Quick answers
- Which hospitals does William C. Clark Jr. work at?
- Medicare's official clinician data lists William C. Clark Jr. at 5 hospitals: Ascension St John Broken Arrow, Ascension St John Medical Center, Saint Francis Hospital, Inc, St John Owasso and Stillwater Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William C. Clark Jr. see patients?
- Medicare's clinician data lists 3 practice locations, including Tulsa, OK. Call before your visit to confirm the address.
- What is William C. Clark Jr.'s specialty?
- Medicare lists Orthopedic Surgery as the primary specialty.
- Does William C. Clark Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says William C. Clark Jr. accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for William C. Clark Jr.?
- (918) 744-2071, as listed in official Medicare / NPI Registry data.
- What is William C. Clark Jr.'s NPI number?
- 1962455725. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William C. Clark Jr. works
Medicare's Facility Affiliation Data lists William C. Clark Jr. at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension St John Broken ArrowBroken Arrow, OK · Acute Care Hospital · CCN 370235
- Ascension St John Medical CenterTulsa, OK · Acute Care Hospital · CCN 370114
- Saint Francis Hospital, IncTulsa, OK · Acute Care Hospital · CCN 370091
- St John OwassoOwasso, OK · Acute Care Hospital · CCN 370227
- Stillwater Medical CenterStillwater, OK · Acute Care Hospital · CCN 370049
Practice locations
Addresses where William C. Clark Jr. is enrolled with Medicare (CMS data updated 2026-10-02).
- 1705 E 19th StTulsa, OK 74104
- 1923 S Utica AveTulsa, OK 74104 (918) 744‑2071
- 1923 S Utica Ave, Medical Staff OfficeTulsa, OK 74104
Group practices
Medicare enrollment lists William C. Clark Jr. as a member of this group (CMS data updated 2026-10-02).
- St. John Physicians, Inc.259 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Tulsa
Clinicians with the same Medicare primary specialty in Tulsa, OK — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Oklahoma College Of Medicine |
| Graduation year | 2001 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1962455725 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians