Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Isabel J Ramaswamy, M.D.

Ph.D. Medical Genetics in Arlington, VA · enumerated 2006.

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

National Provider Identifier

1780695627

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Registry record

Entity type Individual (Type 1)

Name Mrs. Isabel J Ramaswamy

Credential M.D.

Sex Female

Practice address 3801 Fairfax Dr, Suite 44, Arlington, VA, 22203

Phone (703) 522-4780

Fax (703) 527-8695

Enumeration date Aug 10, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

170100000X Ph.D. Medical Genetics Other Service Providers · License 0101021867 (VA) 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
8117670	Other	VA	MDIPA
2117670	Other	VA	MAMSI
C0170001	Other	VA	BCBS (DC)
010474	Other	VA	ANTHEM
3382953	Other	VA	AETMA HMO
281761	Other	VI	AMERIGROUP
493948	Other	VA	NCPPO
3169508	Other	VI	UNITED HEALTH CARE
4088538	Other	VA	AETNA PPO

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 Isabel Ramaswamy practice?

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

What is the NPI number for Isabel Ramaswamy?

The National Provider Identifier (NPI) for Isabel Ramaswamy is 1780695627, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.