Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Allan L Korff, CRNP
Nurse Practitioner in Suitland, MD · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1770643231
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Registry record
Entity type Individual (Type 1)
Name Mr. Allan L Korff
Credential CRNP
Sex Male
Practice address 5100 Auth Way, Suitland, MD, 20746
Phone (301) 702-5000
Enumeration date Dec 12, 2006
Last updated in NPPES Jan 3, 2012
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AC000290 (MD) Primary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0001151805 (VA) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN61669 (DC) Secondary
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
Where does Allan Korff practice?
The practice location on file with NPPES is in Suitland, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Allan Korff?
The National Provider Identifier (NPI) for Allan Korff is 1770643231, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-01-03.