Dr. Stephen B Prepas, M.D.
Dr. Stephen B Prepas is a Pediatric Ophthalmology and Strabismus Specialist Physician provider (Ophthalmology) practicing in Irvine, CA, registered in the NPPES registry with NPI 1023103660 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1023103660 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Stephen B Prepas |
| Credential | M.D. |
| Sex | Male |
| Practice address | 850 HEALTH SCIENCES RD, Irvine, CA, 92617 |
| Phone | 9498242020 |
| Enumeration date | 2006-10-03 |
| Last updated in NPPES | 2025-01-23 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207W00000X | Ophthalmology Physician | Secondary | G32851 | CA |
| 207WX0110X | Pediatric Ophthalmology and Strabismus Specialist Physician | Primary | G32851 | CA |
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 |
|---|---|---|---|
| GR0044731 | Medicaid | CA | — |
Copy-ready billing details
Provider: Stephen Prepas, M.D. NPI: 1023103660 Taxonomy: 207WX0110X (Pediatric Ophthalmology and Strabismus Specialist Physician) Address: 850 HEALTH SCIENCES RD, Irvine, CA, 92617
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1295727022 | Donny Suh | Individual | Pediatric Ophthalmology and Strabismus Specialist Physician | Irvine, CA |
| 1275589756 | Marjan Farid | Individual | Ophthalmic Plastic and Reconstructive Surgery Physician | Irvine, CA |
| 1285646398 | Robert Crow | Individual | Neuro-ophthalmology Physician | Irvine, CA |
| 1275613432 | Sameh Mosaed | Individual | Glaucoma Specialist (Ophthalmology) Physician | Irvine, CA |
| 1326128455 | Baruch Kuppermann | Individual | Retina Specialist (Ophthalmology) Physician | Irvine, CA |
| 1174604292 | Vivek Patel | Individual | Neuro-ophthalmology Physician | Irvine, CA |
| 1043369838 | Nilima Tanna | Individual | Occupational Therapist | Irvine, CA |
| 1134279995 | Olivia Lee | Individual | Uveitis and Ocular Inflammatory Disease (Ophthalmology) Physician | Irvine, CA |
Verify this record
Cross-check NPI 1023103660 against the authoritative CMS record: view Dr. Stephen B Prepas on the official NPPES registry .
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. Read the full guide or validate an NPI number.
Frequently asked questions
What is the NPI number for Stephen Prepas?
Where does Stephen Prepas practice?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-01-23.