, 2006.
## Identity
- **NPI:** 1922042076 (Entity type: Individual)
- **Enumerated:** June 16, 2006
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** 20A5583 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 13193 CENTRAL AVE STE 100, Chino, CA 91710-4179
- **Phone:** (909) 464-9675
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Health Service Alliance (NPI 1801307368, Chino, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Midwestern University, Chicago College Of Osteopathic Med, class of 1986
## Record status
- **NPPES last updated:** February 11, 2026
- **Other identifiers:** Medicaid 00AX55830 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1922042076) · Data from the CMS NPPES public registry.