Maressa Sweeney, PA-C
NPI 1851794218 · Medical Physician Assistant · Milwaukee, WI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maressa Sweeney, PA-C is a Medical Physician Assistant provider in Milwaukee, WI (NPI 1851794218).
Provider details
- NPI number
- 1851794218
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 3435-23 (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
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
498 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) |
|---|---|---|
| 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 | 225 | $13 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 185 | $78 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 61 | $53 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 14 | $116 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 13 | $53 |
Typical Medicare-allowed amounts for these services range $13–$116 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 428 | 143 |
| Exemestane | 139 | 46 |
| Letrozole | 133 | 34 |
| Tamoxifen Citrate | 99 | 35 |
| Oxycodone Hcl | 84 | 13 |
| Gabapentin | 48 | 21 |
| Alendronate Sodium | 37 | 14 |
| Lorazepam | 31 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$186 across 2 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
Additional practice locations (4)
- W180n8085 Town Hall RdMenomonee Falls, WI 53051-3518Phone: (262) 257-5100Fax: (262) 253-7081
- 4805 S Moorland RdNew Berlin, WI 53151-7401Phone: (262) 798-7200Fax: (262) 798-7201
- 7901 S 6th StOak Creek, WI 53154-2010Phone: (414) 346-8000Fax: (414) 346-8010
- 3200 Pleasant Valley RdWest Bend, WI 53095-9274Phone: (262) 836-7200Fax: (262) 836-7201
Registry dates
- Enumerated
- 2014-09-30
- Last updated
- 2024-03-04
- Certified
- 2024-03-04
Frequently asked questions
- What is Maressa Sweeney's NPI number?
- Maressa Sweeney's National Provider Identifier (NPI) is 1851794218, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maressa Sweeney's specialty?
- Maressa Sweeney is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Maressa Sweeney located?
- Maressa Sweeney's practice location on file with NPPES is 9200 W Wisconsin Ave, Milwaukee, WI 53226.
- What is Maressa Sweeney's phone number?
- The practice phone number listed in the NPPES registry for Maressa Sweeney is (414) 805-4600.
- Does Maressa Sweeney accept Medicare?
- Maressa Sweeney is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maressa Sweeney's NPI active?
- Yes — Maressa Sweeney's NPI (1851794218) is active in the NPPES registry as of the last update on 2024-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.