Carolyn Hammen, PA
NPI 1982031258 · Physician Assistant · Milwaukee, WI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carolyn Hammen, PA is a Physician Assistant provider in Milwaukee, WI (NPI 1982031258).
Provider details
- NPI number
- 1982031258
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- 3225-23 (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
12 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
191 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) |
|---|---|---|
| Fluoroscopic Guidance for Insertion Or Removal of Central Vein Access Device77001 | 46 | $14 |
| Ultrasonic Guidance for Blood Vessel Access76937 | 41 | $11 |
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes99152 | 35 | $9 |
| Insertion of Tube for Infusion With Imaging Guidance and Review By Radiologist, Patient 5 Years Or Older36573 | 22 | $64 |
| Insertion of Central Venous Tube With Port (5 Years Or Older)36561 | 17 | $252 |
| Insertion of Tunneled Central Venous Tube for Infusion (5 Years Or Older)36558 | 16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ciprofloxacin Hcl | 12 | 12 |
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.
$22 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
- 2013-10-02
- Last updated
- 2018-05-31
Frequently asked questions
- What is Carolyn Hammen's NPI number?
- Carolyn Hammen's National Provider Identifier (NPI) is 1982031258, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carolyn Hammen's specialty?
- Carolyn Hammen is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Carolyn Hammen located?
- Carolyn Hammen's practice location on file with NPPES is 9200 W Wisconsin Ave, Milwaukee, WI 53226.
- What is Carolyn Hammen's phone number?
- The practice phone number listed in the NPPES registry for Carolyn Hammen is (414) 805-3750.
- Does Carolyn Hammen accept Medicare?
- Carolyn Hammen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carolyn Hammen's NPI active?
- Yes — Carolyn Hammen's NPI (1982031258) is active in the NPPES registry as of the last update on 2018-05-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.