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DR. TINA LEANNE WALKER M.D.
NPI 1871807784
Family Medicine in Yorba Linda, CA

Active since August 03, 2010PECOS Enrolled
22550 SAVI RANCH PKWY, YORBA LINDA, CA 92887(714) 685-3523(714) 685-3502 Get Directions Write a Review

NPPES record last updated: December 6, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Tina Leanne Walker M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. TINA LEANNE WALKER M.D. (NPI 1871807784) is an individual family medicine provider in Yorba Linda, California, licensed in California (A113377) and active in the NPI registry since August 2010. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1871807784
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. TINA LEANNE WALKERCredential: M.D.
Location Address22550 SAVI RANCH PKWYYorba Linda, CA 92887-4670
Mailing Address22550 Savi Ranch PkwyYorba Linda, CA 92887-4670 · (714) 685-3523 · Fax (714) 685-3502
Phone(714) 685-3523
Fax(714) 685-3502
Sole ProprietorNo
Enumeration DateAugust 3, 2010
Last NPPES UpdateDecember 6, 2021
✔ NPI 1871807784 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in CA · A113377
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
22550 SAVI RANCH PKWY, Yorba Linda, CA 92887
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Tina Leanne Walker M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Tina Walker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southern California Permanente Medical Group
4.5 mi
Health Maintenance Organization
441 N LAKEVIEW AVE
Anaheim, CA 92807
  • Reassigned Medicare billing, California enrollment
  • Also billed through NPI 1396287082 (California)
  • 13,921 clinicians in this Medicare group
NPI 1952333460 (714) 279-4000

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 92887 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

SHERRY LYNN GOMEZ
Registered Nurse
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Orange County (714) 685-3500
KAISER FOUNDATION HEALTH PLAN INC
Pharmacy (Community/Retail Pharmacy)
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Orange County (714) 685-3580
MARK SHIROMA
Pharmacist
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Orange County (714) 685-3580
DR. CYNTHIA TOY PHARM.D.
Pharmacist
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Orange County (714) 685-3725
DR. JASON SHEN MD
Family Medicine
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Orange County (714) 685-3633
MR. RONALD ALVIN WELCH PT
Physical Therapist (Orthopedic)
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Orange County (714) 685-3587
ARIANNE DEVI SHARMA DO
Family Medicine
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Orange County (909) 685-3600
DR. SILVESTER ROQUE LIM M.D.
Family Medicine
22550 SAVI RANCH PKWY
YORBA LINDA, CA 92887
Orange County (888) 988-2800

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 Tina Walker's NPI number?

The NPI number for Tina Walker is 1871807784. It was assigned to this individual provider in the NPPES registry on August 3, 2010.

Where is Tina Walker located?

Tina Walker practices at 22550 Savi Ranch Pkwy, Yorba Linda, CA 92887. The listed phone number is (714) 685-3523.

What is Tina Walker's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Tina Walker enrolled in Medicare?

Yes. Tina Walker is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Tina Walker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tina Walker reassigns Medicare benefits to Southern California Permanente Medical Group (Anaheim, 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 Tina 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 Tina Walker was last updated on December 6, 2021. 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.