CHRISTOPHER JAMES WALERYSIAK PA-C
NPI 1891375937
Physician Assistant in Agana Heights, GU

NPI Status: Active since April 13, 2021

Contact Information

U.S. NAVAL HOSPITAL GUAM
BLDG 50, FARENHOLT AVENUE
AGANA HEIGHTS, GU
ZIP 96910
Phone: (671) 344-9340

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  • Individual
  • Male
  • Physician Assistant

About CHRISTOPHER WALERYSIAK

This page provides the complete NPI Profile along with additional information for Christopher Walerysiak, a primary care provider established in Agana Heights, Guam with a medical specialization in Physician Assistant. The healthcare provider is registered in the NPI registry with number 1891375937 assigned on April 2021. The practitioner's primary taxonomy code is 363A00000X with license number 0010-13374 (NC). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1891375937
Provider Name
CHRISTOPHER JAMES WALERYSIAK PA-C
Gender
Male
Entity Type
Individual
Location Address
U.S. NAVAL HOSPITAL GUAM BLDG 50, FARENHOLT AVENUE AGANA HEIGHTS, GU 96910
Location Phone
(671) 344-9340
Mailing Address
215 MICHEL CT HUBERT, NC 28539
Mailing Phone
(210) 556-5863
Is Sole Proprietor?
No
Enumeration Date
04-13-2021
Last Update Date
01-29-2025
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A primary care provider (PCP) like Christopher Walerysiak sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, etc .

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

Physician Assistant

Taxonomy Code
363A00000X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
0010-13374
License State
NC
Taxonomy Description
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

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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 1891375937, we treat the final digit (7) 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 7).

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

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 8 + 1 + 6 + 7 + 1 + 0 + 9 + 6 + 24 = 73

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

The next multiple of ten after 73 is 80. The difference is the calculated check digit.

80 - 73 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1891375937.

Other Providers at the Same Location


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

Military Health Care Provider (Independent Duty Corpsman)
U.S. NAVAL HOSPITAL GUAM, BLDG 1 FARENHOLT AVE
AGANA HEIGHTS, GU 96910
Pathology (Anatomic Pathology & Clinical Pathology)
U.S. NAVAL HOSPITAL GUAM, BUILDING #50 FARENHOLT AVE.
AGANA HEIGHTS, GU 96910
Radiology (Diagnostic Radiology)
U.S. NAVAL HOSPITAL GUAM, FARENHOLT AVE, BLDG 50
AGANA HEIGHTS, GU 96910
Pharmacist (Pharmacotherapy)
U.S. NAVAL HOSPITAL GUAM, FAREBHOLT AVE, BLDG 50
AGANA HEIGHTS, GU 96910
Dentist (General Practice)
U.S. NAVAL HOSPITAL GUAM, BLDG 50, FARENHOLT AVENUE
AGANA HEIGHTS, GU 96910
Physician Assistant
U.S. NAVAL HOSPITAL GUAM, FARENHOLT AVE, BLDG 50
AGANA HEIGHTS, GU 96910
Emergency Medicine
U.S. NAVAL HOSPITAL GUAM, FARENHOLT AVE, BLDG 50
AGANA HEIGHTS, GU 96910
Emergency Medicine
U.S. NAVAL HOSPITAL GUAM, FARENHOLT AVE, BLDG 50
AGANA HEIGHTS, GU 96910
Dentist (General Practice)
U.S. NAVAL HOSPITAL GUAM, BLDG 50, FARENHOLT AVE
AGANA HEIGHTS, GU 96910
Dentist (Oral and Maxillofacial Surgery)
U.S. NAVAL HOSPITAL GUAM, FARENHOLT AVE, BLDG 50
AGANA HEIGHTS, GU 96910
Nurse Anesthetist, Certified Registered
U.S. NAVAL HOSPITAL GUAM, BLDG 50, FARENHOLT AVENUE
AGANA HEIGHTS, GU 96910
Physician Assistant
U.S. NAVAL HOSPITAL GUAM, BLDG 50, FARENHOLT AVE
AGANA HEIGHTS, GU 96910
Internal Medicine
U.S. NAVAL HOSPITAL GUAM, BLDG 50, FARENHOLT AVENUE
AGANA HEIGHTS, GU 96910
Family Medicine
U.S. NAVAL HOSPITAL GUAM, BLDG 50, FARENHOLT AVENUE
AGANA HEIGHTS, GU 96910
Family Medicine
U.S. NAVAL HOSPITAL GUAM, BLDG 50 AGANA H
AGANA HEIGHTS, GU 96910
Pediatrics
U.S. NAVAL HOSPITAL GUAM, BLDG 50, FARENHOLT AVENUE
AGANA HEIGHTS, GU 96910
Dentist
U.S. NAVAL HOSPITAL GUAM, BLDG 50, FARENHOLT AVENUE
AGANA HEIGHTS, GU 96910
Internal Medicine
U.S. NAVAL HOSPITAL GUAM, FARENHOLT AVE, BLDG 50
AGANA HEIGHTS, GU 96910
Emergency Medicine
U.S. NAVAL HOSPITAL GUAM, BLDG 50, FARENHOLT AVE
AGANA HEIGHTS, GU 96910
Pharmacist
U.S. NAVAL HOSPITAL GUAM, FARENHOLT AVE, BLDG 50
AGANA HEIGHTS, GU 96910

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1891375937, enumerated as an "individual" on April 13, 2021.

The provider is located at U.S. NAVAL HOSPITAL GUAM BLDG 50, FARENHOLT AVENUE AGANA HEIGHTS, GU 96910 and the phone number is (671) 344-9340.

Physician Assistant with taxonomy code 363A00000X.