Robert Holbrook, M.D.
NPI 1053352054 · Gastroenterology Physician · Norman, OK
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Holbrook, M.D. is a Gastroenterology Physician provider in Norman, OK (NPI 1053352054).
Provider details
- NPI number
- 1053352054
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 22135 (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
1,313 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 315 | $15 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 261 | $81 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 143 | $97 |
| Dilation of Esophagus43450 | 128 | $35 |
| Diagnostic Exam of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43235 | 91 | $86 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 288 | 114 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 105 | 104 |
| Omeprazole | 94 | 39 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 93 | 92 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 55 | 54 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 52 | 51 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,951 across 123 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
- 2006-06-09
- Last updated
- 2011-06-13
Frequently asked questions
- What is Robert Holbrook's NPI number?
- Robert Holbrook's National Provider Identifier (NPI) is 1053352054, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Holbrook's specialty?
- Robert Holbrook is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Holbrook located?
- Robert Holbrook's practice location on file with NPPES is 1515 N Porter Ave, Norman, OK 73071-6649.
- What is Robert Holbrook's phone number?
- The practice phone number listed in the NPPES registry for Robert Holbrook is (405) 366-8619.
- Does Robert Holbrook accept Medicare?
- Robert Holbrook is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Holbrook's NPI active?
- Yes — Robert Holbrook's NPI (1053352054) is active in the NPPES registry as of the last update on 2011-06-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.