Doctor profile · Federal record

Dr. John Williams, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Stillwater, OK

  • NPI 1528068426
  • Accepts Medicare
  • MIPS 39.7 / 100 · 2023
  • 45 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
608 S Hester St
Stillwater, OK 740744516
(405) 377-8000
fax (405) 377-8040

Credentials & registration

NPPES · NUCC
NPI registered
July 2005 — 21 yrs on file
Profile last updated
July 8, 2007
Year of graduation
1981 — 45 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Oklahoma #13127

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1528068426. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
5,032
Distinct HCPCS
10
Medicare allowed
$213,297
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 1,181 227 $84
36415 Insertion of needle into vein for collection of blood sample 415 221 $8
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 380 231 $8
99214 Established patient office or other outpatient visit, 30-39 minutes 288 225 $119
80061 Blood test, lipids (cholesterol and triglycerides) 228 214 $13
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 208 184 $8
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 207 179 $13
83036 Hemoglobin a1c level 186 93 $9
81003 Automated urinalysis test 182 126 $2
G0008 Administration of influenza virus vaccine 144 137 $29

In context: peer comparison

Among 6 peers in this city , average services per provider: 134. This provider delivers 38× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$325
Transactions
18
Manufacturers
12
Payer (manufacturer) Industry Txns Amount
Abbott Laboratories 5 $81.44
Lundbeck LLC 2 $40.23
ABBVIE INC. 1 $30.79
PROCEPT BioRobotics Corporation 1 $28.42
Phathom Pharmaceuticals, Inc. 2 $27.81
iRhythm Technologies, Inc. 1 $23.23
Boehringer Ingelheim Pharmaceuticals, Inc. 1 $19.85
Vanda Pharmaceuticals Inc. 1 $15.96
AstraZeneca Pharmaceuticals LP 1 $15.52
Tandem Diabetes Care, Inc. 1 $15.02
Janssen Pharmaceuticals, Inc 1 $13.70
Amgen Inc. 1 $13.33

By nature of payment

Food and Beverage
$325

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,088
Patients
852
Total drug cost
$46,958
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 332 77 $3,412
Amlodipine Besylate Generic 305 87 $3,255
Losartan Potassium Generic 277 75 $3,785
Gabapentin Generic 243 69 $6,478
Pantoprazole Sodium Generic 230 65 $3,203
Rosuvastatin Calcium Generic 212 63 $3,900
Tramadol Hcl Generic 207 41 $2,848
Hydrochlorothiazide Generic 187 49 $757
Fluticasone Propionate Generic 174 79 $3,597
Lisinopril Generic 173 47 $1,751

Frequently asked questions

Auto-generated from federal data
What is Dr. John Williams's medical specialty?
Dr. John Williams practices Internal Medicine Physician in Stillwater, OK.
Where does Dr. John Williams practice?
Dr. John Williams practices at 608 S Hester St, Stillwater, OK 740744516. Office phone: 4053778000.
What is Dr. John Williams's NPI?
Dr. John Williams's National Provider Identifier (NPI) is 1528068426, issued by NPPES.
Does Dr. John Williams accept Medicare assignment?
Yes. Dr. John Williams accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Williams commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (HCPCS 85025). Source: CMS Medicare Physician & Other Practitioners file.