NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark H Cohn, O.D.

Optometrist in Bellevue, WA · enumerated 2005 · practices at Mark H Cohn, Od, Ps.

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

National Provider Identifier

1407856735

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Mark H Cohn
Credential O.D.
Sex Male
Practice address 15650 Ne 24th St, Suite B, Bellevue, WA, 98008
Phone (425) 746-9914
Fax (425) 746-9916
Enumeration date Jul 28, 2005
Last updated in NPPES Jan 14, 2010

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License OD00001034 (WA) Primary
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier Type State Issuer
2013423 Medicaid WA -

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 Mark Cohn practice?
The practice location on file with NPPES is in Bellevue, WA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mark Cohn?
The National Provider Identifier (NPI) for Mark Cohn is 1407856735, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-01-14.