Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Eric H Nakanishi, MD

Anesthesiology Physician in Williamsburg, VA · enumerated 2006.

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

National Provider Identifier

1639193667

Verified

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Registry record

Entity type Individual (Type 1)

Name Eric H Nakanishi

Credential MD

Sex Male

Practice address 1500 Commonwealth Ave, Williamsburg, VA, 23185

Phone (757) 585-2000

Enumeration date Jul 26, 2006

Last updated in NPPES Apr 13, 2026

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 35-063426 (OH) Secondary

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 0101241745 (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
0882120	Medicaid	OH	-
P00383077	Other	OH	MEDICARE RAILROAD
0988436	Medicaid	OH	-
000000209122	Other	OH	UNISON
000000503572	Other	OH	ANTHEM
4616193	Other	OH	AETNA
000000516052	Other	OH	ANTHEM
221147	Other	OH	UNISON
P00364277	Other	OH	RAILROAD MEDICARE

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

Is NPI 1639193667 active?

Yes, as of the latest NPPES snapshot, NPI 1639193667 is active (record last updated 2026-04-13).

How do I verify Eric Nakanishi's NPI record?

Cross-check NPI 1639193667 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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