Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

SARA WALKER PA-C
NPI 1740959550
Physician Assistant in San Diego, CA

Q: What is Sara Walker's NPI number?

The NPI number for Sara Walker is 1740959550. It was assigned to this individual provider in the NPPES registry on September 7, 2021. The provider is also known as Sara A Lopez Pa-C.

Q: What is Sara Walker's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Q: When was this NPI record last updated?

The NPPES record for Sara Walker was last updated on July 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 days 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.

Active since September 07, 2021PECOS EnrolledAccepts Medicare Assignment

200 W ARBOR DR, SAN DIEGO, CA 92103(800) 926-8273(888) 539-8781 Get Directions Write a Review

NPPES record last updated: July 7, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 7, 2026, Mar 19, 2026, Sep 17, 2025 and 2 more (5 updates tracked since 2021).

On this page

About Sara Walker Pa-c NPPES

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

SARA WALKER PA-C (NPI 1740959550) is an individual physician assistant in San Diego, California, licensed in California (67677) and active in the NPI registry since September 2021. She is enrolled in Medicare PECOS, is affiliated with Asante Three Rivers Medical Center, and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1740959550

Entity TypeIndividualFemale

Primary Taxonomy363A00000X

Provider Legal NameSARA WALKERCredential: PA-C

Location Address200 W ARBOR DRSan Diego, CA 92103-9000

Mailing AddressFile 57326Los Angeles, CA 90074-7326 · (800) 926-8273

Phone(800) 926-8273

Fax(888) 539-8781

Sole ProprietorNo

Medical School CMSOtherGraduated 2021

Enumeration DateSeptember 7, 2021

Last NPPES UpdateJuly 7, 20265 updates tracked since enumeration

NPPES CertifiedJuly 7, 2026

✔ NPI 1740959550 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363A00000X

License✔ Licensed in CA · 67677

Definition

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

200 W ARBOR DR, San Diego, CA 92103

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Other Names 1

Former Name (1)Sara A Lopez Pa-c

Secondary Practice Locations 4

Location 14250 1st AveSan Diego, CA 92103-2026 · Phone (800) 926-8273 · Fax (888) 539-8781

Location 2510 SW Ramsey AveGrants Pass, OR 97527-5554 · Phone (541) 789-4673 · Fax (541) 789-2121

Location 33855 Health Sciences DrLA Jolla, CA 92093-1503 · Phone (800) 926-8273 · Fax (888) 539-8781

Location 43011 E Barnett RdMedford, OR 97504 · Phone (541) 789-4673 · Fax (541) 789-2121

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Moda Health Plan, Inc., Providence Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Sara Walker Pa-c 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.

PECOS PAC ID6800284563

PECOS Enrollment IDI20260430002903

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.

Areas of Expertise CMS Part B claims 6

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

523 services284 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

61 services50 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

46 services37 patients

Biopsy and aspiration of bone marrow sample for diagnosis 38222

A bone marrow biopsy and aspiration is a procedure where a small amount of bone marrow is removed for testing. It involves inserting a needle into a bone, typically the hip, to collect a sample. It can help diagnose various diseases and monitor treatment effectiveness.

26 services25 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

19 services19 patients

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

13 services13 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Asante Three Rivers Medical Center

Acute Care Hospitals · Grants Pass, OR

5/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number380002

Location500 SW Ramsey AvenueGrants Pass, OR 97527 · Josephine County

Emergency services Birthing friendly

Asante Ashland Community Hospital

Acute Care Hospitals · Ashland, OR

OwnershipGovernment - Local

CMS Certification Number380005

Location280 Maple StreetAshland, OR 97520 · Jackson County

Emergency services Birthing friendly

Asante Rogue Regional Medical Center

Acute Care Hospitals · Medford, OR

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number380018

Location2825 E Barnett RoadMedford, OR 97504 · Jackson County

Emergency services Birthing friendly

Providence Medford Medical Center

Acute Care Hospitals · Medford, OR

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number380075

Location1111 Crater Lake AvenueMedford, OR 97504 · Jackson County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92103 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

$94.87 typical visit price

range $62.10 – $184.71

Typical copayment $23.71 (range $15.52 – $46.17)

Most-billed visit code 99203

Established Patient

$76.87 typical visit price

range $20.62 – $151.42

Typical copayment $19.21 (range $5.15 – $37.85)

Most-billed visit code 99213

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.

DR. RAMIN MOTARJEMI M.D.

Internal Medicine (Geriatric Medicine)