Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Regana Contini Sisson, M.D.

Psychiatry Physician in Augusta, ME · enumerated 2009 · practices at State of Maine.

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

National Provider Identifier

1003042185

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Registry record

Entity type Individual (Type 1)

Name Ms. Regana Contini Sisson

Credential M.D.

Sex Female

Practice address 250 Arsenal St, Augusta, ME, 04333

Phone (207) 624-3981

Fax (207) 287-7354

Enumeration date Jun 3, 2009

Last updated in NPPES Jan 28, 2016

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License MD20522 (ME) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Regana Sisson?

Regana Sisson is registered in NPPES with the primary taxonomy of Psychiatry Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-01-28.