DR. BERTRAM M. BROWN, OPTOMETRIST, PC
NPI 1770639742
Optometrist - Occupational Vision in Richmond, VA

NPI Status: Active since January 25, 2007

Contact Information

4941A NINE MILE RD
RICHMOND, VA
ZIP 23223
Phone: (804) 222-0557
Fax: (804) 236-9398

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  • Organization
  • Optometrist
  • Occupational Vision

About DR. BERTRAM M. BROWN, OPTOMETRIST, PC

This page provides the complete NPI Profile along with additional information for Dr. Bertram M. Brown, Optometrist, Pc, a provider established in Richmond, Virginia operating as a Optometrist, focusing in occupational vision . The healthcare provider is registered in the NPI registry with number 1770639742 assigned on January 2007. The practitioner's primary taxonomy code is 152WX0102X with license number 0618000573 (VA). The provider is registered as an organization and their NPI record was last updated one year ago. Dr. Bertram M. Brown, Optometrist, Pc operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Dr. Bertram Maxwell Brown O. D. (Owner)

NPI
1770639742
Provider Name
DR. BERTRAM M. BROWN, OPTOMETRIST, PC
Entity Type
Organization
Location Address
4941A NINE MILE RD RICHMOND, VA 23223
Location Phone
(804) 222-0557
Location Fax
(804) 236-9398
Mailing Address
4941A NINE MILE RD RICHMOND, VA 23223
Mailing Phone
(804) 222-0557
Mailing Fax
(804) 236-9398
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
01-25-2007
Last Update Date
09-11-2025
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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Optometrist Occupational Vision

Taxonomy Code
152WX0102X
Type
Eye and Vision Services Providers
License No.
0618000573
License State
VA
Taxonomy Description
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1152WC0802XEye and Vision Services Providers

Optometrist
Corneal and Contact Management

0618000573 (VA)

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

DR. BERTRAM MAXWELL BROWN O. D.

Authorized Official Title
OWNER
Authorized Official Phone
(804) 222-0557

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1770639742, we treat the final digit (2) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
7
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
0
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
3
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
7
Unchanged
Pos 9
4
Doubled → 8
Check
2
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 7 → 14 → 5 6 → 12 → 3 9 → 18 → 9 4 → 8

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 7 + 1 + 4 + 0 + 1 + 2 + 3 + 1 + 8 + 7 + 8 + 24 = 68

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1770639742.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1770639742, enumerated as an "organization" on January 25, 2007.

The provider is located at 4941A NINE MILE RD RICHMOND, VA 23223 and the phone number is (804) 222-0557.

Optometrist with taxonomy code 152WX0102X and a focus in Occupational Vision.