Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. HOLLY LYNN WILLIAMS MD
NPI 1346256567
Surgery - Pediatric Surgery in San Antonio, TX

Active since July 31, 2006PECOS Enrolled
333 N SANTA ROSA, SAN ANTONIO, TX 78207(210) 704-3030 Get Directions Write a Review

NPPES record last updated: September 3, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Sep 3, 2026, Aug 20, 2026, Apr 15, 2022 and 3 more (6 updates tracked since 2019).

About Dr. Holly Lynn Williams Md NPPES

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

DR. HOLLY LYNN WILLIAMS MD (NPI 1346256567) is an individual pediatric surgery provider in San Antonio, Texas, licensed in Texas (L6216) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of University Of California, San Francisco School Of Medicine (1993).

NPPES Registry Identity

NPI1346256567
Entity TypeIndividualFemale
Primary Taxonomy2086S0120X
Provider Legal NameDR. HOLLY LYNN WILLIAMSCredential: MD
Location Address333 N SANTA ROSASan Antonio, TX 78207-3108
Mailing Address1 Captain Dr Unit 359Emeryville, CA 94608-1726 · (559) 573-4817
Sole ProprietorNo
Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 1993
Enumeration DateJuly 31, 2006
Last NPPES UpdateSeptember 3, 20266 updates tracked since enumeration
NPPES CertifiedSeptember 3, 2026
NPI 1346256567 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtySurgery · Pediatric SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0120X
Licenses Licensed in TX · L6216 Licensed in IN · 01082032A Licensed in MD · D0053376 Licensed in CA · G80966
Definition
A surgeon with expertise in the management of surgical conditions in premature and newborn infants, children and adolescents.
Also ListedPediatricsTaxonomy 208000000X · License L6216 (TX)
Also ListedSurgeryTaxonomy 208600000X · License L6216 (TX)
333 N SANTA ROSA, San Antonio, TX 78207

Secondary Practice Locations 3

Location 111123 Parkview Plaza Dr Ste 201Fort Wayne, IN 46845-1707 · Phone (260) 425-5950 · Fax (260) 425-5165
Location 26235 N Fresno St, Ste 106, Valley Pediatric Surgery AssociatesFresno, CA 93710 · Phone (559) 440-9740 · Fax (559) 440-9771
Location 34845 Alameda AveEl Paso, TX 79905-2705 · Phone (915) 298-5444

Other Identifiers 2

Medicaid015123800MD
Medicaid27-0271872CA

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Dr. Holly Lynn Williams Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1355393927
PECOS Enrollment IDI20260522001667
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.

Pediatrics (Pediatric Hematology-Oncology)
333 N SANTA ROSA
SAN ANTONIO, TX 78207
Pediatrics (Pediatric Emergency Medicine)
333 N SANTA ROSA
SAN ANTONIO, TX 78207
Nurse Practitioner (Pediatrics, Critical Care)
333 N SANTA ROSA
SAN ANTONIO, TX 78207
Pediatrics
333 N SANTA ROSA
SAN ANTONIO, TX 78207
Student in an Organized Health Care Education/Training Program
333 N SANTA ROSA
SAN ANTONIO, TX 78207
Pediatrics
333 N SANTA ROSA
SAN ANTONIO, TX 78207
Obstetrics & Gynecology (Maternal & Fetal Medicine)
333 N SANTA ROSA
SAN ANTONIO, TX 78207
Clinical Neuropsychologist
333 N SANTA ROSA
SAN ANTONIO, TX 78207

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 Holly Williams's NPI number?

The NPI number for Holly Williams is 1346256567. It was assigned to this individual provider in the NPPES registry on July 31, 2006.

Where is Holly Williams located?

Holly Williams practices at 333 N Santa Rosa, San Antonio, TX 78207. The listed phone number is (210) 704-3030.

What is Holly Williams's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Pediatric Surgery, with taxonomy code 2086S0120X.

Is Holly Williams enrolled in Medicare?

Yes. Holly Williams is registered in the Medicare PECOS enrollment system.

What insurance does Holly Williams accept?

Health plans from CareSource list Holly Williams 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 Holly Williams was last updated on September 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 days 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.