Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Theodore D Hegg, M.D.

Specialist in Mount Vernon, WA · enumerated 2006.

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

National Provider Identifier

1255373767

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Theodore D Hegg

Credential M.D.

Sex Male

Practice address 307 S 13th St Ste 300, Mount Vernon, WA, 98274

Phone (360) 336-9757

Fax (360) 336-2088

Enumeration date Jun 11, 2006

Last updated in NPPES Aug 3, 2009

Taxonomy & licenses

174400000X Specialist Other Service Providers · License MD00014826 (WA) 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
8397804	Medicaid	WA	-

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

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 Theodore Hegg?

Theodore Hegg is registered in NPPES with the primary taxonomy of Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-08-03.