NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mark David Balter Od, Ps

Optometrist in Seattle, WA · enumerated 2006 · authorized official Mark Balter, Doctor, Owner.

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

National Provider Identifier

1407935513

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Mark David Balter Od, Ps
Other name <Unavail>
Practice address 2201 Nw Market St, Seattle, WA, 98107
Phone (206) 789-7417
Fax (206) 789-7651
Enumeration date Nov 2, 2006
Last updated in NPPES Jan 30, 2008

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers · License 1411 TX (WA) Primary
152WC0802X Corneal and Contact Management Optometrist Eye and Vision Services Providers · License 1411 TX (WA) Secondary

Authorized official

Name Mark Balter
Title Doctor, Owner
Phone (206) 789-7417

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

Who is the authorized official for Mark David Balter Od, Ps?
NPPES lists Mark Balter (Doctor, Owner) as the authorized official for this organization.
What is the NPI number for Mark David Balter Od, Ps?
The NPI for Mark David Balter Od, Ps is 1407935513, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-30.