Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. John H Seok, M.D.
Neurology Physician in Vienna, VA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1770578973
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Registry record
Entity type Individual (Type 1)
Name Dr. John H Seok
Credential M.D.
Sex Male
Practice address 2106 Gallows Rd Ste F, Vienna, VA, 22182
Phone (038) 283-3737
Fax (703) 828-0227
Enumeration date Sep 14, 2005
Last updated in NPPES Aug 15, 2023
Taxonomy & licenses
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 0101233012 (VA) Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License MD60251550 (WA) 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.
Frequently asked questions
Is NPI 1770578973 active?
Yes, as of the latest NPPES snapshot, NPI 1770578973 is active (record last updated 2023-08-15).
How do I verify John Seok's NPI record?
Cross-check NPI 1770578973 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-15.