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MS. ALICIA NICOLE GAYLEEN RYAN M.D.
NPI 1134865850
Student in an Organized Health Care Education/Training Program in Buffalo, NY

Active since May 05, 2022PECOS Enrolled
818 ELLICOTT ST., BUFFALO, NY 14203(716) 323-2000 Get Directions Write a Review

NPPES record last updated: February 17, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 11, 2025, Apr 7, 2025, Feb 17, 2023 and 1 more (4 updates tracked since 2022).

About Ms. Alicia Nicole Gayleen Ryan M.d. NPPES

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

MS. ALICIA NICOLE GAYLEEN RYAN M.D. (NPI 1134865850) is an individual student in an organized health care education/training program in Buffalo, New York and active in the NPI registry since May 2022. She is enrolled in Medicare PECOS and maintains a secondary practice location in Williamsville.

NPPES Registry Identity

NPI1134865850
Entity TypeIndividualFemale
Primary Taxonomy390200000X
Provider Legal NameMS. ALICIA NICOLE GAYLEEN RYANCredential: M.D.
Location Address818 ELLICOTT ST.Buffalo, NY 14203
Mailing Address818 Ellicott St.Buffalo, NY 14203 · (716) 323-2000
Phone(716) 323-2000
Sole ProprietorNo
Enumeration DateMay 5, 2022
Last NPPES UpdateFebruary 17, 20234 updates tracked since enumeration
NPPES CertifiedFebruary 17, 2023
✔ NPI 1134865850 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyStudent in an Organized Health Care Education/Training ProgramStudent, Health Care
Taxonomy Code390200000X
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
818 ELLICOTT ST., Buffalo, NY 14203
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Secondary Practice Location 1

Location 11540 Maple RdWilliamsville, NY 14221-3647 · Phone (716) 568-3600 · Fax (716) 323-0292

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Alicia Nicole Gayleen Ryan M.d. 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 Alicia Ryan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University At Buffalo Pediatric Associates Inc
0.1 mi
Pediatrics
1001 MAIN ST FL 4
Buffalo, NY 14203
  • Reassigned Medicare billing, New York enrollment
  • 217 clinicians in this Medicare group
NPI 1912928599 (716) 323-0225
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

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

Other Providers at the Same Location NPPES 4

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

MR. JOSHUA MICHAEL THOMAS CRNA
Nurse Anesthetist, Certified Registered
818 ELLICOTT ST.
BUFFALO, NY 14203
Erie County (716) 323-6570
BAIBA SENBRUNA MD
Anesthesiology
818 ELLICOTT ST.
BUFFALO, NY 14203
Erie County (713) 323-6570
STEFANIE MCCAULEY CRNA
Nurse Anesthetist, Certified Registered
818 ELLICOTT ST.
BUFFALO, NY 14203
Erie County (716) 323-6570
CYRUS TANHAEE M.D.
Anesthesiology
818 ELLICOTT ST.
BUFFALO, NY 14203
Erie County (716) 323-6570

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 Alicia Ryan's NPI number?

The NPI number for Alicia Ryan is 1134865850. It was assigned to this individual provider in the NPPES registry on May 5, 2022.

Where is Alicia Ryan located?

Alicia Ryan practices at 818 Ellicott St., Buffalo, NY 14203. The listed phone number is (716) 323-2000.

What is Alicia Ryan's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

Is Alicia Ryan enrolled in Medicare?

Yes. Alicia Ryan is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Alicia Ryan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alicia Ryan reassigns Medicare benefits to 2 organizations: University At Buffalo Pediatric Associates Inc (Buffalo, NY) and Kaleida Health (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 Alicia Ryan'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 Alicia Ryan was last updated on February 17, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.