MS. CAROL V MASSMANN PNP
NPI 1598782013
Nurse Practitioner in Saint Louis, MO

Q: What is Carol Massmann's NPI number?

The NPI number for Carol Massmann is 1598782013. It was assigned to this individual provider in the NPPES registry on July 17, 2006.

Q: What is Carol Massmann's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Q: When was this NPI record last updated?

The NPPES record for Carol Massmann was last updated on May 12, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since July 17, 2006PECOS Enrolled

1 CHILDRENS PL, DIV PED NEWBORN MEDICINE, SAINT LOUIS, MO 63110(314) 454-2683(314) 454-4633 Get Directions Write a Review

NPPES record last updated: May 12, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: May 12, 2026, Nov 5, 2021 (2 updates tracked since 2021).

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About Ms. Carol V Massmann Pnp NPPES

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

MS. CAROL V MASSMANN PNP (NPI 1598782013) is an individual nurse practitioner in Saint Louis, Missouri, licensed in Missouri (113735) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1598782013

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameMS. CAROL V MASSMANNCredential: PNP

Location Address1 CHILDRENS PL, DIV PED NEWBORN MEDICINESaint Louis, MO 63110-1002

Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 454-2683 · Fax (314) 454-4633

Phone(314) 454-2683

Fax(314) 454-4633

Sole ProprietorNo

Enumeration DateJuly 17, 2006

Last NPPES UpdateMay 12, 20262 updates tracked since enumeration

NPPES CertifiedNovember 5, 2021

✔ NPI 1598782013 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in MO · 113735

Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

1 CHILDRENS PL, Saint Louis, MO 63110

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Carol V Massmann Pnp 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.