Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MRS. ELIZABETH SILL FNP-C
NPI 1790166486
Nurse Practitioner - Family in Nichols Hills, OK

Q: What is Elizabeth Sill's NPI number?

The NPI number for Elizabeth Sill is 1790166486. It was assigned to this individual provider in the NPPES registry on June 18, 2015. The provider is also known as Ms. Elizabeth Tullius Aprn.

Q: What is Elizabeth Sill's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Q: When was this NPI record last updated?

The NPPES record for Elizabeth Sill was last updated on October 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 days 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 June 18, 2015

7305 LANCET CT, NICHOLS HILLS, OK 73120(405) 308-9712 Get Directions Write a Review

NPPES record last updated: October 20, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Mar 8, 2023, Jan 18, 2023, Dec 16, 2015 (3 updates tracked since 2015).

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About Mrs. Elizabeth Sill Fnp-c NPPES

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

MRS. ELIZABETH SILL FNP-C (NPI 1790166486) is an individual family provider in Nichols Hills, Oklahoma, licensed in Oklahoma (129049) and active in the NPI registry since June 2015.

NPPES Registry Identity

NPI1790166486

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameMRS. ELIZABETH SILLCredential: FNP-C

Location Address7305 LANCET CTNichols Hills, OK 73120-1430

Mailing Address7305 Lancet CtNichols Hills, OK 73120-1430 · (405) 308-9712

Phone(405) 308-9712

Sole ProprietorNo

Enumeration DateJune 18, 2015

Last NPPES UpdateOctober 20, 20263 updates tracked since enumeration

NPPES CertifiedOctober 20, 2026

✔ NPI 1790166486 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in OK · 129049

7305 LANCET CT, Nichols Hills, OK 73120

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Other Names 1

Former Name (1)Ms. Elizabeth Tullius Aprn

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Insurance Company.Insurance ›

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 Elizabeth Sill's NPI number?

The NPI number for Elizabeth Sill is 1790166486. It was assigned to this individual provider in the NPPES registry on June 18, 2015. The provider is also known as Ms. Elizabeth Tullius Aprn.

Where is Elizabeth Sill located?

Elizabeth Sill practices at 7305 Lancet Ct, Nichols Hills, OK 73120. The listed phone number is (405) 308-9712.

What is Elizabeth Sill's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

What insurance does Elizabeth Sill accept?

Health plans from Oscar Insurance Company list Elizabeth Sill as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Elizabeth Sill was last updated on October 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 days 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.