William Platzer, MD
NPI 1386733442 · Internal Medicine Physician · Geneva, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Platzer, MD is a Internal Medicine Physician provider in Geneva, NY (NPI 1386733442).
Provider details
- NPI number
- 1386733442
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 116903 (NY)
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
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
306 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 | 266 | $127 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 21 | $87 |
| Administration of Influenza Virus VaccineG0008 | 19 | $31 |
Typical Medicare-allowed amounts for these services range $31–$127 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 149 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 706 | 190 |
| Amlodipine Besylate | 666 | 162 |
| Levothyroxine Sodium | 643 | 143 |
| Lisinopril | 604 | 155 |
| Losartan Potassium | 459 | 115 |
| Metformin Hcl | 368 | 100 |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-12
- Last updated
- 2025-07-10
- Certified
- 2025-07-10
Frequently asked questions
- What is William Platzer's NPI number?
- William Platzer's National Provider Identifier (NPI) is 1386733442, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Platzer's specialty?
- William Platzer is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Platzer located?
- William Platzer's practice location on file with NPPES is 200 North St Ste 301, Geneva, NY 14456-1561.
- What is William Platzer's phone number?
- The practice phone number listed in the NPPES registry for William Platzer is (315) 787-5445.
- Does William Platzer accept Medicare?
- William Platzer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Platzer's NPI active?
- Yes — William Platzer's NPI (1386733442) is active in the NPPES registry as of the last update on 2025-07-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.