Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Alissa Won, M.D.

Pediatrics Physician in Arnold, MD · enumerated 2005 · practices at Arundel Pediatrics, PA.

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

National Provider Identifier

1023000866

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Registry record

Entity type Individual (Type 1)

Name Dr. Alissa Won

Credential M.D.

Sex Female

Practice address 1460 Ritchie Hwy Ste 209, Arnold, MD, 21012

Phone (410) 789-7337

Fax (410) 789-0425

Enumeration date Aug 18, 2005

Last updated in NPPES Oct 12, 2022

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License D0062438 (MD) 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
7256396	Other	MD	AETNA FEE FOR SERVICE
4224238	Other	MD	CIGNA PIN
64356802	Other	MD	BCBS
3769080	Other	MD	AETNA CAPITATED
38940011	Other	DC	BCBS
406584100	Medicaid	MD	-
7605-0068	Other	MD	CAREFIRST BLUECHOICE
64356803	Other	MD	BCBS
8565391	Other	MD	AETNA HMO
8130796	Other	MD	MAMSI PRIMARY CARE
P16585	Other	MD	CAREFIRST MPOS
108885	Other	MD	JHHC PROVIDER NUMBER
2130796	Other	MD	MAMSI SPECIALTY
643568-01	Other	MD	CAREFIRST MD RENDERING
P20252	Other	MD	BCBS

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

What specialty is Alissa Won?

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

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.

Other providers at this practice address

Browse all →

Rebecca Vickers Pediatrics Physician · Arnold, MD NPI 1588643589 Arundel Pediatrics, PA Pediatrics Physician · Arnold, MD NPI 1265400113 Meghann Wellard Pediatric Nurse Practitioner · Arnold, MD NPI 1184736712 Sheanita Howard Pediatric Adolescent Medicine Physician · Arnold, MD NPI 1659699254 Shelley Revesz Pediatrics Physician · Arnold, MD NPI 1083175541

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-12.