Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Robert Michael Holbrook, MD

Individual provider Gastroenterology Physician · NPI 1053352054

Robert Michael Holbrook, MD is a Gastroenterology in Norman, Oklahoma. Graduated from University of Oklahoma College of Medicine in 2000, 26 years ago. Practices with Charles L. Lackey MD, PC, a 3-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
26
Trained at
University of Oklahoma College of Medicine
Licensed in
OK
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1515 N Porter Ave Ste 200
Norman, OK 73071-6649
Phone: (405) 366-8619
Fax: (405) 366-1839
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 22135 (OK)

Record details

NPI number1053352054
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 9, 2006
Last updated in NPPESJune 13, 2011
Mailing address1515 N Porter Ave, Suite 200, Norman, OK 73071-6649

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF OKLAHOMA COLLEGE OF MEDICINE
Graduated 2000 (26 years in practice)
Group practice Charles L. Lackey Md, Pc — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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