Doctor profile · Federal record

Dr. Larry Sonnenberg, MD

Family Medicine Physician · Bozeman, MT

  • NPI 1811919673
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
931 Highland Blvd, Suite 3360
Bozeman, MT 59715
(406) 587-4242
fax (406) 587-3507

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
Montana #6146
Medicaid
MT #0103415

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1811919673. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
159
Distinct HCPCS
8
Medicare allowed
$5,561
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 30 28 $86
36415 Insertion of needle into vein for collection of blood sample 23 22 $8
81001 Manual urinalysis test with examination using microscope, automated 20 20 $3
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test 20 19 $6
80053 Blood test, comprehensive group of blood chemicals 19 19 $10
80061 Blood test, lipids (cholesterol and triglycerides) 18 18 $13
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 17 17 $121
83036 Hemoglobin a1c level 12 12 $10

In context: peer comparison

Among 12 peers in this city , average services per provider: 69. This provider delivers 2.3× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
789
Patients
289
Total drug cost
$42,426
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 162 71 $2,426
Lisinopril Generic 77 35 $763
Hydrochlorothiazide Generic 57 24 $352
Losartan Potassium Generic 57 23 $673
Omeprazole Generic 54 21 $666
Levothyroxine Sodium Generic 52 20 $787
Metformin Hcl Generic 50 24 $684
Rosuvastatin Calcium Generic 46 17 $613
Tamsulosin Hcl Generic 44 0 $893
Metoprolol Succinate Generic 41 19 $841

Frequently asked questions

Auto-generated from federal data
What is Dr. Larry Sonnenberg's medical specialty?
Dr. Larry Sonnenberg practices Family Medicine Physician in Bozeman, MT.
Where does Dr. Larry Sonnenberg practice?
Dr. Larry Sonnenberg practices at 931 Highland Blvd, Bozeman, MT 59715. Office phone: 4065874242.
What is Dr. Larry Sonnenberg's NPI?
Dr. Larry Sonnenberg's National Provider Identifier (NPI) is 1811919673, issued by NPPES.
What procedures does Dr. Larry Sonnenberg commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Manual urinalysis test with examination using microscope, automated (HCPCS 81001). Source: CMS Medicare Physician & Other Practitioners file.