Doctor profile · Federal record

Dr. Ariel Fillmore, MD

Family Medicine Physician (CMS: Family Practice) · Missoula, MT

  • NPI 1033616230
  • Accepts Medicare
  • MIPS 95.7 / 100 · 2023
  • 8 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
401 Railroad St W
Missoula, MT 598024109
(406) 258-4789
fax (406) 258-4732

Credentials & registration

NPPES · NUCC
NPI registered
April 2018 — 8 yrs on file
Profile last updated
October 27, 2021
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
Utah #12390020-1205

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1033616230. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
78
Distinct HCPCS
2
Medicare allowed
$6,951
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 67 59 $93
99213 Established patient office or other outpatient visit, 20-29 minutes 11 11 $64

In context: peer comparison

Among 29 peers in this city , average services per provider: 77. This provider delivers 1.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
375
Patients
44
Total drug cost
$25,059
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 56 19 $802
Levothyroxine Sodium Generic 39 12 $946
Amlodipine Besylate Generic 36 0 $342
Losartan Potassium Generic 35 13 $442
Omeprazole Generic 33 0 $597
Metformin Hcl Generic 25 0 $239
Lisinopril Generic 22 0 $252
Gabapentin Generic 21 0 $2,297
Metformin Hcl Er (Metformin Hcl) Brand 21 0 $369
Simvastatin Generic 19 0 $247

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Ariel Fillmore's medical specialty?
Dr. Ariel Fillmore practices Family Medicine Physician in Missoula, MT.
Where does Dr. Ariel Fillmore practice?
Dr. Ariel Fillmore practices at 401 Railroad St W, Missoula, MT 598024109. Office phone: 4062584789.
What is Dr. Ariel Fillmore's NPI?
Dr. Ariel Fillmore's National Provider Identifier (NPI) is 1033616230, issued by NPPES.
Does Dr. Ariel Fillmore accept Medicare assignment?
Yes. Dr. Ariel Fillmore accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ariel Fillmore commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.