Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark C Cullen, MD

Q: What is the NPI number for Mark Cullen?

The National Provider Identifier (NPI) for Mark Cullen is 1497722219, a Type 1 (individual) record in the CMS NPPES registry.

Sports Medicine (Orthopaedic Surgery) Physician in Portsmouth, NH · enumerated 2006.

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

National Provider Identifier

1497722219

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Registry record

Entity type Individual (Type 1)

Name Mark C Cullen

Credential MD

Sex Male

Practice address 67 Corporate Dr, 2nd Fl, Portsmouth, NH, 03801

Phone (603) 810-8078

Enumeration date Mar 1, 2006

Last updated in NPPES Jan 27, 2020

Taxonomy & licenses

207XX0005X Sports Medicine (Orthopaedic Surgery) Physician Allopathic & Osteopathic Physicians · License 19638 (NH) 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
3117862	Medicaid	NH	-

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 Mark Cullen practice?

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

What is the NPI number for Mark Cullen?

The National Provider Identifier (NPI) for Mark Cullen is 1497722219, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-27.