Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jeffrey T Baker, MD

Internal Medicine Physician in Mason, OH · enumerated 2006.

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

National Provider Identifier

1932163771

Verified

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Registry record

Entity type Individual (Type 1)

Name Jeffrey T Baker

Credential MD

Sex Male

Practice address 9313 Mason Montgomery Road, Suite 200, Mason, OH, 45040

Phone (513) 584-6999

Fax (513) 584-6998

Enumeration date Apr 17, 2006

Last updated in NPPES Jan 9, 2018

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 35047789B (OH) 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
0555519	Medicaid	OH	-

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

Where does Jeffrey Baker practice?

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

What is the NPI number for Jeffrey Baker?

The National Provider Identifier (NPI) for Jeffrey Baker is 1932163771, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-01-09.