John Myunghoon Pyun, MD
John Myunghoon Pyun is a Ophthalmology Physician provider (Ophthalmology) practicing in Pinole, CA, registered in the NPPES registry with NPI 1851822639 since 2017. The credential MD stands for Doctor of Medicine. Practices at East Bay Ophthalmology (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1851822639 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | John Myunghoon Pyun |
| Credential | MD |
| Sex | Male |
| Practice address | 1289 PINOLE VALLEY RD, Pinole, CA, 94564 |
| Phone | 5107241768 |
| Enumeration date | 2017-03-23 |
| Last updated in NPPES | 2021-08-13 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 390200000X | Student in an Organized Health Care Education/Training Program | Secondary | — | — |
| 207W00000X | Ophthalmology Physician | Primary | A160887 | CA |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Copy-ready billing details
Provider: John Pyun, MD NPI: 1851822639 Taxonomy: 207W00000X (Ophthalmology Physician) Address: 1289 PINOLE VALLEY RD, Pinole, CA, 94564
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1871783308 | East Bay Ophthalmology | Organization | Ophthalmology Physician | Pinole, CA |
Verify this record
Cross-check NPI 1851822639 against the authoritative CMS record: view John Myunghoon Pyun 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
Where does John Pyun practice?
What is the NPI number for John Pyun?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2021-08-13.