Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Marcus S Deranian, M.D.

Ophthalmology Physician in Decatur, IL · enumerated 2006.

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

National Provider Identifier

1952367351

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Registry record

Entity type Individual (Type 1)

Name Dr. Marcus S Deranian

Credential M.D.

Sex Male

Practice address 2442 N Route 121, Decatur, IL, 62526

Phone (217) 233-3101

Fax (217) 233-3107

Enumeration date Apr 25, 2006

Last updated in NPPES Nov 20, 2009

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 036069820 (IL) Secondary

152WC0802X Corneal and Contact Management Optometrist Eye and Vision Services Providers · License 036069820 (IL) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 036-069820 (IL) 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
036069820	Medicaid	IL	-
180033361	Other	IL	RAILROAD MEDICARE
374073	Other	IL	HEALTHLINK
49175	Other	IL	PERSONAL CARE

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.

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Frequently asked questions

Where does Marcus Deranian practice?

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

What is the NPI number for Marcus Deranian?

The National Provider Identifier (NPI) for Marcus Deranian is 1952367351, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Center for Sight of Central Illinois Sc Ophthalmology Physician · Decatur, IL NPI 1093854820 Mid-State Eye Partners Inc Optometrist · Decatur, IL NPI 1023630787

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-11-20.