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DR. WILLIAM DAVIS THORNTON JR. M.D.
NPI 1477536340
Anesthesiology in San Antonio, TX

Active since November 23, 2005PECOS Enrolled
45 NE LOOP 410, SUITE 900, SAN ANTONIO, TX 78216(210) 375-7790 Get Directions Write a Review

NPPES record last updated: July 16, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. William Davis Thornton Jr. M.d. NPPES

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

DR. WILLIAM DAVIS THORNTON JR. M.D. (NPI 1477536340) is an individual anesthesiology provider in San Antonio, Texas, licensed in Texas (L4761) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1477536340
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. WILLIAM DAVIS THORNTON JR.Credential: M.D.
Location Address45 NE LOOP 410, SUITE 900San Antonio, TX 78216-5832
Mailing Address45 N.e. Loop 410 #900San Antonio, TX 78216 · (210) 375-7790
Phone(210) 375-7790
Sole ProprietorNo
Enumeration DateNovember 23, 2005
Last NPPES UpdateJuly 16, 2007
✔ NPI 1477536340 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in TX · L4761
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
45 NE LOOP 410, San Antonio, TX 78216
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Other Identifiers 2

Medicare ID-Type Unspecified8A5804TX · Medicare
Medicare UPINH81481TX

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, Oscar Insurance Company.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 Davis Thornton Jr. M.d. 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

4

Medicare enrollment records show William Thornton reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Tejas Anesthesia PLLC
6.3 mi
Anesthesiology
18518 HARDY OAK BLVD STE 100
San Antonio, TX 78258
  • Reassigned Medicare billing, Texas enrollment
  • 226 clinicians in this Medicare group
NPI 1659027910 (210) 880-9897
U. S. Anesthesia Partners Of Texas, P.A.,
177 mi
Anesthesiology
1500 CITYWEST BLVD, SUITE 300
Houston, TX 77042
  • Reassigned Medicare billing, Texas enrollment
  • Medicare enrollment name: U S Anesthesia Partners Of Texas, PA
  • 3,804 clinicians in this Medicare group
NPI 1548208564 (877) 361-1809
Emergenchealth PLLC
228 mi
Anesthesiology
4100 INTERNATIONAL PLZ STE 800
Fort Worth, TX 76109
  • Reassigned Medicare billing, Texas enrollment
  • 1,612 clinicians in this Medicare group
NPI 1467970897 (972) 861-1270
Orthomed Staffing LLC
257 mi
Anesthesiology
15305 DALLAS PKWY STE 900
Addison, TX 75001
  • Reassigned Medicare billing, Texas enrollment
  • 513 clinicians in this Medicare group
NPI 1225514276 (469) 863-9978

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for lens surgery 00142
Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.
234 services195 patients
Anesthesia for retinal surgery 00145
Anesthesia for retinal surgery involves using medications to numb your eye and surrounding area. This prevents pain and discomfort during the procedure. You may also receive medication to help you relax. The anesthesia can be local (just your eye) or general (you're asleep).
223 services205 patients
Anesthesia for procedure on eyelid 00103
Anesthesia for an eyelid procedure helps ensure comfort and painlessness during the operation. It's typically a local anesthetic, applied to numb your eyelid and surrounding area. You'll likely be awake but won't feel any discomfort. It's a safe, routine part of many eye procedures.
55 services54 patients
Anesthesia for other procedure on lower leg, ankle, and foot bones 01480
Anesthesia for procedures on lower leg, ankle, and foot bones involves administering medication to block pain and sensation in these areas. This allows doctors to perform necessary treatments or surgeries without causing discomfort. The type of anesthesia used can vary based on the specific procedure.
23 services22 patients
Anesthesia for other procedure on eye 00140
Anesthesia for an eye procedure involves administering medication to numb your eye and surrounding area, ensuring you feel no pain during the operation. It can be local (only the eye area) or general (whole body). It's safe and helps make the procedure comfortable.
19 services17 patients
Anesthesia for other procedure on nose and sinuses 00160
Anesthesia for procedures on the nose and sinuses involves administering medication to block sensation, ensuring comfort during the procedure. It can be local (numbing a specific area) or general (you're asleep). This helps prevent pain and discomfort during the procedure.
11 services11 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Post-Anesthetic Transfer of Care Measure: Procedure Room to a Post Anesthesia Care Unit (PACU)
Percentage of patients, regardless of age, who are under the care of an anesthesia practitioner and are admitted to a PACU or other non-ICU location in which a post-anesthetic formal transfer of care protocol or checklist which includes the key transfer of…
100%938 patients5/55-star benchmark: 100%
Prevention of Post-Operative Nausea and Vomiting (PONV) - Combination Therapy
Percentage of patients, aged 18 years and older, who undergo a procedure under an inhalational general anesthetic, AND who have three or more risk factors for post-operative nausea and vomiting (PONV), who receive combination therapy consisting of at least…
100%402 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

DR. KEITH NEAL SUMNER M.D.
Anesthesiology
45 NE LOOP 410, SUITE 900
SAN ANTONIO, TX 78216
Bexar County (210) 375-7760
COURTNEY LUTZ
Physical Therapist
45 NE LOOP 410
SAN ANTONIO, TX 78216
Bexar County (210) 457-2000
TARA S FROST M.D.
Anesthesiology
45 NE LOOP 410, SUITE 900
SAN ANTONIO, TX 78216
Bexar County (210) 375-7790
VAUCHERIA CARTER-RUBENSTEIN MD
Anesthesiology
45 NE LOOP 410, SUITE 900
SAN ANTONIO, TX 78216
Bexar County (210) 375-7790
DR. BETTY JON HEALY M.D.
Anesthesiology
45 NE LOOP 410, SUITE 900
SAN ANTONIO, TX 78216
Bexar County (210) 375-7730
DR. CLAIRE KLINE HOLSHOUSER M.D.
Anesthesiology
45 NE LOOP 410
SAN ANTONIO, TX 78216
Bexar County (210) 375-7730
DR. ALEXANDRIA ELIZABETH RUDD M.D.
Anesthesiology
45 NE LOOP 410, SUITE 900
SAN ANTONIO, TX 78216
Bexar County (210) 375-7780
DR. RYAN COLBY RICHARDS M.D.
Anesthesiology
45 NE LOOP 410, SUITE 900
SAN ANTONIO, TX 78216
Bexar County (210) 375-7790

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 Thornton's NPI number?

The NPI number for William Thornton is 1477536340. It was assigned to this individual provider in the NPPES registry on November 23, 2005.

Where is William Thornton located?

William Thornton practices at 45 NE Loop 410 Suite 900, San Antonio, TX 78216. The listed phone number is (210) 375-7790.

What is William Thornton's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is William Thornton enrolled in Medicare?

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

Which organizations bill Medicare for William Thornton's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Thornton reassigns Medicare benefits to 4 organizations: Tejas Anesthesia PLLC (San Antonio, TX), U. S. Anesthesia Partners Of Texas, P.A., (Houston, TX), Emergenchealth PLLC (Fort Worth, TX) and Orthomed Staffing LLC (Addison, 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 Thornton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Thornton accept?

Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas and Oscar Insurance Company list William Thornton 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 Thornton was last updated on July 16, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.