Doctor profile · Federal record

Dr. Clinton McMahill, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Student in an Organized Health Care Education/Training Program · Lander, WY

  • NPI 1245556190
  • Accepts Medicare
  • 16 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
745 Buena Vista Dr
Lander, WY 825203431
(307) 332-2941

Credentials & registration

NPPES · NUCC
NPI registered
April 2010 — 16 yrs on file
Profile last updated
July 25, 2013
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Wyoming #TL2257

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1245556190. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
5,444
Distinct HCPCS
10
Medicare allowed
$298,397
HCPCS Description Services Patients Avg allowed
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 804 136 $62
36415 Insertion of needle into vein for collection of blood sample 721 336 $8
99214 Established patient office or other outpatient visit, 30-39 minutes 560 279 $128
99213 Established patient office or other outpatient visit, 20-29 minutes 328 220 $90
80053 Blood test, comprehensive group of blood chemicals 285 232 $10
99457 Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 240 40 $47
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 207 140 $8
80061 Blood test, lipids (cholesterol and triglycerides) 202 173 $13
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 198 198 $130
83036 Hemoglobin a1c level 188 104 $10

In context: peer comparison

Among 2 peers in Lander Internal Medicine Physician, average services per provider: 113. This provider delivers 48× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$16
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals Lp 1 $16.33

By nature of payment

Food and Beverage
$16

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,310
Patients
816
Total drug cost
$361,193
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 544 148 $7,578
Levothyroxine Sodium Generic 427 90 $6,445
Lisinopril Generic 233 59 $1,941
Losartan Potassium Generic 232 57 $4,190
Amlodipine Besylate Generic 225 53 $2,321
Metformin Hcl Generic 223 57 $2,329
Eliquis (Apixaban) Brand 221 44 $159,615
Gabapentin Generic 202 43 $5,363
Omeprazole Generic 183 51 $3,090
Tamsulosin Hcl Generic 158 39 $3,037

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Clinton McMahill's medical specialty?
Dr. Clinton McMahill practices Internal Medicine Physician in Lander, WY.
Where does Dr. Clinton McMahill practice?
Dr. Clinton McMahill practices at 745 Buena Vista Dr, Lander, WY 825203431. Office phone: 3073322941.
What is Dr. Clinton McMahill's NPI?
Dr. Clinton McMahill's National Provider Identifier (NPI) is 1245556190, issued by NPPES.
Does Dr. Clinton McMahill accept Medicare assignment?
Yes. Dr. Clinton McMahill accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Clinton McMahill commonly perform?
Top Medicare-reported procedures in 2023: Chronic care management services (HCPCS 99490); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.