NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dirk Vandersloot, MD

Family Medicine Physician in Rockland, ME · enumerated 2007 · authorized official Dirk Vandersloot, Owner and Provider.

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

National Provider Identifier

1619021987

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Dirk Vandersloot, MD
Practice address 17 Masonic St, Rockland, ME, 04841
Fax (207) 596-0213
Enumeration date Jan 23, 2007
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Dirk Vandersloot
Title Owner and Provider

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

Who is the authorized official for Dirk Vandersloot, MD?
NPPES lists Dirk Vandersloot (Owner and Provider) as the authorized official for this organization.
What is the NPI number for Dirk Vandersloot, MD?
The NPI for Dirk Vandersloot, MD is 1619021987, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.