Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Katelyn Day

Q: What is the NPI number for Katelyn Day?

The National Provider Identifier (NPI) for Katelyn Day is 1558109066, a Type 1 (individual) record in the CMS NPPES registry.

Advanced Practice Midwife in Mc Lean, VA · enumerated 2024 · practices at Grace Reproductive Health Services.

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

National Provider Identifier

1558109066

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Registry record

Entity type Individual (Type 1)

Name Katelyn Day

Sex Female

Practice address 1749 Old Meadow Rd Ste 600, Mc Lean, VA, 22102

Phone (703) 783-3300

Enumeration date Jul 18, 2024

Last updated in NPPES Jul 18, 2024

Taxonomy & licenses

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License 0024190777 (VA) 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.

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Frequently asked questions

What is the NPI number for Katelyn Day?

The National Provider Identifier (NPI) for Katelyn Day is 1558109066, a Type 1 (individual) record in the CMS NPPES registry.

Where does Katelyn Day practice?

The practice location on file with NPPES is in Mc Lean, VA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Elena Ifarraguerri Family Nurse Practitioner · Mc Lean, VA NPI 1083489785 Grace Reproductive Health Services Gynecology Physician · Mc Lean, VA NPI 1750148946

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-18.