Doctor profile · Federal record

Dr. Ion Grosu, M.D.

Hospitalist Physician (CMS: Hospitalist) · Bangor, ME

  • NPI 1255573242
  • Accepts Medicare
  • 25 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
489 State St
Bangor, ME 044016616
(207) 973-7000
fax (207) 973-5042
Mailing address
43 Whiting Hill RD, Ste 300
Brewer, ME 044121005

Credentials & registration

NPPES · NUCC
NPI registered
April 2009 — 17 yrs on file
Profile last updated
October 19, 2012
Year of graduation
2001 — 25 yrs since
Specialty taxonomy
208M00000X — NUCC code
State license (1)
Maine #MD19240

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1255573242. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
475
Distinct HCPCS
5
Medicare allowed
$44,039
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 220 95 $75
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 152 73 $112
99239 Hospital discharge day management, more than 30 minutes 73 73 $108
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 19 13 $47
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 11 11 $164

In context: peer comparison

Among 17 peers in Bangor Hospitalist Physician, average services per provider: 98. This provider delivers 4.8× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
225
Patients
96
Total drug cost
$8,055
Drug Type Claims Patients Total cost
Furosemide Generic 37 25 $180
Clopidogrel (Clopidogrel Bisulfate) Brand 33 0 $310
Metoprolol Succinate Generic 24 19 $393
Pantoprazole Sodium Generic 20 11 $214
Atorvastatin Calcium Generic 17 16 $146
Isosorbide Mononitrate ER (Isosorbide Mononitrate) Brand 17 14 $134
Amiodarone Hcl Generic 16 0 $168
Levothyroxine Sodium Generic 14 0 $146
Metoprolol Tartrate Generic 13 11 $57
Hydralazine Hcl Generic 12 0 $154

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Ion Grosu's medical specialty?
Dr. Ion Grosu practices Hospitalist Physician in Bangor, ME.
Where does Dr. Ion Grosu practice?
Dr. Ion Grosu practices at 489 State St, Bangor, ME 044016616. Office phone: 2079737000.
What is Dr. Ion Grosu's NPI?
Dr. Ion Grosu's National Provider Identifier (NPI) is 1255573242, issued by NPPES.
Does Dr. Ion Grosu accept Medicare assignment?
Yes. Dr. Ion Grosu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ion Grosu 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.