Doctor profile · Federal record

Dr. Gary Riggs, M.D.

Internal Medicine Physician (CMS: Hospitalist) · Oklahoma City, OK

  • NPI 1902821085
  • Accepts Medicare
  • 29 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3300 Nw Expressway
Oklahoma City, OK 731124418
(405) 713-7403
fax (405) 713-2794
Mailing address
5300 N Independence Ave, Suite 280
Oklahoma City, OK 731125556

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
July 20, 2017
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Oklahoma #20825

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1902821085. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
736
Distinct HCPCS
5
Medicare allowed
$75,869
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 463 197 $112
99238 Hospital discharge day management, 30 minutes or less 118 116 $76
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 82 53 $75
99239 Hospital discharge day management, more than 30 minutes 56 55 $108
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 17 17 $164

In context: peer comparison

Among 90 peers in Oklahoma City Internal Medicine Physician, average services per provider: 133. This provider delivers 5.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$32
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Novartis Pharmaceuticals Corporation 1 $32.33

By nature of payment

Food and Beverage
$32

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
37
Patients
11
Total drug cost
$1,179
Drug Type Claims Patients Total cost
Furosemide Generic 15 0 $51
Clonidine Generic 11 0 $1,081
Prednisone Generic 11 11 $47

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Gary Riggs's medical specialty?
Dr. Gary Riggs practices Internal Medicine Physician in Oklahoma City, OK.
Where does Dr. Gary Riggs practice?
Dr. Gary Riggs practices at 3300 Nw Expressway, Oklahoma City, OK 731124418. Office phone: 4057137403.
What is Dr. Gary Riggs's NPI?
Dr. Gary Riggs's National Provider Identifier (NPI) is 1902821085, issued by NPPES.
Does Dr. Gary Riggs accept Medicare assignment?
Yes. Dr. Gary Riggs accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gary Riggs commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99238); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.