Corey Alexander Stack , PA
Physician Assistant β’ Lockport, NY
5801 S Transit Rd
Lockport, NY 140945811
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
5801 S Transit Rd
Lockport, NY 140945811
CMS Doctors and Clinicians lists 1 group name: Wellnow Urgent Care, P.C.. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2025
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2021β2025.
Years since graduation
1 years (graduated 2025)
CMS Doctors and Clinicians data list 2025 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2025
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Corey Stack has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Corey Stack as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Lockport and New York
20 active clinicians are listed under Physician Assistant with a practice address in Lockport, NY (15,558 in New York).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Lockport
10% of these 20 clinicians have the CMS telehealth indicator.
50% of these 20 clinicians are listed by CMS as accepting Medicare assignment.
Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-05-22NUCC Taxonomy Code: 363A00000X
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20251001000822
NY
1557867348
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Wellnow Urgent Care, P.c.
3980 Sheridan Dr, Amherst, NY 142261727
Phone: 7169292800
Wellnow Urgent Care, P.c.
7375 Oswego Rd, Liverpool, NY 130903717
Phone: 3152910064
Wellnow Urgent Care, P.c.
5495 Sheridan Dr, Buffalo, NY 142213609
Phone: 7169321198
Wellnow Urgent Care, P.c.
3190 Niagara Falls Bvld, Amherst, NY 142281639
Phone: 7167998190
Wellnow Urgent Care, P.c.
3450 Union Rd, Cheektowaga, NY 142255120
Phone: 7163952043
Wellnow Urgent Care, P.c.
5965 Transit Rd, East Amherst, NY 140511874
Phone: 7163621093
Wellnow Urgent Care, P.c.
2340 Grand Island Blvd, Grand Island, NY 140723113
Phone: 7164033731
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physician Assistant
Physician Assistant
Career & Practice History
NPI enumerated May 22, 2025.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from June 2025 to August 2026.
NPI Administrative Meta
Other Physician Assistants in Lockport
- Jordan Lasky, PA
- Mary Schriever
- Maria Dziekan, PA-C
- Jessica Stengel, PA
- David Russell, RPA-C
- Madison Durham, PA
Mailing Address
480 Aberdeen Rd
Lewiston, NY 140921023
Phone: 8305637390