Doctor profile · Federal record

Dr. Jon Carnahan, DO

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

  • NPI 1568959609
  • Accepts Medicare
  • MIPS 84.9 / 100 · 2023
  • 8 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1500 E Sherman Blvd
Muskegon, MI 494441849
(231) 672-3883
fax (231) 672-3973
Additional location
1675 Leahy St Ste 201A
Muskegon, MI 494425542
(231) 672-7800
fax (231) 672-7801
Mailing address
1560 E Sherman Blvd Ste 240
Muskegon, MI 494441854

Credentials & registration

NPPES · NUCC
NPI registered
April 2018 — 8 yrs on file
Profile last updated
April 23, 2022
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
208M00000X — NUCC code
State license (1)
Michigan #5101026325

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1568959609. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
416
Distinct HCPCS
5
Medicare allowed
$44,557
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 238 120 $76
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 84 81 $168
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 55 24 $115
99239 Hospital discharge day management, more than 30 minutes 21 21 $110
99291 Critical care, first 30-74 minutes 18 12 $207

In context: peer comparison

Among 15 peers in Muskegon Hospitalist Physician, average services per provider: 86. This provider delivers 4.8× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$49
Transactions
3
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Merck Sharp & Dohme LLC 2 $29.61
E.R. Squibb & Sons, L.L.C. 1 $19.40

By nature of payment

Food and Beverage
$49

Frequently asked questions

Auto-generated from federal data
What is Dr. Jon Carnahan's medical specialty?
Dr. Jon Carnahan practices Hospitalist Physician in Muskegon, MI.
Where does Dr. Jon Carnahan practice?
Dr. Jon Carnahan practices at 1500 E Sherman Blvd, Muskegon, MI 494441849. Office phone: 2316723883.
What is Dr. Jon Carnahan's NPI?
Dr. Jon Carnahan's National Provider Identifier (NPI) is 1568959609, issued by NPPES.
Does Dr. Jon Carnahan accept Medicare assignment?
Yes. Dr. Jon Carnahan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jon Carnahan commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.