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WILLIAM J. FRIEDRICH DO
NPI 1417921479
Emergency Medicine in San Antonio, TX

Active since February 15, 2006PECOS Enrolled
1518 HEARTHSTONE, SAN ANTONIO, TX 78258(210) 408-2079 Get Directions Write a Review

NPPES record last updated: May 20, 2020. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About William J. Friedrich Do NPPES

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

WILLIAM J. FRIEDRICH DO (NPI 1417921479) is an individual emergency medicine provider in San Antonio, Texas, licensed in Texas (J6440) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1417921479
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameWILLIAM J. FRIEDRICHCredential: DO
Location Address1518 HEARTHSTONESan Antonio, TX 78258
Mailing Address1518 HearthstoneSan Antonio, TX 78258 · (210) 408-2079
Phone(210) 408-2079
Sole ProprietorYes
Enumeration DateFebruary 15, 2006
Last NPPES UpdateMay 20, 2020
NPPES CertifiedMay 20, 2020
✔ NPI 1417921479 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in TX · J6440
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.
Also ListedFamily MedicineTaxonomy 207Q00000X · License J6440 (TX)
1518 HEARTHSTONE, San Antonio, TX 78258
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Other Identifiers 2

Other0043NATX · Bcbs
Medicaid031167203TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Antidote Health of TX, Blue Cross and Blue Shield of Texas, Imperial Insurance Companies, Inc. and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William J. Friedrich Do 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 William Friedrich reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Third Coast Emergency Physicians Southwest PA
16 mi
Emergency Medicine
4103 NORTH LOOK 1604 W
San Antonio, TX 78249
  • Reassigned Medicare billing, Texas enrollment
  • 379 clinicians in this Medicare group
NPI 1497793475 (330) 493-4443
Concord Medical Group Of Texas PLLC
337 mi
Emergency Medicine
1602 AVENUE Q
Lubbock, TX 79401
  • Reassigned Medicare billing, Texas enrollment
  • 1,439 clinicians in this Medicare group
NPI 1750790762 (888) 264-0330

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 78258 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
$84.92 typical visit price
range $54.84 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
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 Friedrich's NPI number?

The NPI number for William Friedrich is 1417921479. It was assigned to this individual provider in the NPPES registry on February 15, 2006.

Where is William Friedrich located?

William Friedrich practices at 1518 Hearthstone, San Antonio, TX 78258. The listed phone number is (210) 408-2079.

What is William Friedrich's specialty?

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

Is William Friedrich enrolled in Medicare?

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

Which organizations bill Medicare for William Friedrich's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Friedrich reassigns Medicare benefits to 2 organizations: Third Coast Emergency Physicians Southwest PA (San Antonio, TX) and Concord Medical Group Of Texas PLLC (Lubbock, TX). 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 William Friedrich's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Friedrich accept?

Health plans from Antidote Health of TX, Blue Cross and Blue Shield of Texas, Imperial Insurance Companies, Inc. and UnitedHealthcare list William Friedrich as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Friedrich was last updated on May 20, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.