NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Craig Hjemdahl-Monsen, MD

Interventional Cardiology Physician in Hawthorne, NY · enumerated 2005.

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

National Provider Identifier

1265435101

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Registry record

Entity type Individual (Type 1)
Name Dr. Craig Hjemdahl-Monsen
Credential MD
Sex Male
Practice address 40 Saw Mill River Rd Ste Ul1, Hawthorne, NY, 10532
Fax (914) 593-7881
Enumeration date May 24, 2005
Last updated in NPPES Apr 15, 2024

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 154816 (NY) Secondary
207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians · License 154816 (NY) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
01042231 Medicaid NY -
060023509 Other NY RAIL ROAD MEDICARE

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

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Craig Hjemdahl-Monsen?
Craig Hjemdahl-Monsen is registered in NPPES with the primary taxonomy of Interventional Cardiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-15.