KATHERINE GAZLAY PHARMD
NPI 1720408362
Pharmacist - Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist in Portland, OR

NPI Status: Active since April 22, 2014

Contact Information

3600 N INTERSTATE AVE
PORTLAND, OR
ZIP 97227
Phone: (503) 528-2465

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  • Individual
  • Female
  • Pharmacist
  • Pharmacist Clinician (PhC)/ Clinical Pha...

About KATHERINE GAZLAY

This page provides the complete NPI Profile along with additional information for Katherine Gazlay, a provider established in Portland, Oregon with a medical specialization in Pharmacist, focusing in pharmacist clinician (phc)/ clinical pharmacy specialist . The healthcare provider is registered in the NPI registry with number 1720408362 assigned on April 2014. The practitioner's primary taxonomy code is 1835P0018X with license number 0013673 (OR). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1720408362
Provider Name
KATHERINE GAZLAY PHARMD
Gender
Female
Entity Type
Individual
Location Address
3600 N INTERSTATE AVE PORTLAND, OR 97227
Location Phone
(503) 528-2465
Mailing Address
5717 NE 138TH AVE PORTLAND, OR 97230
Is Sole Proprietor?
No
Enumeration Date
04-22-2014
Last Update Date
05-21-2025
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A pharmacist like Katherine Gazlay fills prescription medications, verifying instructions from physicians and offers expertise in the safe use of prescriptions. Pharmacists instruct patients on how to take a prescribed medicine and educate patients about potential side effects. Pharmacists might also conduct health and wellness screenings, provide immunizations, oversee the medications given to patients, and provide advice on healthy lifestyles.

Location Map

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

Pharmacist Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist

Taxonomy Code
1835P0018X
Type
Pharmacy Service Providers
License No.
0013673
License State
OR
Taxonomy Description
Pharmacist Clinician/Clinical Pharmacy Specialist is a pharmacist with additional training and an expanded scope of practice that may include prescriptive authority, therapeutic management, and disease management.

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)
1183500000XPharmacy Service Providers

Pharmacist

65586 (CA)
21835P0018XPharmacy Service Providers

Pharmacist
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist

PH60397305 (WA)

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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 1720408362, 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 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
2
Doubled → 4
Pos 4
0
Unchanged
Pos 5
4
Doubled → 8
Pos 6
0
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
3
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
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 2 → 4 4 → 8 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 + 7 + 4 + 0 + 8 + 0 + 1 + 6 + 3 + 1 + 2 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1720408362.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Audiologist
3600 N INTERSTATE AVE
PORTLAND, OR 97227
Optometrist
3600 N INTERSTATE AVE
PORTLAND, OR 97227
Ophthalmology
3600 N INTERSTATE AVE
PORTLAND, OR 97227
Preventive Medicine (Preventive Medicine/Occupational Environmental Medicine)
3600 N INTERSTATE AVE
PORTLAND, OR 97227
Specialist
3600 N INTERSTATE AVE
PORTLAND, OR 97227
Orthopaedic Surgery
3600 N INTERSTATE AVE
PORTLAND, OR 97227
Occupational Therapist (Pediatrics)
3600 N INTERSTATE AVE
PORTLAND, OR 97227
Optometrist (Low Vision Rehabilitation)
3600 N INTERSTATE AVE
PORTLAND, OR 97227
Dermatology
3600 N INTERSTATE AVE
PORTLAND, OR 97227
Technician/Technologist (Optician)
3600 N INTERSTATE AVE
PORTLAND, OR 97227
Dermatology
3600 N INTERSTATE AVE
PORTLAND, OR 97227
Physical Medicine & Rehabilitation
3600 N INTERSTATE AVE
PORTLAND, OR 97227
Optometrist
3600 N INTERSTATE AVE
PORTLAND, OR 97227
Physical Medicine & Rehabilitation
3600 N INTERSTATE AVE
PORTLAND, OR 97227
Speech-Language Pathologist
3600 N INTERSTATE AVE, ATTN: SPEECH
PORTLAND, OR 97227
Physical Therapist
3600 N INTERSTATE AVE
PORTLAND, OR 97227
Ophthalmology
3600 N INTERSTATE AVE
PORTLAND, OR 97227
Internal Medicine (Hematology & Oncology)
3600 N INTERSTATE AVE
PORTLAND, OR 97227
Physical Therapist
3600 N INTERSTATE AVE
PORTLAND, OR 97227
Physical Medicine & Rehabilitation
3600 N INTERSTATE AVE
PORTLAND, OR 97227

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1720408362, enumerated as an "individual" on April 22, 2014.

The provider is located at 3600 N INTERSTATE AVE PORTLAND, OR 97227 and the phone number is (503) 528-2465.

Pharmacist with taxonomy code 1835P0018X and a focus in Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist.