William Stephan, MD
NPI 1952370173 · Family Medicine Physician · Tonawanda, NY
William Stephan, MD is a Family Medicine Physician provider in Tonawanda, NY (NPI 1952370173).
Provider details
- NPI number
- 1952370173
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 171247 (NY)
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
20 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
316 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 130 | $85 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 92 | $120 |
| Telephone Medical Discussion With Physician, 5-10 Minutes99441 | 34 | $47 |
| Office Or Other Outpatient Visit for the Evaluation and Management of Established Patient That May Not Require Presence of Healthcare Professional99211 | 18 | $22 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 16 | $14 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 206 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 615 | 148 |
| Telmisartan | 360 | 93 |
| Rosuvastatin Calcium | 294 | 90 |
| Metoprolol Succinate | 281 | 85 |
| Pantoprazole Sodium | 247 | 71 |
| Potassium Chloride | 243 | 54 |
| Omeprazole | 239 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,732 across 218 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
- 2006-03-17
- Last updated
- 2019-08-19
Frequently asked questions
- What is William Stephan's NPI number?
- William Stephan's National Provider Identifier (NPI) is 1952370173, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Stephan's specialty?
- William Stephan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Stephan located?
- William Stephan's practice location on file with NPPES is 4080 Delaware Ave, Tonawanda, NY 14150-3516.
- What is William Stephan's phone number?
- The practice phone number listed in the NPPES registry for William Stephan is (716) 875-7399.
- Is William Stephan's NPI active?
- Yes — William Stephan's NPI (1952370173) is active in the NPPES registry as of the last update on 2019-08-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.