Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Marissa R Omalia, DC

Chiropractor in Washington, DC · enumerated 2006.

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

National Provider Identifier

1477650281

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Registry record

Entity type Individual (Type 1)

Name Dr. Marissa R Omalia

Credential DC

Sex Female

Practice address 2440 M Street Nw, Suite 807, Washington, DC, 20037

Phone (202) 887-5375

Fax (202) 887-1833

Enumeration date Sep 20, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 21161 (DC) Primary

111N00000X Chiropractor Chiropractic Providers Secondary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier	Type	State	Issuer
2141130	Other	DC	MAMSI

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 Marissa Omalia?

Marissa Omalia is registered in NPPES with the primary taxonomy of Chiropractor. 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 2007-07-08.