NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Daniel Leon Maison, MD

Internal Medicine Physician in Columbia, MD · enumerated 2005.

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

National Provider Identifier

1700876018

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Daniel Leon Maison
Credential MD
Sex Male
Practice address 5457 Twin Knolls Rd Ste 100, Columbia, MD, 21045
Enumeration date Oct 27, 2005
Last updated in NPPES Dec 11, 2024

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License V0037 (TX) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License ME84214 (FL) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 4301097415 (MI) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A62106 (CA) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License D84710 (MD) Primary
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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Daniel Maison?
The National Provider Identifier (NPI) for Daniel Maison is 1700876018, a Type 1 (individual) record in the CMS NPPES registry.
Where does Daniel Maison practice?
The practice location on file with NPPES is in Columbia, MD. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-11.