Doctor profile · Federal record

Dr. Mary Mezher, DO

Internal Medicine Physician (CMS: Internal Medicine) · Student in an Organized Health Care Education/Training Program · Muskegon, MI

  • NPI 1124686365
  • Accepts Medicare
  • MIPS 84.9 / 100 · 2023
  • 7 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1500 E Sherman Blvd
Muskegon, MI 494441849
(231) 672-3883
fax (231) 672-3973
Mailing address
1560 E Sherman Blvd Ste 240
Muskegon, MI 494441854

Credentials & registration

NPPES · NUCC
NPI registered
June 2019 — 7 yrs on file
Profile last updated
August 29, 2022
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Michigan #5101026939

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1124686365. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
568
Distinct HCPCS
5
Medicare allowed
$52,743
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 379 188 $76
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 63 43 $114
99239 Hospital discharge day management, more than 30 minutes 44 41 $110
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 42 42 $124
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 40 40 $168

In context: peer comparison

Among 13 peers in Muskegon Internal Medicine Physician, average services per provider: 78. This provider delivers 7.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$73
Transactions
3
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 1 $33.37
E.R. Squibb & Sons, L.L.C. 1 $24.46
Merck Sharp & Dohme LLC 1 $15.11

By nature of payment

Food and Beverage
$73

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
53
Patients
12
Total drug cost
$561
Drug Type Claims Patients Total cost
Metoprolol Succinate Generic 15 12 $230
Losartan Potassium Generic 14 0 $125
Amlodipine Besylate Generic 12 0 $98
Atorvastatin Calcium Generic 12 0 $108

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Mezher's medical specialty?
Dr. Mary Mezher practices Internal Medicine Physician in Muskegon, MI.
Where does Dr. Mary Mezher practice?
Dr. Mary Mezher practices at 1500 E Sherman Blvd, Muskegon, MI 494441849. Office phone: 2316723883.
What is Dr. Mary Mezher's NPI?
Dr. Mary Mezher's National Provider Identifier (NPI) is 1124686365, issued by NPPES.
Does Dr. Mary Mezher accept Medicare assignment?
Yes. Dr. Mary Mezher accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Mezher 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 99239). Source: CMS Medicare Physician & Other Practitioners file.