William Difilippo, MD
NPI 1023062353 · Nephrology Physician · Jamestown, NY
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Difilippo, MD is a Nephrology Physician provider in Jamestown, NY (NPI 1023062353).
Provider details
- NPI number
- 1023062353
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 219785-1 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
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
748 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) |
|---|---|---|
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 296 | $47 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 171 | $74 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 105 | $75 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 77 | $124 |
| Hemodialysis Procedure With Physician Evaluation90935 | 50 | $67 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 209 | 50 |
| Bumetanide | 125 | 27 |
| Furosemide | 103 | 30 |
| Hydralazine Hcl | 86 | 21 |
| Losartan Potassium | 66 | 16 |
| Allopurinol | 46 | 13 |
| Potassium Chloride | 44 | — |
| Potassium Citratebrand: Potassium Citrate Er |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$34 across 2 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
- 2006-05-20
- Last updated
- 2025-01-03
- Certified
- 2025-01-03
Frequently asked questions
- What is William Difilippo's NPI number?
- William Difilippo's National Provider Identifier (NPI) is 1023062353, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Difilippo's specialty?
- William Difilippo is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is William Difilippo located?
- William Difilippo's practice location on file with NPPES is 15 S Main St Ste 130, Jamestown, NY 14701-6626.
- What is William Difilippo's phone number?
- The practice phone number listed in the NPPES registry for William Difilippo is (716) 664-7725.
- Does William Difilippo accept Medicare?
- William Difilippo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Difilippo's NPI active?
- Yes — William Difilippo's NPI (1023062353) is active in the NPPES registry as of the last update on 2025-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.