JOSHUA OWCZARCZAK
NPI 1245818939
Internal Medicine in Buffalo, NY

Q: What is Joshua Owczarczak's NPI number?

The NPI number for Joshua Owczarczak is 1245818939. It was assigned to this individual provider in the NPPES registry on April 1, 2021.

Q: What is Joshua Owczarczak's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Joshua Owczarczak was last updated on November 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.

Active since April 01, 2021PECOS EnrolledAccepts Medicare Assignment

1001 MAIN ST FL 4, BUFFALO, NY 14203(716) 550-8361(716) 323-0585 Get Directions Write a Review

NPPES record last updated: November 10, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 10, 2025, Apr 1, 2021 (2 updates tracked since 2021).

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About Joshua Owczarczak NPPES

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

JOSHUA OWCZARCZAK (NPI 1245818939) is an individual internal medicine provider in Buffalo, New York, licensed in New York (333560) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with Kaleida Health, and maintains a secondary practice location in Buffalo.

NPPES Registry Identity

NPI1245818939

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameJOSHUA OWCZARCZAK

Location Address1001 MAIN ST FL 4Buffalo, NY 14203-1009

Mailing Address77 Goodell St Ste 310Buffalo, NY 14203-1243

Phone(716) 550-8361

Fax(716) 323-0585

Sole ProprietorNo

Medical School CMSState University Of New York At Buffalo School Of MedicineGraduated 2021

Enumeration DateApril 1, 2021

Last NPPES UpdateNovember 10, 20252 updates tracked since enumeration

NPPES CertifiedNovember 10, 2025

✔ NPI 1245818939 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in NY · 333560

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedPediatricsTaxonomy 208000000X · License 333560 (NY)

1001 MAIN ST FL 4, Buffalo, NY 14203

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Secondary Practice Location 1

Location 11050 Niagara StBuffalo, NY 14213-2001 · Phone (716) 768-7600

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

Joshua Owczarczak 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 ID9133629066

PECOS Enrollment IDI20250825001384

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

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

Kaleida Health

0.1 mi

General Acute Care Hospital

818 ELLICOTT ST
Buffalo, NY 14203

Reassigned Medicare billing, New York enrollment
676 clinicians in this Medicare group

NPI 1245365196 (716) 323-2000

Ub Family Medicine, Inc

9.6 mi

Family Medicine

850 HOPKINS RD
Williamsville, NY 14221

Reassigned Medicare billing, New York enrollment
63 clinicians in this Medicare group

NPI 1942294467 (716) 688-9641

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

Hospital Affiliations CMS Care Compare

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

Kaleida Health

Acute Care Hospitals · Buffalo, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330005

Location100 High StreetBuffalo, NY 14210 · Erie County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 14203 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.

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.

DR. MONA BONANNO M.D.

Pediatrics