Clinton Wallis, M.D.
NPI 1255384483 · Gastroenterology Physician · Oklahoma City, OK
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clinton Wallis, M.D. is a Gastroenterology Physician provider in Oklahoma City, OK (NPI 1255384483).
Provider details
- NPI number
- 1255384483
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 24646 (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
948 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) |
|---|---|---|
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 245 | $229 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 219 | $45 |
| Insertion of Guide Wire With Dilation of Esophagus Using a Flexible Endoscope43248 | 169 | $118 |
| Colorectal Cancer Screening; Colonoscopy on Individual at High RiskG0105 | 59 | $167 |
| Colorectal Cancer Screening; Colonoscopy on Individual Not Meeting Criteria for High RiskG0121 | 58 | $166 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 420 | 137 |
| Omeprazole | 292 | 88 |
| Esomeprazole Magnesium | 52 | 17 |
| Colestipol Hcl | 51 | 22 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 35 | 33 |
| Mesalamine | 32 | 11 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 28 | 28 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$116 across 4 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
- 2025-02-17
- Certified
- 2025-02-17
Frequently asked questions
- What is Clinton Wallis's NPI number?
- Clinton Wallis's National Provider Identifier (NPI) is 1255384483, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clinton Wallis's specialty?
- Clinton Wallis is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Clinton Wallis located?
- Clinton Wallis's practice location on file with NPPES is 6516 N Olie Ave Ste a, Oklahoma City, OK 73116-7399.
- What is Clinton Wallis's phone number?
- The practice phone number listed in the NPPES registry for Clinton Wallis is (405) 486-6960.
- Does Clinton Wallis accept Medicare?
- Clinton Wallis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clinton Wallis's NPI active?
- Yes — Clinton Wallis's NPI (1255384483) is active in the NPPES registry as of the last update on 2025-02-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.