Doctor profile · Federal record

Dr. Thien Tien, MD

Internal Medicine Physician (CMS: Internal Medicine) · Danbury, CT

  • NPI 1235699919
  • Accepts Medicare
  • MIPS 89.1 / 100 · 2023
  • 11 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
24 Hospital Ave
Danbury, CT 068106099
(203) 739-8105
Mailing address
7 Padanaram RD Unit 209
Danbury, CT 068115717

Credentials & registration

NPPES · NUCC
NPI registered
March 2019 — 7 yrs on file
Profile last updated
June 29, 2022
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Connecticut #1.071186

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1235699919. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
511
Distinct HCPCS
5
Medicare allowed
$62,571
HCPCS Description Services Patients Avg allowed
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 175 169 $135
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 139 68 $82
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 101 100 $180
99238 Hospital discharge day management, 30 minutes or less 62 62 $84
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 34 24 $123

In context: peer comparison

Among 35 peers in Danbury Internal Medicine Physician, average services per provider: 136. This provider delivers 3.8× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Thien Tien's medical specialty?
Dr. Thien Tien practices Internal Medicine Physician in Danbury, CT.
Where does Dr. Thien Tien practice?
Dr. Thien Tien practices at 24 Hospital Ave, Danbury, CT 068106099. Office phone: 2037398105.
What is Dr. Thien Tien's NPI?
Dr. Thien Tien's National Provider Identifier (NPI) is 1235699919, issued by NPPES.
Does Dr. Thien Tien accept Medicare assignment?
Yes. Dr. Thien Tien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thien Tien commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.