Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Stephen Chadwick Simpson, O.D.
Optometrist in Apo, AP · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1629056726
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Registry record
Entity type Individual (Type 1)
Name Dr. Stephen Chadwick Simpson
Credential O.D.
Sex Male
Practice address 51st Medical Group, Bldg 777 Unit 2060, Apo, AP, 96278
Phone (000) 784-2151
Enumeration date Jan 9, 2006
Last updated in NPPES Nov 18, 2021
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD 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 is the NPI number for Stephen Simpson?
The National Provider Identifier (NPI) for Stephen Simpson is 1629056726, a Type 1 (individual) record in the CMS NPPES registry.
Where does Stephen Simpson practice?
The practice location on file with NPPES is in Apo, AP. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Carrie Gregory Emergency Medicine Physician · Apo, AP NPI 1225028368 Thomas Edmonson General Practice Dentistry · Apo, AP NPI 1467423103 Eunyoung Ra Clinical Social Worker · Apo, AP NPI 1851343891 Bruce Callahan Physician Assistant · Apo, AP NPI 1598806762 Tracy Golliday-Corley Clinical Social Worker · Apo, AP NPI 1154545762 Changeun Song Dentist · Apo, AP NPI 1215183371 Anthony Gale Psychiatry Physician · Apo, AP NPI 1639406374 Shauna-Leigh Baxa Pharmacist · Apo, AP NPI 1487900916
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-18.