Quick answers
- Does Christian D. Clark accept Medicare assignment?
- Yes. Medicare's clinician data says Christian D. Clark accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Christian D. Clark see?
- In 2024, CMS data shows 694 Original Medicare patients and 5,277 services for Christian D. Clark. This counts Original Medicare only and measures volume, not quality.
- What is Christian D. Clark's NPI number?
- 1649223710. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Christian D. Clark, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 694 |
|---|---|
| Services billed to Medicare | 5,277 |
| Different services or procedures | 44 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)277 services
- Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)203 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)160 services
- Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)134 services
- Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month (99439)122 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol72%
- Arthritis47%
- Diabetes31%
- Ischemic heart disease27%
- Depression26%
Hospitals where Christian D. Clark works
Medicare's Facility Affiliation Data lists Christian D. Clark at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Bailey Medical Center, LLCOwasso, OK · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 370228
- MUSC Medical CenterCharleston, SC · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 420004
- Oklahoma Surgical Hospital, LLCTulsa, OK · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 370210
- Saint Francis Hospital Vinita, IncVinita, OK · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 370237
- Saint Francis Hospital, IncTulsa, OK · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 370091
Practice locations
Addresses where Christian D. Clark is enrolled with Medicare (CMS data updated October 2, 2026).
- 100 S Bliss AveTahlequah, OK 74464 (918) 458‑3100
- 10109 E 79th StTulsa, OK 74133 (918) 756‑4333
- 171 Ashley AveCharleston, SC 29425 (843) 792‑1414
- 4150 SE Adams RdBartlesville, OK 74006 (918) 438‑7050
Group practices
Medicare enrollment lists Christian D. Clark as a member of these groups (CMS data updated October 2, 2026).
- University Medical Associates of the Medical University of South Carol1,668 clinicians in the group
- Cherokee Nation449 clinicians in the group
- Creek Nation Hospital and Clinics365 clinicians in the group
- Adult Gastroenterology Associates Inc15 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Tahlequah
Clinicians with the same Medicare primary specialty in Tahlequah, OK — not a recommendation.
Other clinicians in University Medical Associates of the Medical University of South Carol
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Kansas School Of Med (kc/wich/sal) |
| Graduation year | 2003 (23 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1649223710 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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