Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Peter Mark Johnson
Physician Assistant in Seattle, WA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1609956671
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Registry record
Entity type Individual (Type 1)
Name Peter Mark Johnson
Sex Male
Practice address Ambulatory Clinic, 825 Eastlake Avenue East, Seattle, WA, 98109
Phone (206) 288-1000
Enumeration date Oct 16, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA10004168 (WA) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 2000195 | Other | - | INTERNAL ID-MOTOR VEHICLE ID |
| 8329922 | 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 Peter Johnson?
Peter Johnson is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Kevin Coleman Physician Assistant · Seattle, WA NPI 1396825352 Keith Eaton Medical Oncology Physician · Seattle, WA NPI 1982784955 Marco Mielcarek Medical Oncology Physician · Seattle, WA NPI 1154401123 Jennifer Specht Medical Oncology Physician · Seattle, WA NPI 1053491027 Keith Jerome Clinical Pathology/Laboratory Medicine Physician · Seattle, WA NPI 1386724367 Claire Works Nurse Practitioner · Seattle, WA NPI 1780764753 Uma Malhotra Infectious Disease Physician · Seattle, WA NPI 1194805184 Adam Geballe Infectious Disease Physician · Seattle, WA NPI 1689754673
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.