Dr. William Difilippo, MD

  • Jamestown, NY
  • Nephrologist
NPI1023062353PAC ID2466424452
Medicare services, 2024
748
Medicare patients, 2024
296
Part D claims, 2024
1,275
Publications
8
Clinical trials
1
Practice address
207 Foote Avenue, Jamestown, NY 14701
Practice phone
Call (716) 487-0141
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UPMC Chautauqua

Hospital · Jamestown, New York

See all 9 affiliations

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Dr. William Difilippo is a nephrologist in Jamestown, New York

Dr. Difilippo practices at UPMC Chautauqua in Jamestown, New York, part of University of Pittsburgh Medical Center.

Dr. Difilippo's NPI, 1023062353, was assigned on May 20, 2006. Dr. Difilippo graduated from St. George's University School of Medicine in 1988. Dr. Difilippo holds Pennsylvania license MD430288.

NPI and contact details
Medicare PAC ID
2466424452
NPI enumeration date
May 20, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(716) 487-0141
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
64
Medical school graduation
1988

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. William Difilippo practices at UPMC Chautauqua in Jamestown, New York

Dr. Difilippo's primary practice is UPMC Chautauqua, at 207 Foote Avenue, Jamestown, NY 14701 in Chautauqua County. The practice phone is (716) 487-0141.

  • UPMC Chautauqua
    207 Foote Avenue, Jamestown, NY 14701 · Chautauqua CountyPhone(716) 487-0141

Source: Dmand AI Affiliation Data

Dr. William Difilippo is affiliated with 7 sites of care and 2 medical groups

Dr. Difilippo's primary practice is UPMC Chautauqua in Jamestown, New York, part of University of Pittsburgh Medical Center. Dr. Difilippo is also affiliated with WVU Medicine Uniontown Hospital. The medical group on file is UPMC Hamot. Dmand AI also links Dr. Difilippo to 2 more hospitals, 2 dialysis centers, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 9 affiliations for Dr. Difilippo

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. William Difilippo's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Difilippo practices, 7 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UPMC ChautauquaAvailable with a free account
+6 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. William Difilippo is one of 914 nephrologists in New York

Nephrology is Dr. Difilippo's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Difilippo is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Difilippo's licenses on file in 5 states: Pennsylvania, New York, Ohio, West Virginia and New Jersey.

Specialties and state licenses

  • Nephrology, PennsylvaniaPrimaryLicense MD430288 · 2006 to 2026 · taxonomy 207RN0300X
  • Specialist, New YorkLicense 219785-1 · 2000 to 2026 · taxonomy 174400000X
  • Ohio license2021 to 2023
  • West Virginia license1996 to 2018
  • New Jersey license1992 to 2001

Clinical focus

Dmand AI lists acute kidney failure, chronic kidney disease, fluid and electrolyte imbalances, hypercalcemia, kidney cysts and parathyroid gland disorder among the conditions Dr. Difilippo treats.

Nephrologists near Dr. Difilippo

Counts of nephrologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. William Difilippo billed Medicare for 748 services in 2024

CMS data shows 748 Medicare services from Dr. Difilippo across 6 procedure codes in 2024, for 296 Medicare patients. Medicare paid $42,245 for them.

Medicare services, 2024748
Medicare patients296
Paid by Medicare$42,245
Procedure codes6

Dr. Difilippo's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 7502024: 6987%
Tests and treatments
2023: 1242024: 5060%

Where Dr. Difilippo's Medicare services took place, 2024

  • In an office17123%
  • In a facility57777%

Dr. Difilippo compared with the New York median for nephrologists, 2024

  • Dr. Difilippo
  • New York median
Medicare services
748vs 6899% above
Medicare patients
296vs 21736% above
Part D claims
1,135vs 4362.6 times

Medians across 892 nephrologists in New York with Dmand AI profiles that report each measure.

Dr. Difilippo's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Difilippo

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Difilippo and other nephrologists in New York.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. William Difilippo treated 296 Medicare patients in 2024, average age 75

CMS counts 296 Medicare patients who saw Dr. Difilippo in 2024. The largest group is 65 to 74, with 114 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 21% are also on Medicaid. Their average risk score is 3.32, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Difilippo's median patient age at 74, with 50% women.

Medicare patients, 2024296
Average age75
Average risk score3.32
Also on Medicaid21%

Dr. Difilippo's Medicare patients by age, 2024

Dr. Difilippo's Medicare patients by sex, 2024

  • Women14248%
  • Men15452%

Chronic conditions among Dr. Difilippo's Medicare patients, 2024

  1. Chronic kidney disease75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Diabetes62%
  5. Arthritis57%
  6. Heart failure55%
  7. Ischemic heart disease53%
  8. Mood disorders41%

Share of Medicare patients with each condition. A patient can have several.

Dr. Difilippo's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 74

Patient panel by sex, all payers

  • Women50%
  • Men49%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. William Difilippo wrote 1,275 Medicare Part D claims in 2024

In 2024, Dr. Difilippo wrote 1,275 Medicare Part D claims for 194 patients. 91% of them were for generic drugs. CMS names the drug for 1,135 of them, across 29 drugs with 11 or more claims each, at $84,006 in total drug cost. In 2023, CMS named 632 claims across 19 drugs.

Part D claims, 20241,275
Drugs named by CMS29
Total drug cost$84,006
Part D patients194

Dr. Difilippo's Part D claims by kind of drug, 2024

  • Generic1,159 claims91%
  • Brand-name116 claims9%

Dr. Difilippo's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Difilippo's Part D claims, 2024

  • Antibiotics2%26 of 1,275 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 6322024: 1,13580%

Drugs named by CMS: 29 in 2024, 19 in 2023.

See all prescribing by Dr. Difilippo

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Dr. William Difilippo takes part in Medicare

Dr. Difilippo accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

For MedTech and pharma teams

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Dr. William Difilippo has 8 publications on record

Dmand AI links 8 papers to Dr. Difilippo, published from 2010 to 2018. 2018 was the busiest year, with 2. Dr. Difilippo has published most often in Cureus. Dr. Difilippo's most frequent co-authors are Ion D. Bucaloiu, MD, Evan R. Norfolk, MD and Edward J. Gorak, DO.

Papers8
Years published2010 to 2018

Dr. Difilippo's papers by year, 2010 to 2018

Dr. Difilippo's most frequent co-authors

Recent publications by Dr. Difilippo

See all 8 publications and co-authors

See who Dr. Difilippo researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Difilippo works with, so you can find a warm path to the right nephrologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. William Difilippo has worked on 1 clinical trial

Dmand AI links Dr. Difilippo to 1 clinical trial.

Investigators on the most trials with Dr. Difilippo

Recent clinical trials with Dr. Difilippo

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. William Difilippo received $412 in industry payments from 2019 to 2024

CMS Open Payments shows 20 general payments to Dr. Difilippo from 9 drug and device companies from 2019 to 2024. Food and beverage make up the largest share, 84% of the total. Akebia Therapeutics Inc paid the most, $97.

General payments to Dr. Difilippo by program year, 2019 to 2024

General payments to Dr. Difilippo by kind, 2019 to 2024

$412in total
  • Food and beverage$34884%
  • Education$6416%

Companies that paid Dr. Difilippo the most, 2019 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Difilippo

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. William Difilippo has 1 award and honors on record

Dmand AI lists 1 award for Dr. Difilippo, most recently CMS Stage 1 EHR in 2012.

Awards and honors for Dr. Difilippo

  1. 2012
    • CMS Stage 1 EHR

Source: Dmand AI Professional Profile Data

Dr. William Difilippo graduated from St. George's University School of Medicine

Dr. Difilippo graduated from St. George's University School of Medicine in 1988. Dr. Difilippo is a member of ASH, ASN and NKF.

  1. Medical schoolSt. George's University School of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine
  3. Board certified in nephrologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. William Difilippo accepts plans from 12 insurance carriers

Dr. Difilippo is in network with 12 carriers, including Aetna, Highmark and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

  • Aetna
  • Highmark
  • Blue Cross Blue Shield of Michigan
  • Cigna
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • Amerihealth Caritas
  • +4 more carriersWith a free account

Plan types Dr. Difilippo accepts, by number of carriers

  1. Medicare8
  2. PPO7
  3. HMO4
  4. Medicaid3
  5. POS3
  6. EPO2

Source: Dmand AI Insurance Network Data

Sources for Dr. William Difilippo's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. William Difilippo

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. William Difilippo's NPI number?

Dr. William Difilippo's NPI number is 1023062353. It was assigned on May 20, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. William Difilippo?

Dr. William Difilippo is a nephrologist in Jamestown, New York. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).

Where does Dr. William Difilippo practice?

Dr. Difilippo practices at 207 Foote Avenue, Jamestown, NY 14701. Dr. Difilippo's primary practice is UPMC Chautauqua in Jamestown, New York, part of University of Pittsburgh Medical Center. Dmand AI also links Dr. Difilippo to 2 hospitals, 2 dialysis centers, 1 group practice or clinic and 1 medical group.

What is Dr. William Difilippo's office phone number?

The practice phone on file for Dr. Difilippo is (716) 487-0141.

What is Dr. William Difilippo's medical license number?

Dr. Difilippo holds Pennsylvania license MD430288, one of the licenses on file in 5 states.

Which states has Dr. William Difilippo been licensed in?

Dmand AI has state licenses on file for Dr. Difilippo in Pennsylvania (2006 to 2026), New York (2000 to 2026), Ohio (2021 to 2023), West Virginia (1996 to 2018) and New Jersey (1992 to 2001).

Which hospitals is Dr. William Difilippo affiliated with?

Dr. Difilippo practices at UPMC Chautauqua in Jamestown, New York. Dr. Difilippo is also affiliated with WVU Medicine Uniontown Hospital. Dmand AI links Dr. Difilippo to 2 more hospitals.

What medical group is Dr. William Difilippo part of?

Dr. Difilippo is linked to UPMC Hamot. Dmand AI links Dr. Difilippo to 1 more medical group.

Does Dr. William Difilippo accept Medicare?

Yes. CMS data shows Dr. Difilippo billed Medicare for 748 services in 2024, and Dr. Difilippo accepts Medicare assignment.

How many Medicare patients does Dr. William Difilippo see?

CMS counts 296 Medicare patients who saw Dr. Difilippo in 2024, with an average age of 75.

Show 9 more questionsShow fewer questions

Is Dr. William Difilippo board certified?

Yes. Dr. Difilippo is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. William Difilippo bill to Medicare?

In 2024, Dr. Difilippo's most billed Medicare services were hospital inpatient care (99231), office visit, established patient (99213) and hospital inpatient care (99232).

Where did Dr. William Difilippo go to medical school?

Dr. Difilippo graduated from St. George's University School of Medicine in 1988.

What drugs does Dr. William Difilippo prescribe most?

In 2024 Medicare Part D data, Dr. Difilippo's most prescribed drugs by claims were Amlodipine Besylate, Bumetanide and Furosemide.

Has Dr. William Difilippo received payments from drug or device companies?

CMS Open Payments shows $412 in general payments to Dr. Difilippo from 9 companies from 2019 to 2024. The largest total came from Akebia Therapeutics Inc.

How long has Dr. William Difilippo been practicing?

Dr. Difilippo graduated from medical school in 1988, 38 years ago.

Does Dr. William Difilippo do research?

Dmand AI links 8 publications to Dr. Difilippo, published from 2010 to 2018. Dr. Difilippo has worked on 1 clinical trial.

Who does Dr. William Difilippo publish with?

Dr. Difilippo's most frequent co-authors are Ion D. Bucaloiu, MD (2 shared papers), Evan R. Norfolk, MD (2 shared papers) and Edward J. Gorak, DO (1 shared paper).

What insurance does Dr. William Difilippo accept?

Dr. Difilippo is in network with 12 carriers, including Aetna, Highmark and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

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