Robert M. Holbrook MD, PLLC
NPI 1801824503 · Gastroenterology Physician · Norman, OK
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert M. Holbrook MD, PLLC is a Gastroenterology Physician organization in Norman, OK (NPI 1801824503).
Provider details
- NPI number
- 1801824503
- Entity type
- Organization
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Robert Holbrook, Owner(405) 366-8619
- 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 tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-29
- Last updated
- 2020-08-22
Frequently asked questions
- What is Robert M. Holbrook MD, PLLC's NPI number?
- Robert M. Holbrook MD, PLLC's National Provider Identifier (NPI) is 1801824503, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Robert M. Holbrook MD, PLLC?
- Robert M. Holbrook MD, PLLC is classified in the NPPES registry as Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert M. Holbrook MD, PLLC located?
- Robert M. Holbrook MD, PLLC's practice location on file with NPPES is 1125 N Porter Ave, Norman, OK 73071-6446.
- What is Robert M. Holbrook MD, PLLC's phone number?
- The practice phone number listed in the NPPES registry for Robert M. Holbrook MD, PLLC is (405) 366-8619.
- Does Robert M. Holbrook MD, PLLC accept Medicare?
- Robert M. Holbrook MD, PLLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Robert M. Holbrook MD, PLLC?
- The authorized official listed on Robert M. Holbrook MD, PLLC's NPPES record is Robert Holbrook, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Robert M. Holbrook MD, PLLC's NPI active?
- Yes — Robert M. Holbrook MD, PLLC's NPI (1801824503) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.