Thomas Addison, MD
NPI 1871594754 · Geriatric Medicine (Internal Medicine) Physician · Great Falls, MT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Addison, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Great Falls, MT (NPI 1871594754).
Provider details
- NPI number
- 1871594754
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 5064 (MT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
21 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
4,435 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 1,105 | $8 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 590 | $66 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 442 | $95 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 313 | $16 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 222 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 163 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 668 | 71 |
| Atorvastatin Calcium | 513 | 78 |
| Omeprazole | 425 | 62 |
| Apixabanbrand: Eliquis | 406 | 34 |
| Amlodipine Besylate | 394 | 63 |
| Pantoprazole Sodium | 378 | 50 |
| Mirtazapine |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-02
- Last updated
- 2024-04-05
- Certified
- 2024-04-05
Frequently asked questions
- What is Thomas Addison's NPI number?
- Thomas Addison's National Provider Identifier (NPI) is 1871594754, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Addison's specialty?
- Thomas Addison is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Addison located?
- Thomas Addison's practice location on file with NPPES is 1401 25th St S, Great Falls, MT 59405-5183.
- What is Thomas Addison's phone number?
- The practice phone number listed in the NPPES registry for Thomas Addison is (406) 731-8888.
- Does Thomas Addison accept Medicare?
- Thomas Addison is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Addison's NPI active?
- Yes — Thomas Addison's NPI (1871594754) is active in the NPPES registry as of the last update on 2024-04-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.