Juan Fernandez, M.D.
Juan Fernandez, M.D. is a Neuro-ophthalmology Physician in Joint Base Lewis Mcchord, WA, registered under NPI 1629502760. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 9040A JACKSON AVE, Joint Base Lewis Mcchord, WA 98431. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| A185789 | CA | Neuro-ophthalmology Physician primary |
| A185789 | CA | Neurology Physician |
This provider holds licence A185789 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Neuro-ophthalmology covers
A neuro-ophthalmologist is a subspecialist of ophthalmology. This physician evaluates, treats, and studies disorders of the eye, orbit and nervous system having to do with interactions of the visual motor and visual sensory systems with the central nervous system. Neuro-ophthalmologists manage patients with complex and severe neuro-ophthalmological disorders. NUCC Health Care Provider Taxonomy, code 207WX0109X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207WX0109X | Neuro-ophthalmology Physician Neuro-ophthalmology | A185789 | CA | primary |
| 2084N0400X | Neurology Physician Neurology | A185789 | CA |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1629502760 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 15, 2017 |
| Last updated | Jul 31, 2024 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | M.D. |
| Practice address |
9040A JACKSON AVE Joint Base Lewis Mcchord, WA 98431 (952) 270-0066 |
| Mailing address |
9040A JACKSON AVE NEUROLOGY CLINIC Joint Base Lewis Mcchord, WA 98431 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 6 | 2 | 9 | 5 | 0 | 2 | 7 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 6 | 4 | 9 | 1 | 0 | 4 | 7 | 3 |
Sum = 60 · next multiple of 10 = 60 · check digit = 0 · actual last digit = 0
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.