Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mark S Cichowski, MD
Specialist in Coupeville, WA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1184621146
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Registry record
Entity type Individual (Type 1)
Name Mark S Cichowski
Credential MD
Sex Male
Practice address 109 Ne Birch St, Coupeville, WA, 98239
Phone (360) 678-2020
Fax (360) 678-6228
Enumeration date Jul 6, 2005
Last updated in NPPES Feb 11, 2008
Taxonomy & licenses
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.
Frequently asked questions
What specialty is Mark Cichowski?
Mark Cichowski is registered in NPPES with the primary taxonomy of Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Jeffery Adkins Ophthalmology Physician · Coupeville, WA NPI 1255309696 Mark S Cichowski, MD Optometrist · Coupeville, WA NPI 1770527897 Whidbey Island Public Hospital District Obstetrics & Gynecology Physician · Coupeville, WA NPI 1841431194 Paul Thompson Ophthalmology Physician · Coupeville, WA NPI 1871874693 Whidbey Eye Center Pllc Ophthalmology Physician · Coupeville, WA NPI 1104253715 North Cascade Eye Associates Ps Ophthalmology Physician · Coupeville, WA NPI 1518495282 Whidbey Island Public Hospital District Critical Access Hospital · Coupeville, WA NPI 1497640445
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-11.