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DR. WILLIAM AARON HOPPER MD
NPI 1063974475
Surgery - Vascular Surgery in San Antonio, TX

Active since April 03, 2019PECOS Enrolled
718 LEXINGTON AVE STE 102, SAN ANTONIO, TX 78212(210) 420-8671(210) 899-1958 Get Directions Write a Review

NPPES record last updated: August 14, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 14, 2026, Jul 24, 2026, Jun 2, 2026 and 1 more (4 updates tracked since 2019).

About Dr. William Aaron Hopper Md NPPES

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

DR. WILLIAM AARON HOPPER MD (NPI 1063974475) is an individual vascular surgery provider in San Antonio, Texas, licensed in Texas (W2299) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS and is a graduate of University Of Texas Medical School At San Antonio (2019).

NPPES Registry Identity

NPI1063974475
Entity TypeIndividualMale
Primary Taxonomy2086S0129X
Provider Legal NameDR. WILLIAM AARON HOPPERCredential: MD
Location Address718 LEXINGTON AVE STE 102San Antonio, TX 78212-4790
Mailing Address718 Lexington Ave Ste 102San Antonio, TX 78212-4790 · (210) 420-8671 · Fax (210) 899-1958
Phone(210) 420-8671
Fax(210) 899-1958
Sole ProprietorNo
Medical School CMSUniversity Of Texas Medical School At San AntonioGraduated 2019
Enumeration DateApril 3, 2019
Last NPPES UpdateAugust 14, 20264 updates tracked since enumeration
NPPES CertifiedAugust 14, 2026
✔ NPI 1063974475 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgery · Vascular SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0129X
License✔ Licensed in TX · W2299
Definition
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.
Also ListedSurgeryTaxonomy 208600000X · License W2299 (TX)
718 LEXINGTON AVE STE 102, San Antonio, TX 78212
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, UnitedHealthcare 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)

Dr. William Aaron Hopper Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8426592825
PECOS Enrollment IDI20260814002134
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 Hopper reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Texas Cardiac And Vascular Specialists PA
Same address
Vascular Surgery
718 LEXINGTON AVENUE, SUITE 102
San Antonio, TX 78212
  • Reassigned Medicare billing, Texas enrollment
  • 7 clinicians in this Medicare group
NPI 1447953351 (210) 420-8671

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 78212 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
$68.55 typical visit price
range $17.52 – $136.11
Typical copayment $17.13 (range $4.38 – $34.02)
Most-billed visit code 99213
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 2

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

MR. HASEEB ALI PA
Physician Assistant
718 LEXINGTON AVE STE 102
SAN ANTONIO, TX 78212
Bexar County (210) 420-8671
DR. JESUS MANUEL MATOS M.D.
Surgery (Vascular Surgery)
718 LEXINGTON AVE STE 102
SAN ANTONIO, TX 78212
Bexar County (210) 420-8671

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 Hopper's NPI number?

The NPI number for William Hopper is 1063974475. It was assigned to this individual provider in the NPPES registry on April 3, 2019.

Where is William Hopper located?

William Hopper practices at 718 Lexington Ave Ste 102, San Antonio, TX 78212. The listed phone number is (210) 420-8671.

What is William Hopper's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

Is William Hopper enrolled in Medicare?

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

Which organization bills Medicare for William Hopper's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Hopper reassigns Medicare benefits to Texas Cardiac And Vascular Specialists PA (San Antonio, TX). 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 Hopper's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Hopper accept?

Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, UnitedHealthcare and WellPoint list William Hopper 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 Hopper was last updated on August 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.