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WILLIAM SHADDOCK II M.D.
NPI 1194174342
Anesthesiology in San Antonio, TX

Active since June 08, 2016PECOS EnrolledAccepts Medicare Assignment
7703 FLOYD CURL DR, SAN ANTONIO, TX 78229(210) 567-7000 Get Directions Write a Review

NPPES record last updated: July 2, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About William Shaddock Ii M.d. NPPES

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

WILLIAM SHADDOCK II M.D. (NPI 1194174342) is an individual anesthesiology provider in San Antonio, Texas, licensed in Texas (S6037) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS, is affiliated with Hca Houston Healthcare Conroe, and is a graduate of University Of Texas Medical School At San Antonio (2020).

NPPES Registry Identity

NPI1194174342
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameWILLIAM SHADDOCK IICredential: M.D.
Location Address7703 FLOYD CURL DRSan Antonio, TX 78229-3901
Mailing Address18823 Edwards EdgeSan Antonio, TX 78256-1903 · (832) 610-4131
Phone(210) 567-7000
Sole ProprietorNo
Medical School CMSUniversity Of Texas Medical School At San AntonioGraduated 2020
Enumeration DateJune 8, 2016
Last NPPES UpdateJuly 2, 2020
NPPES CertifiedJuly 2, 2020
✔ NPI 1194174342 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in TX · S6037
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.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License BP10057319 (TX)
7703 FLOYD CURL DR, San Antonio, TX 78229
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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, Molina Healthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

William Shaddock Ii M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7517258619
PECOS Enrollment IDI20200713001553
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

2

Medicare enrollment records show William Shaddock reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Texas Anesthesia Team PLLC
1.1 mi
Anesthesiology
8706 FREDERICKSBURG RD STE 104
San Antonio, TX 78240
  • Reassigned Medicare billing, Texas enrollment
  • 116 clinicians in this Medicare group
NPI 1467037937 (210) 764-6819
Independent Physicians Network PLLC
250 mi
Anesthesiology
3625 N HALL ST # 800
Dallas, TX 75219
  • Reassigned Medicare billing, Texas enrollment
  • 495 clinicians in this Medicare group
NPI 1396274676 (214) 252-3500

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

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 other procedure on mouth 00170
Anesthesia for a mouth procedure involves administering medication to prevent pain during the treatment. It could be local, numbing a specific area, or general, where you're unconscious. It ensures a comfortable, pain-free experience during your dental or oral surgery.
17 services17 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Hca Houston Healthcare Conroe

Acute Care Hospitals · Conroe, TX
2/5 CMS rating
OwnershipProprietary
CMS Certification Number450222
Location504 Medical Center BlvdConroe, TX 77304 · Montgomery County
Emergency services Birthing friendly

Hca Houston Healthcare Kingwood

Acute Care Hospitals · Kingwood, TX
3/5 CMS rating
OwnershipProprietary
CMS Certification Number450775
Location22999 Us Hwy 59Kingwood, TX 77325 · Harris County
Emergency services Birthing friendly

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.

DANIEL TRAVIS HART CRNA
Nurse Anesthetist, Certified Registered
7703 FLOYD CURL DR
SAN ANTONIO, TX 78229
Bexar County (210) 567-0811
KENDALL HULK DO
Physical Medicine & Rehabilitation
7703 FLOYD CURL DR
SAN ANTONIO, TX 78229
Bexar County (210) 567-7000
TATE KICKHOEFER
Student in an Organized Health Care Education/Training Program
7703 FLOYD CURL DR
SAN ANTONIO, TX 78229
Bexar County (214) 498-9010
DR. JOSEPH DUMBUYA DMD, MPH
Student in an Organized Health Care Education/Training Program
7703 FLOYD CURL DR
SAN ANTONIO, TX 78229
Bexar County (301) 675-2866
GRACE COOPER MD
Emergency Medicine
7703 FLOYD CURL DR
SAN ANTONIO, TX 78229
Bexar County (210) 450-6400
ALISSA HERRERA MD
Student in an Organized Health Care Education/Training Program
7703 FLOYD CURL DR
SAN ANTONIO, TX 78229
Bexar County (210) 567-4621
TYLER YOUNG MD
Student in an Organized Health Care Education/Training Program
7703 FLOYD CURL DR
SAN ANTONIO, TX 78229
Bexar County (210) 567-7000
JACOB TERRY
Student in an Organized Health Care Education/Training Program
7703 FLOYD CURL DR
SAN ANTONIO, TX 78229
Bexar County (210) 567-7000

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 Shaddock's NPI number?

The NPI number for William Shaddock is 1194174342. It was assigned to this individual provider in the NPPES registry on June 8, 2016.

Where is William Shaddock located?

William Shaddock practices at 7703 Floyd Curl Dr, San Antonio, TX 78229. The listed phone number is (210) 567-7000.

What is William Shaddock's specialty?

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

Is William Shaddock enrolled in Medicare?

Yes. William Shaddock is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for William Shaddock's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Shaddock reassigns Medicare benefits to 2 organizations: Texas Anesthesia Team PLLC (San Antonio, TX) and Independent Physicians Network PLLC (Dallas, 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 Shaddock's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Shaddock accept?

Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas and Molina Healthcare list William Shaddock 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.

Is William Shaddock affiliated with any hospitals?

According to CMS data, William Shaddock is affiliated with Hca Houston Healthcare Conroe and Hca Houston Healthcare Kingwood.

When was this NPI record last updated?

The NPPES record for William Shaddock was last updated on July 2, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.