Doctor profile · Federal record

Dr. Mitchell Grohowski, DO

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

  • NPI 1174709588
  • Accepts Medicare
  • MIPS 100.0 / 100 · 2023
  • 19 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
602 Michigan Ave
Holland, MI 494234918
(616) 546-4950
fax (616) 546-4955

Credentials & registration

NPPES · NUCC
NPI registered
January 2008 — 18 yrs on file
Profile last updated
May 19, 2016
Year of graduation
2007 — 19 yrs since
Specialty taxonomy
208M00000X — NUCC code
State license (1)
Michigan #5101017243

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1174709588. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
496
Distinct HCPCS
5
Medicare allowed
$60,122
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 241 107 $115
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 106 98 $167
99239 Hospital discharge day management, more than 30 minutes 81 78 $110
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 56 32 $76
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 12 12 $126

In context: peer comparison

Among 1 peers in Holland Hospitalist Physician, average services per provider: 99. This provider delivers 5.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
45
Patients
34
Total drug cost
$189
Drug Type Claims Patients Total cost
Furosemide Generic 12 12 $42
Lisinopril Generic 11 0 $86
Prednisone Generic 11 11 $34
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 11 11 $27

Frequently asked questions

Auto-generated from federal data
What is Dr. Mitchell Grohowski's medical specialty?
Dr. Mitchell Grohowski practices Hospitalist Physician in Holland, MI.
Where does Dr. Mitchell Grohowski practice?
Dr. Mitchell Grohowski practices at 602 Michigan Ave, Holland, MI 494234918. Office phone: 6165464950.
What is Dr. Mitchell Grohowski's NPI?
Dr. Mitchell Grohowski's National Provider Identifier (NPI) is 1174709588, issued by NPPES.
Does Dr. Mitchell Grohowski accept Medicare assignment?
Yes. Dr. Mitchell Grohowski accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mitchell Grohowski commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.