DR. JOHN PERRY ALSOBROOK II PHD
NPI 1770229981
Pathology - Clinical Laboratory Director, Non-physician in Seattle, WA

NPI Status: Active since May 10, 2022

Contact Information

1551 EASTLAKE AVE E STE 200
SEATTLE, WA
ZIP 98102
Phone: (206) 693-2119

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  • Individual
  • Male
  • Pathology
  • Clinical Laboratory Director, Non-physic...

About JOHN ALSOBROOK

This page provides the complete NPI Profile along with additional information for John Alsobrook, a provider established in Seattle, Washington with a medical specialization in Pathology, focusing in clinical laboratory director, non-physician . The healthcare provider is registered in the NPI registry with number 1770229981 assigned on May 2022. The practitioner's primary taxonomy code is 247ZC0005X. The provider is registered as an individual and his NPI record was last updated May 2026.

NPI
1770229981
Provider Name
DR. JOHN PERRY ALSOBROOK II PHD
Gender
Male
Entity Type
Individual
Location Address
1551 EASTLAKE AVE E STE 200 SEATTLE, WA 98102
Location Phone
(206) 693-2119
Mailing Address
643 CORONADO RD CORRALES, NM 87048
Mailing Phone
(505) 301-4195
Is Sole Proprietor?
Yes
Enumeration Date
05-10-2022
Last Update Date
05-31-2026
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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

Pathology Clinical Laboratory Director, Non-physician

Taxonomy Code
247ZC0005X
Type
Technologists, Technicians & Other Technical Service Providers
Taxonomy Description
An individual who is state-licensed as a clinical laboratory director and meets the qualifications in the Clinical Laboratory Improvement Amendments of 1988 for non-physicians (non-MD/DO) as defined in the CFR 42 Part 493.1405.

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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 1770229981, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

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
2
Doubled → 4
Pos 6
2
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
9
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
1
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 2 → 4 9 → 18 → 9 8 → 16 → 7

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 + 4 + 2 + 1 + 8 + 9 + 1 + 6 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1770229981.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1770229981, enumerated as an "individual" on May 10, 2022.

The provider is located at 1551 EASTLAKE AVE E STE 200 SEATTLE, WA 98102 and the phone number is (206) 693-2119.

Pathology with taxonomy code 247ZC0005X and a focus in Clinical Laboratory Director, Non-physician.