MRS. CHELSEA MARIE MASTERS FNP-C
NPI 1639544737
Nurse Practitioner - Family in Saint Louis, MO

Q: What is Chelsea Masters's NPI number?

The NPI number for Chelsea Masters is 1639544737. It was assigned to this individual provider in the NPPES registry on December 1, 2015.

Q: What is Chelsea Masters'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 Chelsea Masters was last updated on December 1, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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 December 01, 2015PECOS Enrolled

4400 CLAYTON AVE, SAINT LOUIS, MO 63110(314) 432-3600 Get Directions Write a Review

NPPES record last updated: December 1, 2015. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Mrs. Chelsea Marie Masters Fnp-c NPPES

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

MRS. CHELSEA MARIE MASTERS FNP-C (NPI 1639544737) is an individual family provider in Saint Louis, Missouri, licensed in Missouri (2015013120) and active in the NPI registry since December 2015. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1639544737

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameMRS. CHELSEA MARIE MASTERSCredential: FNP-C

Location Address4400 CLAYTON AVESaint Louis, MO 63110-1624

Mailing Address1706 Summergate Estates DrSaint Peters, MO 63303-6348 · (636) 443-3121

Phone(314) 432-3600

Sole ProprietorNo

Enumeration DateDecember 1, 2015

✔ NPI 1639544737 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 MO · 2015013120

4400 CLAYTON AVE, Saint Louis, MO 63110

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Chelsea Marie Masters Fnp-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63110 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$86.32 typical visit price

range $55.65 – $169.38

Typical copayment $21.58 (range $13.91 – $42.34)

Most-billed visit code 99203

Established Patient

$98.37 typical visit price

range $17.76 – $137.92

Typical copayment $24.59 (range $4.44 – $34.48)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 7

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

AMANDA O'CONNOR CPNP-PC

Nurse Practitioner (Pediatrics)