Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John Joseph Corrales-Diaz, MD
Pediatrics Physician in Poulsbo, WA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1013967512
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Registry record
Entity type Individual (Type 1)
Name John Joseph Corrales-Diaz
Credential MD
Sex Male
Practice address 19245 7th Ave Ne, Poulsbo, WA, 98370
Phone (360) 782-3500
Fax (360) 782-3540
Enumeration date May 12, 2006
Last updated in NPPES Mar 6, 2023
Taxonomy & licenses
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License MD00021573 (WA) Primary
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 |
|---|---|---|---|
| CO7915 | Other | - | REGENCE BLUE SHIELD |
| 4586742 | Other | - | AETNA |
| 1000428 | 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
What specialty is John Corrales-Diaz?
John Corrales-Diaz is registered in NPPES with the primary taxonomy of Pediatrics Physician. 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 → Karl Hadley Family Medicine Physician · Poulsbo, WA NPI 1831140185 George Kina Family Medicine Physician · Poulsbo, WA NPI 1619924230 Peter Lehmann Family Medicine Physician · Poulsbo, WA NPI 1407899362 Lynn Sudduth Dermatology Physician · Poulsbo, WA NPI 1942245824 Stephen Reichley Family Medicine Physician · Poulsbo, WA NPI 1942236880 Patrick Tracy Family Medicine Physician · Poulsbo, WA NPI 1073541587 Kerry Murray Massage Therapist · Poulsbo, WA NPI 1063529329 Jesse Fenger Physician Assistant · Poulsbo, WA NPI 1083798532
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-06.