Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Gillian G Esser, M.D.
Specialist in Gig Harbor, WA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1598768491
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Registry record
Entity type Individual (Type 1)
Name Dr. Gillian G Esser
Credential M.D.
Sex Female
Practice address 5727 Baker Way Nw Ste 204, Gig Harbor, WA, 98332
Phone (360) 337-7369
Fax (360) 337-1158
Enumeration date May 24, 2005
Last updated in NPPES Aug 27, 2024
Taxonomy & licenses
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 |
|---|---|---|---|
| 1108331 | 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.
Frequently asked questions
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.
What specialty is Gillian Esser?
Gillian Esser 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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-27.