Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. ANNE IRELAND-GILL M.D.
NPI 1689658064
Specialist in Oxnard, CA

Active since November 30, 2005
1901 HOLSER WALK, SUITE #305, OXNARD, CA 93036(805) 485-2824(805) 485-2774 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

  • Individual
  • Female
  • Specialist

About ANNE IRELAND-GILL

This page provides the complete NPI Profile along with additional information for Anne Ireland-gill, a provider established in Oxnard, California with a medical specialization in Specialist. The healthcare provider is registered in the NPI registry with number 1689658064 assigned on November 2005. The practitioner's primary taxonomy code is 174400000X with license number G69734 (CA). The provider is registered as an individual and her NPI record was last updated July 2026.

NPI
1689658064
Provider Name
DR. ANNE IRELAND-GILL M.D.
Gender
Female
Entity Type
Individual
Location Address
1901 HOLSER WALK SUITE #305 OXNARD, CA 93036
Location Phone
(805) 485-2824
Location Fax
(805) 485-2774
Mailing Address
29420 CRESTHAVEN CT AGOURA HILLS, CA 91301
Mailing Phone
(818) 889-2226
Is Sole Proprietor?
No
Enumeration Date
11-30-2005
Last Update Date
07-13-2026
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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

Specialist

Taxonomy Code
174400000X
Type
Other Service Providers
License No.
G69734
License State
CA
Taxonomy Description
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

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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 1689658064, 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 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
6
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
9
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
5
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
0
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
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 8 → 16 → 7 6 → 12 → 3 8 → 16 → 7 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 6 + 9 + 1 + 2 + 5 + 1 + 6 + 0 + 1 + 2 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1689658064.

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Chiropractor
1901 HOLSER WALK, #315
OXNARD, CA 93036
Durable Medical Equipment & Medical Supplies (Customized Equipment)
1901 HOLSER WALK, SUITE 302
OXNARD, CA 93036
Clinic/Center (Oncology, Radiation)
1901 HOLSER WALK, SUITE 305
OXNARD, CA 93036
Radiology (Radiation Oncology)
1901 HOLSER WALK, STE 305
OXNARD, CA 93036

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1689658064, enumerated as an "individual" on November 30, 2005.

The provider is located at 1901 HOLSER WALK SUITE #305 OXNARD, CA 93036 and the phone number is (805) 485-2824.

Specialist with taxonomy code 174400000X.