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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Mark Steven Dresner, M.D.

Ophthalmology Physician in Viera, FL · enumerated 2005.

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

National Provider Identifier

1861491276

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Registry record

Entity type Individual (Type 1)
Name Dr. Mark Steven Dresner
Credential M.D.
Sex Male
Practice address Viera, FL, 32940
Phone (321) 253-1919
Enumeration date Jul 18, 2005
Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License ME55925 (FL) 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.

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Frequently asked questions

What is the NPI number for Mark Dresner?
The National Provider Identifier (NPI) for Mark Dresner is 1861491276, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Dresner practice?
The practice location on file with NPPES is in Viera, FL. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.