Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael J Markus, MD

Internal Medicine Physician in Fairfield Township, OH · enumerated 2006.

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

National Provider Identifier

1740246297

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Registry record

Entity type Individual (Type 1)

Name Michael J Markus

Credential MD

Sex Male

Practice address 3145 Hamilton Mason Rd Ste 300, Fairfield Township, OH, 45011

Phone (513) 936-2120

Fax (513) 936-2121

Enumeration date Apr 25, 2006

Last updated in NPPES Feb 14, 2018

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 35051636 (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
0660922	Medicaid	OH	-
P00850224	Other	OH	MEDICARE RR

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 Michael Markus practice?

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

What is the NPI number for Michael Markus?

The National Provider Identifier (NPI) for Michael Markus is 1740246297, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Ammara Afzal Family Medicine Physician · Fairfield Township, OH NPI 1114548088

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-02-14.