Doctor profile · Federal record

Dr. Frank Sprague, MD

Internal Medicine Physician (CMS: Internal Medicine) · Muskegon, MI

  • NPI 1134120108
  • Accepts Medicare
  • 54 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
376 E Apple Ave
Muskegon, MI 494423466
(231) 724-1335
Additional location
1675 Leahy St Ste 103
Muskegon, MI 494425538
(231) 737-1335
Additional location
2700 Baker St Fl 3
Muskegon, MI 494442157
(231) 737-1335
Mailing address
2700 Baker St Fl 3
Muskegon, MI 494442157

Credentials & registration

NPPES · NUCC
NPI registered
August 2005 — 21 yrs on file
Profile last updated
January 3, 2022
Year of graduation
1972 — 54 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Michigan #4301043372
Medicaid
MI #3475562

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1134120108. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$117
Transactions
5
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
Merck Sharp & Dohme LLC 1 $30.92
Lundbeck LLC 1 $28.00
Novo Nordisk INC 1 $23.96
Lilly USA, LLC 1 $21.46
Abbvie INC. 1 $13.15

By nature of payment

Food and Beverage
$117

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
559
Patients
57
Total drug cost
$26,993
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 92 24 $1,228
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 59 11 $958
Gabapentin Generic 57 11 $445
Metformin Hcl Generic 42 11 $443
Omeprazole Generic 35 0 $177
Losartan Potassium Generic 33 0 $312
Lisinopril-Hydrochlorothiazide (Lisinopril/Hydrochlorothiazide) Brand 31 0 $197
Potassium Chloride Generic 30 0 $633
Amlodipine Besylate Generic 28 0 $87
Jardiance (Empagliflozin) Brand 28 0 $20,669

Frequently asked questions

Auto-generated from federal data
What is Dr. Frank Sprague's medical specialty?
Dr. Frank Sprague practices Internal Medicine Physician in Muskegon, MI.
Where does Dr. Frank Sprague practice?
Dr. Frank Sprague practices at 376 E Apple Ave, Muskegon, MI 494423466. Office phone: 2317241335.
What is Dr. Frank Sprague's NPI?
Dr. Frank Sprague's National Provider Identifier (NPI) is 1134120108, issued by NPPES.
Does Dr. Frank Sprague accept Medicare assignment?
Yes. Dr. Frank Sprague accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.