Cassandra Zimmerman, DNP, ARNP
NPI 1649922410 · Primary Care Nurse Practitioner · Marion, IA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cassandra Zimmerman, DNP, ARNP is a Primary Care Nurse Practitioner provider in Marion, IA (NPI 1649922410).
Provider details
- NPI number
- 1649922410
- Entity type
- Individual
- Primary specialty
- Primary Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP, ARNP
- Sex
- Female
- Sole proprietor
- No
- License
- A166238 (IA)
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
4 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
639 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) |
|---|---|---|
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 127 | $49 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 117 | $71 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 76 | $101 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, First 20 Minutes99457 | 72 | $38 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 66 | $9 |
| Remote Monitoring of Physiologic Parameters, Initial Supply of Devices With Daily Recordings Or Programmed Alerts Transmission, Each 30 Days |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 68 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 129 | 34 |
| Atorvastatin Calcium | 104 | 37 |
| Omeprazole | 97 | 25 |
| Gabapentin | 86 | 21 |
| Lisinopril | 78 | 26 |
| Amlodipine Besylate | 70 | 21 |
| Alendronate Sodium | 52 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-01-24
- Last updated
- 2024-10-01
- Certified
- 2022-01-24
Frequently asked questions
- What is Cassandra Zimmerman's NPI number?
- Cassandra Zimmerman's National Provider Identifier (NPI) is 1649922410, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassandra Zimmerman's specialty?
- Cassandra Zimmerman is listed in the NPPES registry with a primary specialty of Primary Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Cassandra Zimmerman located?
- Cassandra Zimmerman's practice location on file with NPPES is Unitypoint Clinic Family Medicine Tower Terrace, Marion, IA 52302.
- What is Cassandra Zimmerman's phone number?
- The practice phone number listed in the NPPES registry for Cassandra Zimmerman is (319) 206-7370.
- Does Cassandra Zimmerman accept Medicare?
- Cassandra Zimmerman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cassandra Zimmerman's NPI active?
- Yes — Cassandra Zimmerman's NPI (1649922410) is active in the NPPES registry as of the last update on 2024-10-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.