William Zimmerman, DO
NPI 1285803627 · Urology Physician · East Lansing, MI
Enrolled with Medicare as Practitioner - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Zimmerman, DO is a Urology Physician provider in East Lansing, MI (NPI 1285803627).
Provider details
- NPI number
- 1285803627
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 5101016094 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 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
867 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) |
|---|---|---|
| Ultrasound Measurement of Bladder Capacity After Voiding51798 | 213 | $11 |
| Automated Urinalysis Test81003 | 194 | $2 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 137 | $90 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 102 | $125 |
| Electronic Assessment of Bladder Emptying51741 | 40 | $12 |
| Imaging of Urinary Tract Following Injection of a Contrast Agent74420 | 40 | $24 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 513 | 167 |
| Finasteride | 229 | 80 |
| Vibegronbrand: Gemtesa | 80 | 22 |
| Mirabegronbrand: Myrbetriq | 59 | 14 |
| Alfuzosin Hclbrand: Alfuzosin Hcl Er | 54 | — |
| Trospium Chloridebrand: Trospium Chloride Er | 39 | 14 |
| Oxybutynin Chloridebrand: Oxybutynin Chloride Er |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$462 across 9 records (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
- 2008-02-28
- Last updated
- 2024-10-22
- Certified
- 2024-10-22
Frequently asked questions
- What is William Zimmerman's NPI number?
- William Zimmerman's National Provider Identifier (NPI) is 1285803627, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Zimmerman's specialty?
- William Zimmerman is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is William Zimmerman located?
- William Zimmerman's practice location on file with NPPES is 4660 S Hagadorn Rd Ste 600, East Lansing, MI 48823-5383.
- What is William Zimmerman's phone number?
- The practice phone number listed in the NPPES registry for William Zimmerman is (517) 355-4205.
- Does William Zimmerman accept Medicare?
- William Zimmerman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Zimmerman's NPI active?
- Yes — William Zimmerman's NPI (1285803627) is active in the NPPES registry as of the last update on 2024-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.