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

TIFFANY ASHLEY WILLIAMS CFNP
NPI 1972165314
Nurse Practitioner in San Antonio, TX

Active since July 06, 2019PECOS Enrolled
525 OAK CENTRE DR STE 350, SAN ANTONIO, TX 78258(210) 890-5444 Get Directions Write a Review

NPPES record last updated: July 15, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 15, 2026, Aug 15, 2024, Jul 26, 2021 and 2 more (5 updates tracked since 2019).

About Tiffany Ashley Williams Cfnp NPPES

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

TIFFANY ASHLEY WILLIAMS CFNP (NPI 1972165314) is an individual nurse practitioner in San Antonio, Texas, licensed in Texas (AP141825) and active in the NPI registry since July 2019. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1972165314
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameTIFFANY ASHLEY WILLIAMSCredential: CFNP
Location Address525 OAK CENTRE DR STE 350San Antonio, TX 78258-3945
Mailing AddressPo Box 5730Belfast, ME 04915-5700 · (888) 402-7256
Sole ProprietorNo
Enumeration DateJuly 6, 2019
Last NPPES UpdateJuly 15, 20265 updates tracked since enumeration
NPPES CertifiedJuly 15, 2026
NPI 1972165314 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License Licensed in TX · AP141825
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
525 OAK CENTRE DR STE 350, San Antonio, TX 78258

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)

Tiffany Ashley Williams Cfnp 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.

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.

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Otolaryngology (Pediatric Otolaryngology)
525 OAK CENTRE DR STE 350
SAN ANTONIO, TX 78258
Family Medicine
525 OAK CENTRE DR STE 350
SAN ANTONIO, TX 78258
Nurse Practitioner (Pediatrics)
525 OAK CENTRE DR STE 350
SAN ANTONIO, TX 78258
Surgery
525 OAK CENTRE DR STE 350
SAN ANTONIO, TX 78258
Nurse Practitioner (Family)
525 OAK CENTRE DR STE 350
SAN ANTONIO, TX 78258
Durable Medical Equipment & Medical Supplies
525 OAK CENTRE DR STE 350
SAN ANTONIO, TX 78258
Otolaryngology (Pediatric Otolaryngology)
525 OAK CENTRE DR STE 350
SAN ANTONIO, TX 78258

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 Tiffany Williams's NPI number?

The NPI number for Tiffany Williams is 1972165314. It was assigned to this individual provider in the NPPES registry on July 6, 2019.

Where is Tiffany Williams located?

Tiffany Williams practices at 525 Oak Centre Dr Ste 350, San Antonio, TX 78258. The listed phone number is (210) 890-5444.

What is Tiffany Williams's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Tiffany Williams enrolled in Medicare?

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

What insurance does Tiffany Williams accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 5 other insurers list Tiffany 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 Tiffany Williams was last updated on July 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 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.