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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Charles Thomas Volk, MD

Surgery Physician in Corpus Christi, TX · enumerated 2006 · practices at Surgical Associates Corpus Christi, LLP.

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

National Provider Identifier

1639140544

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Registry record

Entity type Individual (Type 1)
Name Dr. Charles Thomas Volk
Credential MD
Sex Male
Practice address 6133 Parkway, Corpus Christi, TX, 78414
Phone (361) 881-8333
Fax (361) 884-8302
Enumeration date Jan 30, 2006
Last updated in NPPES Dec 3, 2010

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License F7271 (TX) 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
84211401 Medicaid TX -

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.

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Frequently asked questions

How do I verify Charles Volk's NPI record?
Cross-check NPI 1639140544 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1639140544 active?
Yes, as of the latest NPPES snapshot, NPI 1639140544 is active (record last updated 2010-12-03).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-03.