UNIVERSITY OF MARYLAND EYE ASSOCIATES, P.A.
NPI 1427905504
Optometrist in Columbia, MD

NPI Status: Active since March 16, 2026

Contact Information

5900 WATERLOO RD STE 230
COLUMBIA, MD
ZIP 21045
Phone: (410) 328-5929
Fax: (410) 328-6346

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  • Organization
  • Optometrist

About UNIVERSITY OF MARYLAND EYE ASSOCIATES, P.A.

This page provides the complete NPI Profile along with additional information for University Of Maryland Eye Associates, P.a., a provider established in Columbia, Maryland operating as a Optometrist. The healthcare provider is registered in the NPI registry with number 1427905504 assigned on March 2026. The practitioner's primary taxonomy code is 152W00000X. The provider is registered as an organization and their NPI record was last updated March 2026. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Karol Zimmerman (Director)

NPI
1427905504
Provider Name
UNIVERSITY OF MARYLAND EYE ASSOCIATES, P.A.
Entity Type
Organization
Location Address
5900 WATERLOO RD STE 230 COLUMBIA, MD 21045
Location Phone
(410) 328-5929
Location Fax
(410) 328-6346
Mailing Address
PO BOX 64691 BALTIMORE, MD 21264
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
03-16-2026
Last Update Date
03-16-2026
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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

Taxonomy Code
152W00000X
Type
Eye and Vision Services Providers
Taxonomy Description
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area 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

KAROL ZIMMERMAN

Authorized Official Title
DIRECTOR
Authorized Official Phone
(667) 214-1620

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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 1427905504, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

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
4
Unchanged
Pos 3
2
Doubled → 4
Pos 4
7
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
0
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
5
Unchanged
Pos 9
0
Doubled → 0
Check
4
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 2 → 4 9 → 18 → 9 5 → 10 → 1 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 4 + 7 + 1 + 8 + 0 + 1 + 0 + 5 + 0 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1427905504.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Ophthalmology
5900 WATERLOO RD STE 230
COLUMBIA, MD 21045

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1427905504, enumerated as an "organization" on March 16, 2026.

The provider is located at 5900 WATERLOO RD STE 230 COLUMBIA, MD 21045 and the phone number is (410) 328-5929.

Optometrist with taxonomy code 152W00000X.