Doctor profile · Federal record

Dr. Marcus Sizemore, PA

Physician Assistant · Barnsdall, OK

  • NPI 1881686186
  • 21 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
112 N 5Th
Barnsdall, OK 74002
(918) 847-2558
fax (918) 847-2053

Credentials & registration

NPPES · NUCC
NPI registered
August 2005 — 21 yrs on file
Profile last updated
March 31, 2011
Specialty taxonomy
363A00000X — NUCC code
State license (1)
Oklahoma #305

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1881686186. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$120
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Phathom Pharmaceuticals, INC. 1 $119.78

By nature of payment

Food and Beverage
$120

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
93
Patients
0
Total drug cost
$2,349
Drug Type Claims Patients Total cost
Metformin Hcl Generic 22 0 $137
Omeprazole Generic 13 0 $108
Pravastatin Sodium Generic 13 0 $405
Nyamyc (Nystatin) Brand 12 0 $600
Amlodipine Besylate-Benazepril (Amlodipine Besylate/Benazepril) Brand 11 0 $530
Hydrochlorothiazide Generic 11 0 $91
Olanzapine Generic 11 0 $478

Frequently asked questions

Auto-generated from federal data
What is Dr. Marcus Sizemore's medical specialty?
Dr. Marcus Sizemore practices Physician Assistant in Barnsdall, OK.
Where does Dr. Marcus Sizemore practice?
Dr. Marcus Sizemore practices at 112 N 5Th, Barnsdall, OK 74002. Office phone: 9188472558.
What is Dr. Marcus Sizemore's NPI?
Dr. Marcus Sizemore's National Provider Identifier (NPI) is 1881686186, issued by NPPES.