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

Susan Davies, M.D.

Reproductive Endocrinology Physician in Glenview, IL · enumerated 2006.

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

National Provider Identifier

1225128200

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Susan Davies

Credential M.D.

Sex Female

Practice address Glenview, IL, 60026

Phone (847) 972-0300

Fax (847) 972-0043

Enumeration date Oct 13, 2006

Last updated in NPPES Dec 15, 2020

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

Taxonomy & licenses

207VE0102X Reproductive Endocrinology Physician Allopathic & Osteopathic Physicians · License 036-048439 (IL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
036-086409	Other	IL	STATE LICENSE

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

What specialty is Susan Davies?

Susan Davies is registered in NPPES with the primary taxonomy of Reproductive Endocrinology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-15.