Doctor profile · Federal record

Dr. Thomas Frohwein, M.D.

Internal Medicine Physician · Internal Medicine Physician · Hospitalist Physician · Internal Medicine Physician · Farmington, ME

  • NPI 1275941148
  • MIPS 74.4 / 100 · 2023
  • 12 yrs on file
  • Licensed in 3 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
111 Franklin Health Cmns
Farmington, ME 049386144
(207) 779-2456
fax (207) 779-2496
Additional location
5200 Eastern Ave Fl Tower2
Baltimore, MD 212242734
(410) 550-5018
fax (410) 550-2972

Credentials & registration

NPPES · NUCC
NPI registered
July 2014 — 12 yrs on file
Profile last updated
July 10, 2024
Specialty taxonomy
207R00000X — NUCC code
State licenses (3)
Maine #MD28018 · Maryland #D94141 · Montana #70063

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1275941148. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
540
Distinct HCPCS
7
Medicare allowed
$56,585
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 232 127 $122
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 140 75 $82
G0316 Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th 56 37 $32
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 41 41 $181
99238 Hospital discharge day management, 30 minutes or less 30 30 $84
99239 Hospital discharge day management, more than 30 minutes 29 29 $120
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 12 12 $136

In context: peer comparison

Among 2 peers in Farmington Internal Medicine Physician, average services per provider: 61. This provider delivers 8.9× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Frohwein's medical specialty?
Dr. Thomas Frohwein practices Internal Medicine Physician in Farmington, ME.
Where does Dr. Thomas Frohwein practice?
Dr. Thomas Frohwein practices at 111 Franklin Health Cmns, Farmington, ME 049386144. Office phone: 2077792456.
What is Dr. Thomas Frohwein's NPI?
Dr. Thomas Frohwein's National Provider Identifier (NPI) is 1275941148, issued by NPPES.
What procedures does Dr. Thomas Frohwein commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th (HCPCS G0316). Source: CMS Medicare Physician & Other Practitioners file.