Erin Ham, MD
NPI 1154642817 · Allergy Physician · Helena, MT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Erin Ham, MD is a Allergy Physician provider in Helena, MT (NPI 1154642817).
Provider details
- NPI number
- 1154642817
- Entity type
- Individual
- Primary specialty
- Allergy PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 38578 (MT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 22 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Losartan Potassium | 30 |
| Triamcinolone Acetonide | 24 |
| Amlodipine Besylate | 20 |
| Alcohol Antiseptic Padsbrand: Alcohol Prep Pads | 20 |
| Atorvastatin Calcium | 18 |
| Metformin Hclbrand: Metformin Hcl Er | 17 |
| Tamsulosin Hcl | 16 |
| Pantoprazole Sodium | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-06-17
- Last updated
- 2016-06-21
Frequently asked questions
- What is Erin Ham's NPI number?
- Erin Ham's National Provider Identifier (NPI) is 1154642817, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erin Ham's specialty?
- Erin Ham is listed in the NPPES registry with a primary specialty of Allergy Physician (Allopathic & Osteopathic Physicians).
- Where is Erin Ham located?
- Erin Ham's practice location on file with NPPES is 2550 E Broadway St, Helena, MT 59601-4905.
- What is Erin Ham's phone number?
- The practice phone number listed in the NPPES registry for Erin Ham is (406) 457-4180.
- Does Erin Ham accept Medicare?
- Erin Ham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Erin Ham's NPI active?
- Yes — Erin Ham's NPI (1154642817) is active in the NPPES registry as of the last update on 2016-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.