Alix Mertens, PA-C
NPI 1376184549 · Physician Assistant · Milwaukee, WI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alix Mertens, PA-C is a Physician Assistant provider in Milwaukee, WI (NPI 1376184549).
Provider details
- NPI number
- 1376184549
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 4730-23 (WI)
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
6 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
96 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 | 96 | $108 |
Typical Medicare-allowed amounts for these services range $108–$108 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Colchicine | 77 | 76 |
| Amiodarone Hcl | 74 | 68 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 73 | 36 |
| Pantoprazole Sodium | 69 | 64 |
| Apixabanbrand: Eliquis | 66 | 31 |
| Metoprolol Succinate | 29 | 18 |
| Furosemide | 23 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$18 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
Additional practice locations (2)
- 2900 W Oklahoma AveMilwaukee, WI 53215-4330Phone: (414) 649-6000
- 2900 W Oklahoma AveMilwaukee, WI 53215-4330Phone: (414) 649-6000
Registry dates
- Enumerated
- 2019-09-30
- Last updated
- 2025-12-03
- Certified
- 2025-12-03
Frequently asked questions
- What is Alix Mertens's NPI number?
- Alix Mertens's National Provider Identifier (NPI) is 1376184549, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alix Mertens's specialty?
- Alix Mertens is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Alix Mertens located?
- Alix Mertens's practice location on file with NPPES is 2801 W Kinnickinnic River Pkwy, Milwaukee, WI 53215.
- What is Alix Mertens's phone number?
- The practice phone number listed in the NPPES registry for Alix Mertens is (414) 649-3370.
- Does Alix Mertens accept Medicare?
- Alix Mertens is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alix Mertens's NPI active?
- Yes — Alix Mertens's NPI (1376184549) is active in the NPPES registry as of the last update on 2025-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.