MR. THOMAS PATRICK WALKER F.N.P.
NPI 1629521646
Nurse Practitioner - Family in San Diego, CA
About Mr. Thomas Patrick Walker F.n.p. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. THOMAS PATRICK WALKER F.N.P. (NPI 1629521646) is an individual family provider in San Diego, California, licensed in California (95004279) and active in the NPI registry since July 2016. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mr. Thomas Patrick Walker F.n.p. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Thomas Walker reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Diego, CA 92131
- Reassigned Medicare billing, California enrollment
- 38 clinicians in this Medicare group
Tustin, CA 92780
- Reassigned Medicare billing, California enrollment
- 2,052 clinicians in this Medicare group
Huntington Beach, CA 92647
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Concertocare Medical Group Of California PC
- 46 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 92127 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
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 Thomas Walker's NPI number?
The NPI number for Thomas Walker is 1629521646. It was assigned to this individual provider in the NPPES registry on July 26, 2016.
Where is Thomas Walker located?
Thomas Walker practices at 16745 W Bernardo Dr, San Diego, CA 92127. The listed phone number is (858) 592-2000.
What is Thomas Walker's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Thomas Walker enrolled in Medicare?
Yes. Thomas Walker is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Thomas Walker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Walker reassigns Medicare benefits to 3 organizations: Seasons Medical Group Of California Incorporated (San Diego, CA), Healthcare Partners Affiliates Medical Group (Tustin, CA) and Concertocare Medical Group Of California, P.C. (Huntington Beach, 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 Thomas Walker'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 Thomas Walker was last updated on March 2, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Mr. Thomas Patrick Walker, F.N.P. · NPI 1629521646
Family physician in San Diego, California. Individual provider, active in the CMS NPPES registry since July 26, 2016.
## Identity
- **NPI:** 1629521646 (Entity type: Individual)
- **Enumerated:** July 26, 2016
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 95004279 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 16745 W BERNARDO DR, San Diego, CA 92127-1907
- **Phone:** (858) 592-2000
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Seasons Medical Group Of California Incorporated (NPI 1790239473, San Diego, CA); Healthcare Partners Affiliates Medical Group (NPI 1891981502, Tustin, CA); Concertocare Medical Group Of California, P.C. (NPI 1922777259, Huntington Beach, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 2, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1629521646) · Data from the CMS NPPES public registry.