Johanna Dreiling, M.D.
NPI 1114174414 · Family Medicine Physician · Hamilton, MT
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Johanna Dreiling, M.D. is a Family Medicine Physician provider in Hamilton, MT (NPI 1114174414).
Provider details
- NPI number
- 1114174414
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 12495 (MT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
17 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 57 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 127 | 29 |
| Atorvastatin Calcium | 112 | 32 |
| Levothyroxine Sodium | 99 | 22 |
| Omeprazole | 68 | 18 |
| Gabapentin | 52 | 16 |
| Amlodipine Besylate | 52 | 11 |
| Lisinopril |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$27 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-08-19
- Last updated
- 2026-01-14
- Certified
- 2026-01-14
Frequently asked questions
- What is Johanna Dreiling's NPI number?
- Johanna Dreiling's National Provider Identifier (NPI) is 1114174414, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Johanna Dreiling's specialty?
- Johanna Dreiling is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Johanna Dreiling located?
- Johanna Dreiling's practice location on file with NPPES is 623 S 4th St, Hamilton, MT 59840-2740.
- What is Johanna Dreiling's phone number?
- The practice phone number listed in the NPPES registry for Johanna Dreiling is (406) 544-0295.
- Does Johanna Dreiling accept Medicare?
- Johanna Dreiling is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Johanna Dreiling's NPI active?
- Yes — Johanna Dreiling's NPI (1114174414) is active in the NPPES registry as of the last update on 2026-01-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.