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WILLIAM DIFILIPPO MD
NPI 1023062353
Internal Medicine - Nephrology in Jamestown, NY

Active since May 20, 2006PECOS EnrolledAccepts Medicare Assignment
15 S MAIN ST STE 130, JAMESTOWN, NY 14701(716) 664-7725(716) 664-9241 Get Directions Write a Review

NPPES record last updated: January 3, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 3, 2025, May 17, 2024, Nov 15, 2021 and 1 more (4 updates tracked since 2017).

About William Difilippo Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM DIFILIPPO MD (NPI 1023062353) is an individual nephrology provider in Jamestown, New York, licensed in Pennsylvania (MD430288) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Brooks-tlc Hospital System, Inc, and is a graduate of Other (1988).

NPPES Registry Identity

NPI1023062353
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameWILLIAM DIFILIPPOCredential: MD
Location Address15 S MAIN ST STE 130Jamestown, NY 14701-6626
Mailing Address15 S Main St Ste 130Jamestown, NY 14701-6626 · (716) 664-7725 · Fax (716) 664-9241
Phone(716) 664-7725
Fax(716) 664-9241
Sole ProprietorNo
Medical School CMSOtherGraduated 1988
Enumeration DateMay 20, 2006
Last NPPES UpdateJanuary 3, 20254 updates tracked since enumeration
NPPES CertifiedJanuary 3, 2025
✔ NPI 1023062353 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in PA · MD430288
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Also ListedSpecialistTaxonomy 174400000X · License 219785-1 (NY)
15 S MAIN ST STE 130, Jamestown, NY 14701
Open in Google Maps ↗

Other Identifiers 3

Medicaid0016863990017PA
Medicaid02107899NY
Medicaid16863990002PA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

William Difilippo Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2466424452
PECOS Enrollment IDI20151026000019
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show William Difilippo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Great Lakes Physician Practice PC
Same address
Internal Medicine
15 S MAIN ST
Jamestown, NY 14701
  • Reassigned Medicare billing, New York enrollment
  • 233 clinicians in this Medicare group
NPI 1730599176 (716) 488-1877
Regional Health Services Inc
44 mi
Family Medicine
201 STATE ST
Erie, PA 16550
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 962 clinicians in this Medicare group
NPI 1174520654 (814) 877-8140

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
296 services122 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
171 services108 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
105 services51 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
77 services69 patients
Hemodialysis procedure with physician evaluation 90935
Hemodialysis is a treatment that uses a machine to filter waste and excess fluid from your blood when your kidneys can't. A physician checks your health before, during, and after the procedure to ensure it's working effectively for you.
50 services23 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
49 services46 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Brooks-Tlc Hospital System, Inc

Acute Care Hospitals · Dunkirk, NY
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330229
Location529 Central AvenueDunkirk, NY 14048 · Chautauqua County
Emergency services

Upmc Chautauqua At Wca

Acute Care Hospitals · Jamestown, NY
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330239
Location207 Foote AvenueJamestown, NY 14701 · Chautauqua County
Emergency services Birthing friendly

Uniontown Hospital

Acute Care Hospitals · Uniontown, PA
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390041
Location500 West Berkeley StreetUniontown, PA 15401 · Fayette County
Emergency services

Warren General Hospital

Acute Care Hospitals · Warren, PA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390146
LocationTwo Crescent Park WestWarren, PA 16365 · Warren County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 14701 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.40 typical visit price
range $54.87 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$97.08 typical visit price
range $17.54 – $136.14
Typical copayment $24.27 (range $4.38 – $34.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512
Treatment-Chemotherapy · category RH012N
1 supplier16 claims16 services$12.57 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

HARRIS TOM JOSEPH M.D.
Internal Medicine (Nephrology)
15 S MAIN ST STE 130
JAMESTOWN, NY 14701
Chautauqua County (716) 664-7725
ROBERT KOSALKA MD
Internal Medicine (Nephrology)
15 S MAIN ST STE 130
JAMESTOWN, NY 14701
Chautauqua County (716) 664-7725

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Difilippo's NPI number?

The NPI number for William Difilippo is 1023062353. It was assigned to this individual provider in the NPPES registry on May 20, 2006.

Where is William Difilippo located?

William Difilippo practices at 15 S Main St Ste 130, Jamestown, NY 14701. The listed phone number is (716) 664-7725.

What is William Difilippo's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is William Difilippo enrolled in Medicare?

Yes. William Difilippo is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for William Difilippo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Difilippo reassigns Medicare benefits to 2 organizations: Great Lakes Physician Practice PC (Jamestown, NY) and Regional Health Services Inc (Erie, PA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Difilippo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is William Difilippo affiliated with any hospitals?

According to CMS data, William Difilippo is affiliated with Brooks-Tlc Hospital System, Inc, Upmc Chautauqua At Wca, Uniontown Hospital and Warren General Hospital.

When was this NPI record last updated?

The NPPES record for William Difilippo was last updated on January 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.