Erin Williams-Leber, P A
NPI 1548297880 · Medical Physician Assistant · Butte, MT
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Erin Williams-Leber, P A is a Medical Physician Assistant provider in Butte, MT (NPI 1548297880).
Provider details
- NPI number
- 1548297880
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P A
- Sex
- Female
- Sole proprietor
- No
- License
- 319 (MT)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
247 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 57 | $107 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 38 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 36 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 36 | $8 |
| Measurement C-Reactive Protein for Detection of Infection Or Inflammation86140 | 23 | $5 |
| Red Blood Cell Sedimentation Rate, to Detect Inflammation, Non-Automated85651 | 22 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Clonidine | 12 |
| Methocarbamol | 12 |
| Alprazolam | 11 |
| Dapagliflozin Propanediolbrand: Farxiga | 11 |
| Tirzepatidebrand: Mounjaro | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$710 across 44 records (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
- 2006-06-26
- Last updated
- 2007-07-09
Frequently asked questions
- What is Erin Williams-Leber's NPI number?
- Erin Williams-Leber's National Provider Identifier (NPI) is 1548297880, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erin Williams-Leber's specialty?
- Erin Williams-Leber is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Erin Williams-Leber located?
- Erin Williams-Leber's practice location on file with NPPES is 300 W Mercury St, Butte, MT 59701-1652.
- What is Erin Williams-Leber's phone number?
- The practice phone number listed in the NPPES registry for Erin Williams-Leber is (406) 723-1300.
- Does Erin Williams-Leber accept Medicare?
- Erin Williams-Leber is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Erin Williams-Leber's NPI active?
- Yes — Erin Williams-Leber's NPI (1548297880) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.