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DR. PHILIP A RUSH M.D.
NPI 1922023993
Pediatrics in Walnut Creek, CA

Active since July 12, 2006PECOS Enrolled
1844 SAN MIGUEL DR STE 310, WALNUT CREEK, CA 94596(925) 937-6000(925) 937-2823 Get Directions Write a Review

NPPES record last updated: February 27, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Feb 27, 2025, Sep 7, 2023 (2 updates tracked since 2023).

About Dr. Philip A Rush M.d. NPPES

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

DR. PHILIP A RUSH M.D. (NPI 1922023993) is an individual pediatrics provider in Walnut Creek, California, licensed in California (G28043) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1922023993
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameDR. PHILIP A RUSHCredential: M.D.
Location Address1844 SAN MIGUEL DR STE 310Walnut Creek, CA 94596-4963
Mailing Address1844 San Miguel Dr Ste 310Walnut Creek, CA 94596-4963 · (925) 937-6000 · Fax (925) 937-2823
Phone(925) 937-6000
Fax(925) 937-2823
Sole ProprietorNo
Enumeration DateJuly 12, 2006
Last NPPES UpdateFebruary 27, 20252 updates tracked since enumeration
NPPES CertifiedFebruary 27, 2025
✔ NPI 1922023993 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · G28043
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
1844 SAN MIGUEL DR STE 310, Walnut Creek, CA 94596
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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. Philip A Rush 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 Reassignments

2

Medicare enrollment records show Philip Rush reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

John Muir Physician Network
2.1 mi
General Practice
1450 TREAT BLVD, SUITE 300
Walnut Creek, CA 94597
  • Reassigned Medicare billing, California enrollment
  • 650 clinicians in this Medicare group
NPI 1841407665 (925) 296-9872
Bass Medical Group
2.3 mi
Orthopaedic Surgery
390 N WIGET LN STE 100
Walnut Creek, CA 94598
  • Reassigned Medicare billing, California enrollment
  • 347 clinicians in this Medicare group
NPI 1043616600 (925) 944-0110

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 94596 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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

GENEVIEVE RACHEL PALMER M.D.
Pediatrics
1844 SAN MIGUEL DR STE 310
WALNUT CREEK, CA 94596
Contra Costa County (925) 937-6000
DR. KATHARINE BROWN M.D.
Pediatrics
1844 SAN MIGUEL DR STE 310
WALNUT CREEK, CA 94596
Contra Costa County (925) 937-6000

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 Philip Rush's NPI number?

The NPI number for Philip Rush is 1922023993. It was assigned to this individual provider in the NPPES registry on July 12, 2006.

Where is Philip Rush located?

Philip Rush practices at 1844 San Miguel Dr Ste 310, Walnut Creek, CA 94596. The listed phone number is (925) 937-6000.

What is Philip Rush's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Philip Rush enrolled in Medicare?

Yes. Philip Rush is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Philip Rush's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Philip Rush reassigns Medicare benefits to 2 organizations: John Muir Physician Network (Walnut Creek, CA) and Bass Medical Group (Walnut Creek, 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 Philip Rush'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 Philip Rush was last updated on February 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.