JOAN REYNOLDS M.D.
NPI 1245276450
Radiology - Diagnostic Radiology in Walnut Creek, CA
About Joan Reynolds M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOAN REYNOLDS M.D. (NPI 1245276450) is an individual diagnostic radiology provider in Walnut Creek, California, licensed in California (G46213) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of New York Medical College (1980).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 7
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
Joan Reynolds M.d. 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
5Medicare enrollment records show Joan Reynolds reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Walnut Creek, CA 94598
- Reassigned Medicare billing, California enrollment
- 181 clinicians in this Medicare group
Walnut Creek, CA 94598
- Reassigned Medicare billing, California enrollment
- 60 clinicians in this Medicare group
Walnut Creek, CA 94598
- Reassigned Medicare billing, California enrollment
- 129 clinicians in this Medicare group
Walnut Creek, CA 94598
- Reassigned Medicare billing, California enrollment
- 810 clinicians in this Medicare group
Oakland, CA 94609
- Reassigned Medicare billing, California enrollment
- 158 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 8
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 94598 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
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 Joan Reynolds's NPI number?
The NPI number for Joan Reynolds is 1245276450. It was assigned to this individual provider in the NPPES registry on June 22, 2006.
Where is Joan Reynolds located?
Joan Reynolds practices at 2125 Oak Grove Rd Suite 200, Walnut Creek, CA 94598. The listed phone number is (925) 296-7150.
What is Joan Reynolds's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Joan Reynolds enrolled in Medicare?
Yes. Joan Reynolds 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 Joan Reynolds's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joan Reynolds reassigns Medicare benefits to 5 organizations: Bay Imaging Consultants Medical Group Inc (Walnut Creek, CA), Michael P Sherman MD Phd, A Medical Corporation (Walnut Creek, CA), John Muir Magnetic Imaging Center (Walnut Creek, CA), John Muir Trauma Physicians Billing Service (Walnut Creek, CA) and Magnetic Imaging Affiliates, LLC (Oakland, CA). 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 Joan Reynolds'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 Joan Reynolds was last updated on April 2, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Joan Reynolds, M.D. · NPI 1245276450
Diagnostic Radiology physician in Walnut Creek, California. Individual provider, active in the CMS NPPES registry since June 22, 2006.
## Identity
- **NPI:** 1245276450 (Entity type: Individual)
- **Enumerated:** June 22, 2006
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** G46213 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2125 OAK GROVE RD, SUITE 200, Walnut Creek, CA 94598-2536
- **Phone:** (925) 296-7150 · **Fax:** (925) 296-7171
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Bay Imaging Consultants Medical Group Inc (NPI 1831756139, Walnut Creek, CA); Michael P Sherman MD Phd, A Medical Corporation (NPI 1831201912, Walnut Creek, CA); John Muir Magnetic Imaging Center (NPI 1235184110, Walnut Creek, CA); John Muir Trauma Physicians Billing Service (NPI 1962551861, Walnut Creek, CA); Magnetic Imaging Affiliates, LLC (NPI 1487040770, Oakland, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York Medical College, class of 1980
## Record status
- **NPPES last updated:** April 2, 2015
- **Other identifiers:** Other 300039422 (CA); Medicare PIN 00G462132 (CA); Medicare UPIN A50324 (CA); and 4 more
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Source: [NPI Profile](https://npiprofile.com/npi/1245276450) · Data from the CMS NPPES public registry.