Doctor profile · Federal record

Dr. Carleen Grussling, LCSW, MSW

Clinical Social Worker · Hamilton, MT

  • NPI 1639431224
  • Accepts Medicare
  • 36 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
120 Copper King CT Ste A
Hamilton, MT 59840
(406) 361-0283
Additional location
209 N 10Th St, Suite A
Hamilton, MT 598402357
(406) 532-9101
fax (406) 363-4498
Mailing address
Po Box 777
Hamilton, MT 598400777

Credentials & registration

NPPES · NUCC
NPI registered
June 2012 — 14 yrs on file
Profile last updated
August 27, 2019
Year of graduation
1990 — 36 yrs since
Specialty taxonomy
1041C0700X — NUCC code
State license (1)
Montana #2303

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1639431224. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
252
Distinct HCPCS
1
Medicare allowed
$27,339
HCPCS Description Services Patients Avg allowed
90837 Psychotherapy, 1 hour 252 17 $108

In context: peer comparison

Among 3 peers in Hamilton Clinical Social Worker, average services per provider: 206. This provider delivers 1.2× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Carleen Grussling's medical specialty?
Dr. Carleen Grussling practices Clinical Social Worker in Hamilton, MT.
Where does Dr. Carleen Grussling practice?
Dr. Carleen Grussling practices at 120 Copper King CT Ste A, Hamilton, MT 59840. Office phone: 4063610283.
What is Dr. Carleen Grussling's NPI?
Dr. Carleen Grussling's National Provider Identifier (NPI) is 1639431224, issued by NPPES.
Does Dr. Carleen Grussling accept Medicare assignment?
Yes. Dr. Carleen Grussling accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Carleen Grussling commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90837). Source: CMS Medicare Physician & Other Practitioners file.