MARY MCMAINS OD MED AN OPTOMETRIC CORPORATION
MARY MCMAINS OD MED AN OPTOMETRIC CORPORATION is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1144369372, based in San Diego, CA. The organization lists 5 taxonomy classifications, with Corneal and Contact Management Optometrist recorded as primary.
Getting there
The practice address on file is 3355 4TH AVE, San Diego, CA 92103. 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 |
|---|---|---|
| 11525T | CA | Corneal and Contact Management Optometrist primary |
| 11525T | CA | Pediatric Optometrist |
| 11525T | CA | Sports Vision Optometrist |
| 11525T | CA | Vision Therapy Optometrist |
| 11525T | CA | Occupational Vision Optometrist |
This provider holds licence 11525T 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 Corneal and Contact Management covers
The professional activities performed by an Optometrist related to the fitting of contact lenses to an eye, ongoing evaluation of the cornea's ability to sustain successful contact lens wear, and treatment of any external eye or corneal condition which can affect contact lens wear. NUCC Health Care Provider Taxonomy, code 152WC0802X
All registered taxonomy codes
This provider registers 5 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 152WC0802X | Corneal and Contact Management Optometrist Corneal and Contact Management | 11525T | CA | primary |
| 152WP0200X | Pediatric Optometrist Pediatrics | 11525T | CA | |
| 152WS0006X | Sports Vision Optometrist Sports Vision | 11525T | CA | |
| 152WV0400X | Vision Therapy Optometrist Vision Therapy | 11525T | CA | |
| 152WX0102X | Occupational Vision Optometrist Occupational Vision | 11525T | 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-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 | 1144369372 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Feb 5, 2007 |
| Last updated | Sep 11, 2025 |
| Status | Active |
| Practice address |
3355 4TH AVE San Diego, CA 92103 (619) 229-9767 Fax (619) 692-0747 |
| Other identifiers |
COR 978
· CORPORATE LICENSE NUMBER (CA) |
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 | 1 | 4 | 4 | 3 | 6 | 9 | 3 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 8 | 4 | 6 | 6 | 9 | 3 | 5 |
Sum = 68 · next multiple of 10 = 70 · check digit = 2 · actual last digit = 2
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.