Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ingrid C Iwanow, M.D.

Otolaryngology Physician in Winchester, VA · enumerated 2006 · practices at Winchester Medical Center.

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

National Provider Identifier

1689769416

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Registry record

Entity type Individual (Type 1)

Name Dr. Ingrid C Iwanow

Credential M.D.

Sex Female

Practice address 1870 Amherst St Ste 2b, Winchester, VA, 22601

Phone (540) 536-2790

Fax (540) 536-2791

Enumeration date Oct 4, 2006

Last updated in NPPES Mar 5, 2021

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 0101231531 (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
P00417900	Other	VA	RR MEDICARE
1689769416	Medicaid	VA	-

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 Ingrid Iwanow?

Ingrid Iwanow is registered in NPPES with the primary taxonomy of Otolaryngology 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 2021-03-05.