GILLIAN TAYLOR COOK
NPI 1720915325
Anesthesiologist Assistant in Cleveland, OH

Q: What is Gillian Cook's NPI number?

The NPI number for Gillian Cook is 1720915325. It was assigned to this individual provider in the NPPES registry on May 6, 2026.

Q: What is Gillian Cook's specialty?

The primary specialty registered for this NPI is Anesthesiologist Assistant with taxonomy code 367H00000X.

Q: When was this NPI record last updated?

The NPPES record for Gillian Cook was last updated on May 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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 May 06, 2026

11100 EUCLID AVE, CLEVELAND, OH 44106(330) 400-8591 Get Directions Write a Review

NPPES record last updated: May 18, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 18, 2026, May 6, 2026 (2 updates tracked since 2026).

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About Gillian Taylor Cook NPPES

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

GILLIAN TAYLOR COOK (NPI 1720915325) is an individual anesthesiologist assistant in Cleveland, Ohio and active in the NPI registry since May 2026. She is a graduate of Other (2026).

NPPES Registry Identity

NPI1720915325

Entity TypeIndividualFemale

Primary Taxonomy367H00000X

Provider Legal NameGILLIAN TAYLOR COOK

Location Address11100 EUCLID AVECleveland, OH 44106-1716

Mailing Address11100 Euclid AveCleveland, OH 44106-1716

Phone(330) 400-8591

Sole ProprietorYes

Medical School CMSOtherGraduated 2026

Enumeration DateMay 6, 2026

Last NPPES UpdateMay 18, 20262 updates tracked since enumeration

NPPES CertifiedMay 18, 2026

✔ NPI 1720915325 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologist AssistantPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code367H00000X

Definition

An individual certified by the state to perform anesthesia services under the direct supervision of an anesthesiologist. Anesthesiologist Assistants are required to have a bachelor's degree with a premed curriculum prior to entering a two-year anesthesiology assistant program, which is focused upon the delivery and maintenance of anesthesia care as well as advanced patient monitoring techniques. An Anesthesiologist Assistant must work as a member of the anesthesia care team under the direction of a qualified Anesthesiologist.

11100 EUCLID AVE, Cleveland, OH 44106

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gillian Taylor Cook is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2567922230

PECOS Enrollment IDI20260901004180

Medicare Billing Reassignments

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

University Hospitals Medical Group Inc

Same address

Multi-Specialty

11100 EUCLID AVE
Cleveland, OH 44106

Reassigned Medicare billing, Ohio enrollment
3,958 clinicians in this Medicare group

NPI 1669499414 (216) 844-1000

University Primary Care Practices Inc

Same address

Diagnostic Radiology

11100 EUCLID AVE
Cleveland, OH 44106

Reassigned Medicare billing, Ohio enrollment
1,437 clinicians in this Medicare group

NPI 1255500971 (216) 844-3601

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 20

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

DR. YU HYON KIM MD

Ophthalmology

11100 EUCLID AVE
CLEVELAND, OH 44106

Cuyahoga County (216) 844-3601

JENNIFER LYNN PARRY RN, CPNP

Nurse Practitioner (Pediatrics)

11100 EUCLID AVE
CLEVELAND, OH 44106

Cuyahoga County (216) 983-5691

RAINBOW BABIES & CHILDREN'S HOSPITAL

General Acute Care Hospital (Children)

11100 EUCLID AVE, RBC 637
CLEVELAND, OH 44106

Cuyahoga County (216) 983-5261

DR. KA CHUN ALAN CHAN M.D

Student in an Organized Health Care Education/Training Program

11100 EUCLID AVE, UNIVERSITY HOSPITALS CASE MEDICAL CENTER
CLEVELAND, OH 44106

Cuyahoga County (216) 844-1000

DR. CHOR CHEUNG TAM M.D.

Student in an Organized Health Care Education/Training Program

11100 EUCLID AVE, UNIVERSITY HOSPITALS CASE MEDICAL CENTER
CLEVELAND, OH 44106

Cuyahoga County (216) 333-8948

DOMINIC CERCONE

Student in an Organized Health Care Education/Training Program

11100 EUCLID AVE
CLEVELAND, OH 44106

Cuyahoga County (216) 844-1000

DR. CHRISTOPHER FELCHLIA MD

Anesthesiology

11100 EUCLID AVE
CLEVELAND, OH 44106

Cuyahoga County (216) 844-2273

GABRIELLA MARGUERITE RUSTIA MD

Student in an Organized Health Care Education/Training Program

11100 EUCLID AVE
CLEVELAND, OH 44106

Cuyahoga County (216) 844-8570

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 Gillian Cook's NPI number?

The NPI number for Gillian Cook is 1720915325. It was assigned to this individual provider in the NPPES registry on May 6, 2026.

Where is Gillian Cook located?

Gillian Cook practices at 11100 Euclid Ave, Cleveland, OH 44106. The listed phone number is (330) 400-8591.

What is Gillian Cook's specialty?

The primary specialty registered for this NPI is Anesthesiologist Assistant with taxonomy code 367H00000X.

Is Gillian Cook enrolled in Medicare?

Yes. Gillian Cook is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Gillian Cook's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gillian Cook reassigns Medicare benefits to 2 organizations: University Hospitals Medical Group Inc (Cleveland, OH) and University Primary Care Practices Inc (Cleveland, OH). 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 Gillian Cook'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 Gillian Cook was last updated on May 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.