ALLISON BAYER PA-C
NPI 1437141165
Physician Assistant in Pleasanton, CA

Q: What is Allison Bayer's NPI number?

The NPI number for Allison Bayer is 1437141165. It was assigned to this individual provider in the NPPES registry on August 18, 2005.

Q: What is Allison Bayer'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 Allison Bayer was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.

Active since August 18, 2005PECOS EnrolledAccepts Medicare Assignment

4725 1ST ST STE 100, PLEASANTON, CA 94566(925) 734-3333 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Allison Bayer Pa-c NPPES

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

ALLISON BAYER PA-C (NPI 1437141165) is an individual physician assistant in Pleasanton, California, licensed in California (66341) and active in the NPI registry since August 2005. She is enrolled in Medicare PECOS, is affiliated with Beth Israel Deaconess Medical Center, and is a graduate of Baylor College Of Medicine (1997).

NPPES Registry Identity

NPI1437141165

Entity TypeIndividualFemale

Primary Taxonomy363A00000X

Provider Legal NameALLISON BAYERCredential: PA-C

Location Address4725 1ST ST STE 100Pleasanton, CA 94566-7366

Mailing Address4725 1st St Ste 100Pleasanton, CA 94566-7366 · (925) 734-3333

Phone(925) 734-3333

Sole ProprietorNo

Medical School CMSBaylor College Of MedicineGraduated 1997

Enumeration DateAugust 18, 2005

Last NPPES UpdateSeptember 11, 2025

NPPES CertifiedSeptember 11, 2025

✔ NPI 1437141165 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363A00000X

Licenses✔ Licensed in CA · 66341✔ Licensed in MA · 1274

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.

4725 1ST ST STE 100, Pleasanton, CA 94566

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.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

Allison Bayer 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 ID143389189

PECOS Enrollment IDI20081106000163, I20250715001499

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.

Hospital Affiliations CMS Care Compare

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

Beth Israel Deaconess Medical Center

Acute Care Hospitals · Boston, MA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220086

Location330 Brookline AvenueBoston, MA 02215 · Suffolk County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94566 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

$84.91 typical visit price

range $23.44 – $166.46

Typical copayment $21.22 (range $5.86 – $41.61)

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 9

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

ALEXANDRIAH NICOLE ALAS MD

Obstetrics & Gynecology