Colleen Marx, N.P.
NPI 1891808242 · Family Nurse Practitioner · Two Rivers, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Colleen Marx, N.P. is a Family Nurse Practitioner provider in Two Rivers, WI (NPI 1891808242).
Provider details
- NPI number
- 1891808242
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- N.P.
- Sex
- Female
- Sole proprietor
- No
- License
- 2149 (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 tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
543 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 226 | $72 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 115 | $103 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 95 | $104 |
| Administration of Influenza Virus VaccineG0008 | 43 | $30 |
| Admn Sarscov2 Vacc 1 Dose90480 | 26 | $41 |
| 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'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 144 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 389 | 103 |
| Omeprazole | 338 | 99 |
| Lisinopril | 301 | 88 |
| Amlodipine Besylate | 277 | 93 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 276 | 79 |
| Levothyroxine Sodium | 271 | 81 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-17
- Last updated
- 2026-03-05
- Certified
- 2026-03-05
Frequently asked questions
- What is Colleen Marx's NPI number?
- Colleen Marx's National Provider Identifier (NPI) is 1891808242, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Colleen Marx's specialty?
- Colleen Marx is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Colleen Marx located?
- Colleen Marx's practice location on file with NPPES is 800 Lakefront Way, Two Rivers, WI 54241-3301.
- What is Colleen Marx's phone number?
- The practice phone number listed in the NPPES registry for Colleen Marx is (920) 320-2436.
- Does Colleen Marx accept Medicare?
- Colleen Marx is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Colleen Marx's NPI active?
- Yes — Colleen Marx's NPI (1891808242) is active in the NPPES registry as of the last update on 2026-03-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.