Warren Butt, M.D.
NPI 1427129436 · Specialist · Newark, DE
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Warren Butt, M.D. is a Specialist provider in Newark, DE (NPI 1427129436).
Provider details
- NPI number
- 1427129436
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- C1-0003750 (DE)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
894 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 | 206 | $244 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 144 | $96 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 115 | $96 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 86 | $88 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 73 | $126 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 511 | 177 |
| Pantoprazole Sodium | 69 | 23 |
| Famotidine | 67 | 25 |
| Lipase/Protease/Amylasebrand: Creon | 39 | 13 |
| Adalimumabbrand: Humira(cf) Pen | 37 | — |
| Esomeprazole Magnesium | 31 | — |
| Lansoprazole | 24 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$508 across 22 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
- 2006-11-13
- Last updated
- 2007-07-08
Frequently asked questions
- What is Warren Butt's NPI number?
- Warren Butt's National Provider Identifier (NPI) is 1427129436, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Warren Butt's specialty?
- Warren Butt is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Warren Butt located?
- Warren Butt's practice location on file with NPPES is 4745 Ogletown Stanton Rd, Newark, DE 19713-2067.
- What is Warren Butt's phone number?
- The practice phone number listed in the NPPES registry for Warren Butt is (302) 738-5300.
- Does Warren Butt accept Medicare?
- Warren Butt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Warren Butt's NPI active?
- Yes — Warren Butt's NPI (1427129436) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.