Ann Zellner, MD
NPI 1902127327 · Family Medicine Physician · De Pere, WI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ann Zellner, MD is a Family Medicine Physician provider in De Pere, WI (NPI 1902127327).
Provider details
- NPI number
- 1902127327
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- P3802 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 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
351 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 128 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 118 | $125 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 44 | $89 |
| Manual Urinalysis Test With Examination Using Microscope, Automated81001 | 18 | $3 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 16 | $8 |
| Administration of Influenza Virus VaccineG0008 | 14 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 98 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 348 | 96 |
| Levothyroxine Sodium | 340 | 78 |
| Losartan Potassium | 288 | 72 |
| Amlodipine Besylate | 231 | 62 |
| Sertraline Hcl | 230 | 58 |
| Simvastatin | 211 | 54 |
| Lisinopril | 210 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-06-21
- Last updated
- 2016-09-12
Frequently asked questions
- What is Ann Zellner's NPI number?
- Ann Zellner's National Provider Identifier (NPI) is 1902127327, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ann Zellner's specialty?
- Ann Zellner is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ann Zellner located?
- Ann Zellner's practice location on file with NPPES is 3860 Monroe Rd, De Pere, WI 54115-8399.
- What is Ann Zellner's phone number?
- The practice phone number listed in the NPPES registry for Ann Zellner is (920) 496-4700.
- Does Ann Zellner accept Medicare?
- Ann Zellner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ann Zellner's NPI active?
- Yes — Ann Zellner's NPI (1902127327) is active in the NPPES registry as of the last update on 2016-09-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.