Doctor profile · Federal record

Dr. Justin Rieth, M.D.

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

  • NPI 1629428552
  • Accepts Medicare
  • MIPS 93.8 / 100 · 2023
  • 10 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
25 Michigan St Ne, Suite 2100
Grand Rapids, MI 495032515
(616) 391-3777
Mailing address
100 Michigan St Ne
Grand Rapids, MI 495032560

Credentials & registration

NPPES · NUCC
NPI registered
June 2016 — 10 yrs on file
Profile last updated
February 22, 2021
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Michigan #4301110228

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1629428552. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
261
Distinct HCPCS
6
Medicare allowed
$24,945
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 132 55 $78
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 39 28 $117
99238 Hospital discharge day management, 30 minutes or less 36 36 $79
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 22 22 $128
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 16 16 $164
99239 Hospital discharge day management, more than 30 minutes 16 16 $112

In context: peer comparison

Among 105 peers in this city , average services per provider: 82. This provider delivers 3.2× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Justin Rieth's medical specialty?
Dr. Justin Rieth practices Internal Medicine Physician in Grand Rapids, MI.
Where does Dr. Justin Rieth practice?
Dr. Justin Rieth practices at 25 Michigan St Ne, Grand Rapids, MI 495032515. Office phone: 6163913777.
What is Dr. Justin Rieth's NPI?
Dr. Justin Rieth's National Provider Identifier (NPI) is 1629428552, issued by NPPES.
Does Dr. Justin Rieth accept Medicare assignment?
Yes. Dr. Justin Rieth accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Justin Rieth commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99238). Source: CMS Medicare Physician & Other Practitioners file.