Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Phyllis Harrison

Case Manager/Care Coordinator in Cleveland, OH · enumerated 2018 · practices at Gagan C Mallik MD Inc.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1083106611

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Phyllis Harrison

Sex Female

Practice address Cleveland, OH, 44127

Phone (216) 938-6829

Fax (216) 441-3637

Enumeration date May 30, 2018

Last updated in NPPES May 30, 2018

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

171M00000X Case Manager/Care Coordinator Other Service Providers Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Phyllis Harrison?

Phyllis Harrison is registered in NPPES with the primary taxonomy of Case Manager/Care Coordinator. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-30.