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

Mrs. Colleen Marie Prorok, RN, MSN, IBCLC

Lactation Consultant (Registered Nurse) in Brookeville, MD · enumerated 2008.

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

National Provider Identifier

1548405483

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Registry record

Entity type Individual (Type 1)

Name Mrs. Colleen Marie Prorok

Credential RN, MSN, IBCLC

Sex Female

Practice address Brookeville, MD, 20833

Phone (301) 774-7279

Fax (301) 774-7279

Enumeration date Dec 5, 2008

Last updated in NPPES Dec 5, 2008

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

Taxonomy & licenses

163WL0100X Lactation Consultant (Registered Nurse) Nursing Service Providers · License R052436 (MD) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

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

Where does Colleen Prorok practice?

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

What is the NPI number for Colleen Prorok?

The National Provider Identifier (NPI) for Colleen Prorok is 1548405483, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-12-05.