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OSCAR S. LOPEZ MD
NPI 1558315879
Psychiatry & Neurology - Psychiatry in Williamsville, NY

Active since May 20, 2006PECOS Enrolled
531 FARBER LAKES DR, WILLIAMSVILLE, NY 14221(716) 632-5450 Get Directions Write a Review

NPPES record last updated: August 9, 2013. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Oscar S. Lopez Md NPPES

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

OSCAR S. LOPEZ MD (NPI 1558315879) is an individual psychiatry provider in Williamsville, New York, licensed in New York (MD 098285) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1558315879
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameOSCAR S. LOPEZCredential: MD
Location Address531 FARBER LAKES DRWilliamsville, NY 14221-5773
Mailing Address531 Farber Lakes DrWilliamsville, NY 14221-5773 · (716) 632-5450
Phone(716) 632-5450
Sole ProprietorYes
Enumeration DateMay 20, 2006
Last NPPES UpdateAugust 9, 2013
✔ NPI 1558315879 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
Licenses✔ Licensed in NY · MD 098285✔ Licensed in NY · 098285
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
531 FARBER LAKES DR, Williamsville, NY 14221
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Other Names 1

Professional Name (2)Oscar S Lopez Md

Other Identifiers 3

Medicare UPINB71249NY
Medicaid00594876NY
Medicare UPINB71249

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Oscar S. Lopez Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Oscar Lopez reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Sisters Of Charity Hospital Of Buffalo New York
4.9 mi
General Acute Care Hospital
2605 HARLEM RD
Cheektowaga, NY 14225
  • Reassigned Medicare billing, New York enrollment
  • 515 clinicians in this Medicare group
NPI 1043455199 (716) 891-2400
Chs Neuroscience Group
9.7 mi
Neurology
565 ABBOTT RD
Buffalo, NY 14220
  • Reassigned Medicare billing, New York enrollment
  • Medicare enrollment name: Mercy Hospital Of Buffalo
  • 499 clinicians in this Medicare group
NPI 1972883304 (716) 826-7000

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 14221 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
$166.88 typical visit price
range $54.87 – $166.88
Typical copayment $41.72 (range $13.71 – $41.72)
Most-billed visit code 99205
Established Patient
$68.57 typical visit price
range $17.54 – $136.14
Typical copayment $17.14 (range $4.38 – $34.03)
Most-billed visit code 99213
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 17

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

JACOB HENRY SMIELECKI
Social Worker
531 FARBER LAKES DR
WILLIAMSVILLE, NY 14221
Erie County (716) 895-6700
CAITLYN RENEE WEIGAND
Counselor
531 FARBER LAKES DR
BUFFALO, NY 14221
Erie County (716) 392-5241
MRS. MONICA LINSEMAN LMSW
Social Worker
531 FARBER LAKES DR
WILLIAMSVILLE, NY 14221
Erie County (716) 632-5450
MS. ALYCIA KRZYKOWSKI LMHC
Counselor (Mental Health)
531 FARBER LAKES DR, SUITE 201
WILLIAMSVILLE, NY 14221
Erie County (716) 632-5450
EAR,NOSE&THROAT CARE OF WNY PC
Otolaryngology
531 FARBER LAKES DR
WILLIAMSVILLE, NY 14221
Erie County (716) 634-6224
ERIE,NIAGARA TONAWANDA MEDICAL ASSOCIATES PC
Otolaryngology
531 FARBER LAKES DR
WILLIAMSVILLE, NY 14221
Erie County (716) 634-6224
MS. TAMMY D. OWENS NP
Nurse Practitioner (Psychiatric/Mental Health)
531 FARBER LAKES DR
BUFFALO, NY 14221
Erie County (716) 633-1927
DOMONICA HOWARD MHC, MFT
Counselor
531 FARBER LAKES DR
BUFFALO, NY 14221
Erie County (716) 895-6700

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 Oscar Lopez's NPI number?

The NPI number for Oscar Lopez is 1558315879. It was assigned to this individual provider in the NPPES registry on May 20, 2006. The provider is also known as Oscar S Lopez MD.

Where is Oscar Lopez located?

Oscar Lopez practices at 531 Farber Lakes Dr, Williamsville, NY 14221. The listed phone number is (716) 632-5450.

What is Oscar Lopez's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Oscar Lopez enrolled in Medicare?

Yes. Oscar Lopez is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Oscar Lopez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Oscar Lopez reassigns Medicare benefits to 2 organizations: Sisters Of Charity Hospital Of Buffalo New York (Cheektowaga, NY) and Chs Neuroscience Group (Buffalo, NY). 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 Oscar Lopez'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 Oscar Lopez was last updated on August 9, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years 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.