Doctor profile · Federal record

Dr. Michael Essenmacher, DO

Hospitalist Physician (CMS: Internal Medicine) · Internal Medicine Physician · Internal Medicine Physician · Grand Rapids, MI

  • NPI 1457845075
  • Accepts Medicare
  • 8 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
200 Jefferson Ave Se
Grand Rapids, MI 495034502
(616) 685-6919

Credentials & registration

NPPES · NUCC
NPI registered
June 2018 — 8 yrs on file
Profile last updated
April 22, 2022
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
208M00000X — NUCC code
State licenses (2)
Michigan #5151012747 · Michigan #5101023957

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1457845075. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
337
Distinct HCPCS
4
Medicare allowed
$37,884
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 170 63 $76
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 102 102 $171
99239 Hospital discharge day management, more than 30 minutes 51 50 $112
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 14 14 $128

In context: peer comparison

Among 10 peers in this city , average services per provider: 95. This provider delivers 3.5× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Essenmacher's medical specialty?
Dr. Michael Essenmacher practices Hospitalist Physician in Grand Rapids, MI.
Where does Dr. Michael Essenmacher practice?
Dr. Michael Essenmacher practices at 200 Jefferson Ave Se, Grand Rapids, MI 495034502. Office phone: 6166856919.
What is Dr. Michael Essenmacher's NPI?
Dr. Michael Essenmacher's National Provider Identifier (NPI) is 1457845075, issued by NPPES.
Does Dr. Michael Essenmacher accept Medicare assignment?
Yes. Dr. Michael Essenmacher accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Essenmacher 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); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.