LEWIS S BLISS MD
LEWIS S BLISS MD is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003084393, based in Sacramento, CA. It is classified under Ophthalmology Physician.
Getting there
Here is what surrounds this office in Sacramento, based on OpenStreetMap data collected Sep 4, 2026. Parking is available about 0.37 mi away. The nearest transit stop is 0.40 mi away, served by Auburn Blvd & Camden Cir.
Getting here and what is nearby
Restaurant Taco Bell 0.33 mi ~7 min
6031 Greenback Lane, Citrus Heights 95621
Mo-Th 08:00-02:00; Fr-Sa 08:00-03:00; Su 08:00-02:00
Restaurant Pho Saigon Palace 0.33 mi ~7 min
6029 Greenback Lane, Citrus Heights 95621
Parking 0.36 mi ~8 min
Parking 0.36 mi ~8 min
Restaurant Pearl House Chinese Resturant 0.36 mi ~8 min
6053 Greenback Lane, Citrus Heights 95621
Parking 0.37 mi ~8 min
Transit Auburn Blvd & Shadow Ln 0.38 mi ~8 min
Transit Auburn Blvd & Greenback Ln 0.38 mi ~8 min
Convenience ampm 0.38 mi ~8 min
6140 Greenback Lane, Citrus Heights 95621
Gas station Arco 0.38 mi ~8 min
6140 Greenback Lane, Citrus Heights 95621
Grocery Grocery Outlet 0.38 mi ~8 min
6059 Greenback Lane, Citrus Heights 95621
Transit Auburn Blvd & Camden Cir 0.40 mi ~8 min
Gas station Shell 0.40 mi ~8 min
Convenience Shell 0.41 mi ~9 min
Gas station 7-Eleven 0.42 mi ~9 min
Convenience 7-Eleven 0.43 mi ~9 min
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 |
|---|---|---|
| C42178 | CA | Ophthalmology Physician primary |
This provider holds licence C42178 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 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
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003084393 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Feb 20, 2008 |
| Last updated | May 9, 2014 |
| Status | Active |
| Practice address |
5773 GREENBACK LN Sacramento, CA 95841 (916) 863-3143 Fax (916) 863-3148 |
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 | 0 | 8 | 4 | 3 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 8 | 8 | 3 | 9 |
Sum = 57 · next multiple of 10 = 60 · check digit = 3 · actual last digit = 3
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.