Doctor profile · Federal record
Dr. Madeleine Garren, M.D.
Anesthesiology Physician (CMS: Anesthesiology) · Anesthesiology Physician · Billings, MT
- NPI 1942654447
- Accepts Medicare
- 6 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
3333 2Nd Ave N Ste 240
Billings, MT 591012033
(406) 248-3290 - Additional location
-
10415 Wallace Alley St
Kingsport, TN 376633936
(423) 968-4050 - Mailing address
-
Po Box 1155
Billings, MT 591031155
Credentials & registration
- NPI registered
- April 2016 — 10 yrs on file
- Profile last updated
- February 4, 2025
- Year of graduation
- 2020 — 6 yrs since
- Specialty taxonomy
- 207L00000X — NUCC code
- State licenses (2)
- Montana #101085 · Tennessee #56951
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1942654447. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
94
Distinct HCPCS
4
Medicare allowed
$12,204
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
36620 |
Insertion of artery tube for blood sampling or infusion through skin | 48 | 48 | $44 | |
01926 |
Anesthesia for x-ray on artery of brain, heart, or chest | 19 | 19 | $267 | |
93313 |
Insertion of probe in esophagus for heart ultrasound | 16 | 16 | $11 | |
00537 |
Anesthesia for procedure to assess heart electrical activity | 11 | 11 | $443 |
In context: peer comparison
Among 25 peers in this city , average services per provider: 23. This provider delivers 4.1× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Madeleine Garren's medical specialty?
Dr. Madeleine Garren practices Anesthesiology Physician in Billings, MT.
Where does Dr. Madeleine Garren practice?
Dr. Madeleine Garren practices at 3333 2Nd Ave N Ste 240, Billings, MT 591012033. Office phone: 4062483290.
What is Dr. Madeleine Garren's NPI?
Dr. Madeleine Garren's National Provider Identifier (NPI) is 1942654447, issued by NPPES.
Does Dr. Madeleine Garren accept Medicare assignment?
Yes. Dr. Madeleine Garren accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Madeleine Garren commonly perform?
Top Medicare-reported procedures in 2023: Insertion of artery tube for blood sampling or infusion through skin (HCPCS 36620); Anesthesia for x-ray on artery of brain, heart, or chest (HCPCS 01926); Insertion of probe in esophagus for heart ultrasound (HCPCS 93313). Source: CMS Medicare Physician & Other Practitioners file.