Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Tina Krupczak, MS, CNS, LDN
Nutritionist in Herndon, VA · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1770020653
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Registry record
Entity type Individual (Type 1)
Name Tina Krupczak
Credential MS, CNS, LDN
Sex Female
Practice address 2343 Dulles Station Blvd Apt 130, Herndon, VA, 20171
Phone (703) 349-2868
Enumeration date Jan 30, 2017
Last updated in NPPES Jan 30, 2017
Taxonomy & licenses
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 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.
What specialty is Tina Krupczak?
Tina Krupczak is registered in NPPES with the primary taxonomy of Nutritionist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-30.