Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Leglagen Hall, DDS

Q: What is the NPI number for John Hall?

The National Provider Identifier (NPI) for John Hall is 1720187750, a Type 1 (individual) record in the CMS NPPES registry.

General Practice Dentistry in Adrian, MI · enumerated 2006.

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

National Provider Identifier

1720187750

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Registry record

Entity type Individual (Type 1)

Name John Leglagen Hall

Credential DDS

Sex Male

Practice address 3359 Hartley Drive, Adrian, MI, 49221

Phone (517) 862-1590

Enumeration date Sep 22, 2006

Last updated in NPPES Jan 7, 2019

Taxonomy & licenses

1223D0001X Public Health Dentistry Dental Providers · License 2901016896 (MI) Secondary

1223G0001X General Practice Dentistry Dental Providers · License 019.023197 (IL) Secondary

1223G0001X General Practice Dentistry Dental Providers · License 12011912A (IN) Secondary

1223G0001X General Practice Dentistry Dental Providers · License 30.020619 (OH) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Other identifiers

Identifier	Type	State	Issuer
201134060	Medicaid	IN	-
0317521	Medicaid	OH	-
420322612	Medicaid	MI	-

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 John Hall?

The National Provider Identifier (NPI) for John Hall is 1720187750, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Hall practice?

The practice location on file with NPPES is in Adrian, MI. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-01-07.