Charlene Vander Zanden, M.D.
NPI 1235339532 · Internal Medicine Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charlene Vander Zanden, M.D. is a Internal Medicine Physician provider in Milwaukee, WI (NPI 1235339532).
Provider details
- NPI number
- 1235339532
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 54553-20 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 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
384 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 180 | $121 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 77 | $122 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 62 | $85 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 27 | $164 |
| Administration of Influenza Virus VaccineG0008 | 21 | $30 |
| 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 · 64 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 275 | 86 |
| Losartan Potassium | 150 | 46 |
| Amlodipine Besylate | 139 | 42 |
| Levothyroxine Sodium | 129 | 36 |
| Rosuvastatin Calcium | 116 | 37 |
| Lisinopril | 105 | 30 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-07-24
- Last updated
- 2014-02-10
Frequently asked questions
- What is Charlene Vander Zanden's NPI number?
- Charlene Vander Zanden's National Provider Identifier (NPI) is 1235339532, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charlene Vander Zanden's specialty?
- Charlene Vander Zanden is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charlene Vander Zanden located?
- Charlene Vander Zanden's practice location on file with NPPES is 1155 N Mayfair Rd, Milwaukee, WI 53226-3462.
- What is Charlene Vander Zanden's phone number?
- The practice phone number listed in the NPPES registry for Charlene Vander Zanden is (414) 955-5990.
- Does Charlene Vander Zanden accept Medicare?
- Charlene Vander Zanden is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charlene Vander Zanden's NPI active?
- Yes — Charlene Vander Zanden's NPI (1235339532) is active in the NPPES registry as of the last update on 2014-02-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.