Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

William J. Friedrich, DO

Individual provider Family Medicine Physician · NPI 1417921479

William J. Friedrich, DO practises Emergency Medicine in San Antonio, Texas. Qualified in 1993, 33 years ago. Practices with Concord Medical Group of Texas PLLC, a 317-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
33
Licensed in
TX
In the registry since
2006
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1518 Hearthstone
San Antonio, TX 78258
Phone: (210) 408-2079
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence J6440 (TX)
Family Medicine Physician Taxonomy 207Q00000X · Licence J6440 (TX)

Record details

NPI number1417921479
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedFebruary 15, 2006
Last updated in NPPESMay 20, 2020
Certification dateMay 20, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Also practisesFAMILY PRACTICE
Medical schoolOTHER
Graduated 1993 (33 years in practice)
Group practice Concord Medical Group Of Texas Pllc — 317 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients16
Services billed 20 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Baptist Neighborhood Hospital Thousand Oaks Hospital · San Antonio, TX

Colleagues at Concord Medical Group of Texas PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 317 clinicians in the practice; 12 are shown here.

Other providers in San Antonio