Doctor profile · Federal record

Dr. Michael Mashiba, MD

Internal Medicine Physician (CMS: Internal Medicine) · Ann Arbor, MI

  • NPI 1801240692
  • Accepts Medicare
  • 10 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1500 E Medical Center Dr
Ann Arbor, MI 481095000
(734) 936-4000
Additional location
2799 West Grand Boulevard, Henry Ford Health System
Detroit, MI 48202
(313) 916-1601
Mailing address
3621 S State St
Ann Arbor, MI 481081633

Credentials & registration

NPPES · NUCC
NPI registered
April 2016 — 10 yrs on file
Profile last updated
July 3, 2019
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Michigan #4301117562

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1801240692. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
254
Distinct HCPCS
6
Medicare allowed
$27,284
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 98 43 $81
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 44 22 $121
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 39 39 $133
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 29 29 $176
99239 Hospital discharge day management, more than 30 minutes 23 22 $117
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 21 11 $51

In context: peer comparison

Among 135 peers in this city , average services per provider: 77. This provider delivers 3.3× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Mashiba's medical specialty?
Dr. Michael Mashiba practices Internal Medicine Physician in Ann Arbor, MI.
Where does Dr. Michael Mashiba practice?
Dr. Michael Mashiba practices at 1500 E Medical Center Dr, Ann Arbor, MI 481095000. Office phone: 7349364000.
What is Dr. Michael Mashiba's NPI?
Dr. Michael Mashiba's National Provider Identifier (NPI) is 1801240692, issued by NPPES.
Does Dr. Michael Mashiba accept Medicare assignment?
Yes. Dr. Michael Mashiba accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Mashiba 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); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.