Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Vivian Afia-Serwaa Asare, M.D.

Sleep Medicine (Internal Medicine) Physician in North Haven, CT · enumerated 2010 · practices at Yale University.

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

National Provider Identifier

1700106002

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Registry record

Entity type Individual (Type 1)

Name Dr. Vivian Afia-Serwaa Asare

Credential M.D.

Sex Female

Practice address North Haven, CT, 06473

Phone (203) 287-3550

Enumeration date Jun 9, 2010

Last updated in NPPES Apr 26, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 244480 (MA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 269488 (NY) Secondary

207RS0012X Sleep Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 55185 (CT) Primary

207RS0012X Sleep Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License MT208015 (PA) Secondary

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

What specialty is Vivian Asare?

Vivian Asare is registered in NPPES with the primary taxonomy of Sleep Medicine (Internal Medicine) 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-04-26.