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ALLEN DOUGLAS OBRINSKY MD
NPI 1831180132
Pediatrics in San Ramon, CA

Active since November 04, 2005PECOS Enrolled
200 PORTER DR, SUITE 300, SAN RAMON, CA 94583(925) 838-6500(925) 838-6542 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Allen Douglas Obrinsky Md NPPES

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

ALLEN DOUGLAS OBRINSKY MD (NPI 1831180132) is an individual pediatrics provider in San Ramon, California, licensed in California (G61060) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1831180132
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameALLEN DOUGLAS OBRINSKYCredential: MD
Location Address200 PORTER DR, SUITE 300San Ramon, CA 94583-1587
Mailing Address200 Porter Dr, Suite 300San Ramon, CA 94583-1587 · (925) 838-6511 · Fax (925) 838-6544
Phone(925) 838-6500
Fax(925) 838-6542
Sole ProprietorNo
Enumeration DateNovember 4, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1831180132 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · G61060
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.
200 PORTER DR, San Ramon, CA 94583
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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)

Allen Douglas Obrinsky Md 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 Allen Obrinsky reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

John Muir Physician Network
11 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

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 94583 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 20

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

JULIE ANN CHOATE PT
Physical Therapist
200 PORTER DR, SUITE 101
SAN RAMON, CA 94583
Contra Costa County (925) 838-1550
DR. KEVIN EUGENE FRIDIE M.D.
Anesthesiology
200 PORTER DR, SUITE 100
SAN RAMON, CA 94583
Contra Costa County (925) 838-6880
KYLE HENDERSON
Physician Assistant
200 PORTER DR, SUITE 215
SAN RAMON, CA 94583
Contra Costa County (925) 362-2111
SAN RAMON PRIMARY CARE MEDICAL GROUP INC
Internal Medicine
200 PORTER DR, STE 300
SAN RAMON, CA 94583
Contra Costa County (925) 838-6500
SUSAN SOLAR PERS PA-C
Physician Assistant
200 PORTER DR
SAN RAMON, CA 94583
Contra Costa County (925) 838-2108
CLAUDINE CHO PNP
Nurse Practitioner (Pediatrics)
200 PORTER DR, SUITE 300
SAN RAMON, CA 94583
Contra Costa County (626) 833-8280
SAN RAMON SURGERY CENTER, LP
Clinic/Center (Ambulatory Surgical)
200 PORTER DR, STE. 100
SAN RAMON, CA 94583
Contra Costa County (925) 838-6880
LAURA HEATHER ANAYA PA
Physician Assistant
200 PORTER DR, SUITE 200
SAN RAMON, CA 94583
Contra Costa County (925) 838-2108

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 Allen Obrinsky's NPI number?

The NPI number for Allen Obrinsky is 1831180132. It was assigned to this individual provider in the NPPES registry on November 4, 2005.

Where is Allen Obrinsky located?

Allen Obrinsky practices at 200 Porter Dr Suite 300, San Ramon, CA 94583. The listed phone number is (925) 838-6500.

What is Allen Obrinsky's specialty?

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

Is Allen Obrinsky enrolled in Medicare?

Yes. Allen Obrinsky is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Allen Obrinsky's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Allen Obrinsky reassigns Medicare benefits to John Muir Physician Network (Walnut Creek, 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 Allen Obrinsky'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 Allen Obrinsky was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.