1. Home
  2. Directory
  3. New York
  4. Wellsville
  5. Nurse Practitioner
  6. NPI Profile

DENNIS NATHAN CONTRERAS
NPI 1881587657
Nurse Practitioner - Family in Wellsville, NY

Active since May 31, 2025PECOS EnrolledAccepts Medicare Assignment
191 N MAIN ST, WELLSVILLE, NY 14895(585) 991-8841 Get Directions Write a Review

NPPES record last updated: February 20, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 13, 2025, May 31, 2025 (2 updates tracked since 2025).

About Dennis Nathan Contreras NPPES

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

DENNIS NATHAN CONTRERAS (NPI 1881587657) is an individual family provider in Wellsville, New York, licensed in New York (357108) and active in the NPI registry since May 2025. He is enrolled in Medicare PECOS and is a graduate of Other (2025).

NPPES Registry Identity

NPI1881587657
Entity TypeIndividualMale
Primary Taxonomy363LF0000X
Provider Legal NameDENNIS NATHAN CONTRERAS
Location Address191 N MAIN STWellsville, NY 14895-1150
Mailing Address10267 State Route 36Dansville, NY 14437-9460 · (585) 991-8841
Phone(585) 991-8841
Sole ProprietorYes
Medical School CMSOtherGraduated 2025
Enumeration DateMay 31, 2025
Last NPPES UpdateFebruary 20, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 20, 2026
✔ NPI 1881587657 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in NY · 357108
191 N MAIN ST, Wellsville, NY 14895
Open in Google Maps ↗

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

Dennis Nathan Contreras 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 ID446720544
PECOS Enrollment IDI20260529002993
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 Reassignment

Medicare enrollment records show Dennis Contreras reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

The Memorial Hospital Of William F. And Gertrude F. Jones, Inc.
Same address
General Acute Care Hospital
191 N MAIN ST
Wellsville, NY 14895
  • Reassigned Medicare billing, New York enrollment
  • 233 clinicians in this Medicare group
NPI 1720030703 (585) 593-1100

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 14895 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
$84.93 typical visit price
range $54.87 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
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.

Other Providers at the Same Location NPPES 20

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

ALI MANSOUR
Orthopaedic Surgery
191 N MAIN ST
WELLSVILLE, NY 14895
Allegany County (585) 593-1100
KAITLYN MICHELE COONEY
Physical Therapist
191 N MAIN ST
WELLSVILLE, NY 14895
Allegany County (585) 596-4011
AISHWARYA BHARDWAJ M.D.
Internal Medicine (Cardiovascular Disease)
191 N MAIN ST
WELLSVILLE, NY 14895
Allegany County (585) 596-0134
DR. TAMARA ANN PRULL MD
Emergency Medicine (Emergency Medical Services)
191 N MAIN ST
WELLSVILLE, NY 14895
Allegany County (585) 247-6810
MR. JUSTIN MOYER PT, DPT
Physical Therapist (Orthopedic)
191 N MAIN ST
WELLSVILLE, NY 14895
Allegany County (585) 596-4011
MS. DEBBIE CUNNINGHAM LESTER COTA/L
Occupational Therapy Assistant
191 N MAIN ST
WELLSVILLE, NY 14895
Allegany County (585) 596-4011
MRS. LONA L DOWNEY
Occupational Therapist
191 N MAIN ST
WELLSVILLE, NY 14895
Allegany County (585) 593-1100
MRS. CHRISTINE FORSBERG HART P.T.
Physical Therapist
191 N MAIN ST
WELLSVILLE, NY 14895
Allegany County (585) 596-4011

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 Dennis Contreras's NPI number?

The NPI number for Dennis Contreras is 1881587657. It was assigned to this individual provider in the NPPES registry on May 31, 2025.

Where is Dennis Contreras located?

Dennis Contreras practices at 191 N Main St, Wellsville, NY 14895. The listed phone number is (585) 991-8841.

What is Dennis Contreras's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Dennis Contreras enrolled in Medicare?

Yes. Dennis Contreras 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 organization bills Medicare for Dennis Contreras's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Dennis Contreras reassigns Medicare benefits to The Memorial Hospital Of William F. And Gertrude F. Jones, Inc. (Wellsville, NY). The 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 Dennis Contreras's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Dennis Contreras was last updated on February 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.