DR. BERTRAM M. BROWN, OPTOMETRIST, PC
DR. BERTRAM M. BROWN, OPTOMETRIST, PC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1770639742, based in Richmond, VA. The organization lists 2 taxonomy classifications, with Occupational Vision Optometrist recorded as primary.
Getting there
The practice address on file is 4941A NINE MILE RD, Richmond, VA 23223. 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 |
|---|---|---|
| 0618000573 | VA | Occupational Vision Optometrist primary |
| 0618000573 | VA | Corneal and Contact Management Optometrist |
This provider holds licence 0618000573 issued in VA. 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 Occupational Vision covers
Optometrists who work in Occupational Vision, the branch of environmental optometry, consider all aspects of the relationship between work and vision, visual performances, eye safety, and health. NUCC Health Care Provider Taxonomy, code 152WX0102X
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 | |
|---|---|---|---|---|
| 152WX0102X | Occupational Vision Optometrist Occupational Vision | 0618000573 | VA | primary |
| 152WC0802X | Corneal and Contact Management Optometrist Corneal and Contact Management | 0618000573 | VA |
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 | 1770639742 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jan 25, 2007 |
| Last updated | Sep 11, 2025 |
| Status | Active |
| Practice address |
4941A NINE MILE RD Richmond, VA 23223 (804) 222-0557 Fax (804) 236-9398 |
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 | 7 | 7 | 0 | 6 | 3 | 9 | 7 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 7 | 5 | 0 | 3 | 3 | 9 | 7 | 8 |
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.