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WILLIAM R SHIRER M.D.
NPI 1912438854
Anesthesiology in San Jose, CA

Active since March 22, 2017PECOS EnrolledAccepts Medicare Assignment
250 HOSPITAL PKWY, SAN JOSE, CA 95119(408) 972-3000 Get Directions Write a Review

NPPES record last updated: August 1, 2022. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 1, 2022, Jun 23, 2021, Mar 22, 2017 (3 updates tracked since 2017).

About William R Shirer M.d. NPPES

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

WILLIAM R SHIRER M.D. (NPI 1912438854) is an individual anesthesiology provider in San Jose, California, licensed in California (A157296) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Stanford University School Of Medicine (2017).

NPPES Registry Identity

NPI1912438854
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameWILLIAM R SHIRERCredential: M.D.
Location Address250 HOSPITAL PKWYSan Jose, CA 95119-1103
Mailing Address250 Hospital PkwySan Jose, CA 95119-1103 · (408) 972-3000
Phone(408) 972-3000
Sole ProprietorNo
Medical School CMSStanford University School Of MedicineGraduated 2017
Enumeration DateMarch 22, 2017
Last NPPES UpdateAugust 1, 20223 updates tracked since enumeration
NPPES CertifiedJune 17, 2022
✔ NPI 1912438854 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · A157296
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
250 HOSPITAL PKWY, San Jose, CA 95119
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Secondary Practice Locations 2

Location 1751 S Bascom AveSan Jose, CA 95128-2604 · Phone (408) 885-5110
Location 2300 Pasteur DrStanford, CA 94305-2200 · Phone (650) 723-4000

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

William R Shirer M.d. 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 ID7416357397
PECOS Enrollment IDI20210615000665
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.

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.

MRS. JOANNE DELOSREYES PHO P.T.
Physical Therapist
250 HOSPITAL PKWY
SAN JOSE, CA 95119
Santa Clara County (408) 972-7236
ASSEFA WORKU MD
Internal Medicine
250 HOSPITAL PKWY, 260 INTERNATIONAL CIRCLE
SAN JOSE, CA 95119
Santa Clara County (408) 972-7000
THOMAS ALEC SA
Physical Therapist
250 HOSPITAL PKWY
SAN JOSE, CA 95119
Santa Clara County (408) 972-6400
ANGELA ANQI SONG
Psychiatry & Neurology (Psychiatry)
250 HOSPITAL PKWY
SAN JOSE, CA 95119
Santa Clara County (408) 972-3000
SHAMSHER SINGH MD
Family Medicine
250 HOSPITAL PKWY
SAN JOSE, CA 95119
Santa Clara County (408) 972-3000
EVON NHU GIA DU PHARMD
Pharmacist
250 HOSPITAL PKWY
SAN JOSE, CA 95119
Santa Clara County (626) 509-0616
DR. FRANCIS DOMINIC WONG D.O
Anesthesiology (Pain Medicine)
250 HOSPITAL PKWY
SAN JOSE, CA 95119
Santa Clara County (408) 972-3000
KATHERINE HONG NGUYEN PHARMD
Pharmacist (Psychiatric)
250 HOSPITAL PKWY
SAN JOSE, CA 95119
Santa Clara County (408) 972-3000

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 William Shirer's NPI number?

The NPI number for William Shirer is 1912438854. It was assigned to this individual provider in the NPPES registry on March 22, 2017.

Where is William Shirer located?

William Shirer practices at 250 Hospital Pkwy, San Jose, CA 95119. The listed phone number is (408) 972-3000.

What is William Shirer's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is William Shirer enrolled in Medicare?

Yes. William Shirer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for William Shirer was last updated on August 1, 2022. 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.