Christian Clark, MD
NPI 1649223710 · Gastroenterology Physician · Tulsa, OK
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christian Clark, MD is a Gastroenterology Physician provider in Tulsa, OK (NPI 1649223710).
Provider details
- NPI number
- 1649223710
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 27511 (OK)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,519 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 277 | $53 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 203 | $232 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 160 | $117 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 134 | $58 |
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 122 | $44 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sod Picosulf/Mag Ox/Citric Acbrand: Clenpiq | 69 | 69 |
| Peg3350/Sod Sul/Nacl/Kcl/Asb/Cbrand: Plenvu | 61 | 59 |
| Pantoprazole Sodium | 51 | 22 |
| Peg 3350/Sod Sulf,chlr/Pot/Magbrand: Suflave | 51 | 48 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 47 | 47 |
| Omeprazole | 29 | 21 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$644 across 39 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-18
- Last updated
- 2016-03-29
Frequently asked questions
- What is Christian Clark's NPI number?
- Christian Clark's National Provider Identifier (NPI) is 1649223710, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christian Clark's specialty?
- Christian Clark is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Christian Clark located?
- Christian Clark's practice location on file with NPPES is 6465 S Yale Ave, Tulsa, OK 74136-7823.
- What is Christian Clark's phone number?
- The practice phone number listed in the NPPES registry for Christian Clark is (918) 481-4700.
- Does Christian Clark accept Medicare?
- Christian Clark is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christian Clark's NPI active?
- Yes — Christian Clark's NPI (1649223710) is active in the NPPES registry as of the last update on 2016-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.