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

Andrew Montelius, LSW

Social Worker in Flemington, NJ · enumerated 2007.

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

National Provider Identifier

1801927603

Verified

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Registry record

Entity type Individual (Type 1)

Name Andrew Montelius

Credential LSW

Sex Male

Practice address Flemington, NJ, 08822

Phone (908) 788-6401

Fax (908) 788-6584

Enumeration date Mar 7, 2007

Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 44SL05273300 (NJ) Primary

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.

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Frequently asked questions

Where does Andrew Montelius practice?

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

What is the NPI number for Andrew Montelius?

The National Provider Identifier (NPI) for Andrew Montelius is 1801927603, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Kathleen Schupner Emergency Medical Services (Emergency Medicine) Physician · Flemington, NJ NPI 1982609616 Maureen Basius Anatomic Pathology & Clinical Pathology Physician · Flemington, NJ NPI 1033110002 Hunterdon Medical Center General Acute Care Hospital · Flemington, NJ NPI 1922095116 Myron Bednar Hematology & Oncology Physician · Flemington, NJ NPI 1235127622 Kenneth Blankstein Hematology & Oncology Physician · Flemington, NJ NPI 1184612566 Hunterdon Hematology Oncology, LLC Hematology & Oncology Physician · Flemington, NJ NPI 1154319531 Brian Quinn Hematology & Oncology Physician · Flemington, NJ NPI 1811986664 Hunterdon Imaging, P.A. Radiology Clinic/Center · Flemington, NJ NPI 1750356135

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.