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WILLIAM H. BIRDSONG IV MD
NPI 1447338512
Emergency Medicine in Oakland, CA

Active since November 02, 2006PECOS Enrolled
661 VIA RIALTO, OAKLAND, CA 94619(510) 808-4030 Get Directions Write a Review

NPPES record last updated: December 22, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 22, 2021, Feb 14, 2019 (2 updates tracked since 2019).

About William H. Birdsong Iv Md NPPES

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

WILLIAM H. BIRDSONG IV MD (NPI 1447338512) is an individual emergency medicine provider in Oakland, California, licensed in California (A75881) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1447338512
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameWILLIAM H. BIRDSONG IVCredential: MD
Location Address661 VIA RIALTOOakland, CA 94619-3149
Mailing Address1425 S Main StWalnut Creek, CA 94596-5318 · (925) 295-4000
Phone(510) 808-4030
Sole ProprietorNo
Enumeration DateNovember 2, 2006
Last NPPES UpdateDecember 22, 20212 updates tracked since enumeration
✔ NPI 1447338512 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · A75881
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
661 VIA RIALTO, Oakland, CA 94619
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Other Identifiers 1

Medicaid00A758810CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William H. Birdsong Iv 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 William Birdsong reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
14 mi
Internal Medicine
901 NEVIN
Richmond, CA 94801
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1235226531 (510) 307-1555

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

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.

Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
17 services17 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94619 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.

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 Birdsong's NPI number?

The NPI number for William Birdsong is 1447338512. It was assigned to this individual provider in the NPPES registry on November 2, 2006.

Where is William Birdsong located?

William Birdsong practices at 661 Via Rialto, Oakland, CA 94619. The listed phone number is (510) 808-4030.

What is William Birdsong's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is William Birdsong enrolled in Medicare?

Yes. William Birdsong is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for William Birdsong's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Birdsong reassigns Medicare benefits to Permanente Medical Group Inc (Richmond, 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 William Birdsong'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 William Birdsong was last updated on December 22, 2021. 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.