Jack Lemon, MD
Jack Lemon, MD is an Ophthalmology Physician in Arcadia, CA, registered under NPI 1003378019. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in Arcadia, based on OpenStreetMap data collected Sep 22, 2026. Parking is available about 0.29 mi away. The nearest transit stop is 628 ft away, served by Duarte & La Cadena Westbound. A pharmacy sits 0.44 mi from the entrance (986 Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.26 mi away.
Getting here and what is nearby
Transit Duarte & Lovell Eastbound 54 ft ~1 min
Transit Duarte & Lovell Westbound 76 ft ~1 min
Parking 612 Duarte Road Medical Building Parking 286 ft ~2 min
612 Duarte Road, Arcadia 91007
Restaurant Chang's Garden 301 ft ~2 min
627 West Duarte Road, Arcadia 91007
Restaurant May Mei Restaurant 378 ft ~2 min
Grocery Arcadia Supermarket 500 ft ~2 min
08:30-21:30
Restaurant SinBala 595 ft ~3 min
651 West Duarte Road, Arcadia 91007
Mo,We-Su 11:00-21:30
Transit Duarte & La Cadena Westbound 628 ft ~3 min
Parking Duarte Medical Center South Car Parking 655 ft ~3 min
Gas station Mobil 803 ft ~4 min
Coffee Happy Lemon 0.21 mi ~5 min
Coffee CC Cake 0.22 mi ~5 min
Convenience 7-Eleven 0.24 mi ~5 min
1003 South Baldwin Avenue, Arcadia 91007-7235
24/7
Coffee Sun Tea Day 0.26 mi ~6 min
921 South Baldwin Avenue, Alhambra 91007
Mo off; Tu-Th,Su 12:00-18:00; Fr 12:00-19:00; Sa 12:00-19:30
Parking 0.29 mi ~6 min
Pharmacy CVS Pharmacy 0.33 mi ~7 min
Grocery Aldi 0.34 mi ~7 min
1403 South Baldwin Avenue, Arcadia 91007
09:00-21:00
Grocery Vons 0.35 mi ~7 min
745 West Naomi Avenue, Arcadia 91007
06:00-23:00
Convenience Conserv Fuel 0.43 mi ~9 min
Gas station Conserv Fuel 0.43 mi ~9 min
Gas station Conserv Fuel 0.43 mi ~9 min
Pharmacy 986 Pharmacy 0.44 mi ~9 min
846 West Duarte Road, Arcadia 91007
Mo-Fr 09:00-18:00; Sa 09:00-16:00; Su off
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| A187679 | CA | Ophthalmology Physician primary |
| A187679 | CA | Retina Specialist (Ophthalmology)… |
This provider holds licence A187679 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Ophthalmology
- PAC ID
- 6709110216
- Enrollment ID
- I20251218004229
Medicare enrolment is recorded as approved under the provider type Practitioner - Ophthalmology. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Ophthalmology covers
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses. NUCC Health Care Provider Taxonomy, code 207W00000X
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 | |
|---|---|---|---|---|
| 207W00000X | Ophthalmology Physician | A187679 | CA | primary |
| 207WX0107X | Retina Specialist (Ophthalmology) Physician Retina Specialist | A187679 | 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 | 1003378019 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 1, 2019 |
| Last updated | May 14, 2024 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MD |
| Practice address |
622 W DUARTE RD STE 101 Arcadia, CA 91007 (626) 254-9010 |
| Mailing address |
5767 W CENTURY BLVD STE 400 Los Angeles, CA 90045 |
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 | 0 | 0 | 3 | 3 | 7 | 8 | 0 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 7 | 7 | 0 | 2 |
Sum = 51 · next multiple of 10 = 60 · check digit = 9 · actual last digit = 9
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.