ZACHARY DAVID ERTRACHTER
NPI 1669169868
Internal Medicine in Tripler Army Medical Center, HI

NPI Status: Active since April 19, 2023

Contact Information

1 JARRETT WHITE RD
TRIPLER ARMY MEDICAL CENTER, HI
ZIP 96859
Phone: (888) 683-2778

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  • Individual
  • Male
  • Internal Medicine

About ZACHARY ERTRACHTER

This page provides the complete NPI Profile along with additional information for Zachary Ertrachter, an internist established in Tripler Army Medical Center, Hawaii with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1669169868 assigned on April 2023. The practitioner's primary taxonomy code is 207R00000X with license number 0102209433 (VA). The provider is registered as an individual and his NPI record was last updated May 2026.

NPI
1669169868
Provider Name
ZACHARY DAVID ERTRACHTER
Gender
Male
Entity Type
Individual
Location Address
1 JARRETT WHITE RD TRIPLER ARMY MEDICAL CENTER, HI 96859
Location Phone
(888) 683-2778
Mailing Address
1 JARRETT WHITE RD TRIPLER AMC, HI 96859
Mailing Phone
(888) 683-2778
Is Sole Proprietor?
No
Enumeration Date
04-19-2023
Last Update Date
05-04-2026
Code Navigator

An internist like Zachary Ertrachter is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, 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

Internal Medicine

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
0102209433
License State
VA
Taxonomy Description
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

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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 1669169868, we treat the final digit (8) 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).

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
6
Doubled → 12 → 1 + 2
Pos 4
9
Unchanged
Pos 5
1
Doubled → 2
Pos 6
6
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
8
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
8
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 6 → 12 → 3 1 → 2 9 → 18 → 9 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 + 2 + 9 + 2 + 6 + 1 + 8 + 8 + 1 + 2 + 24 = 72

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

The next multiple of ten after 72 is 80. The difference is the calculated check digit.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1669169868.

Other Providers at the Same Location


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

Hospitalist
1 JARRETT WHITE RD, DEPT OF MEDICINE (MCHK-DM)
TRIPLER ARMY MEDICAL CENTER, HI 96859
Registered Nurse
1 JARRETT WHITE RD, TRIPLER ARMY MEDICAL CENTER
TAMC, HI 96859
Registered Nurse (Medical-Surgical)
1 JARRETT WHITE RD, TRIPLER ARMY MEDICAL CENTER
TRIPLER AMC, HI 96859
Nurse Anesthetist, Certified Registered
1 JARRETT WHITE RD, ATTN: MCHK-QS
TRIPLER AMC, HI 96859
Licensed Practical Nurse
1 JARRETT WHITE RD, TRIPLER ARMY MEDICAL CENTER ATTN: MCHK-QS
TRIPLER AMC, HI 96859
Internal Medicine (Hematology & Oncology)
1 JARRETT WHITE RD, TRIPLER ARMY MEDICAL CENTER, ATTN:MCHK-QS
TRIPLER AMC, HI 96859
Registered Nurse
1 JARRETT WHITE RD, AMC
TAMC, HI 96859
Internal Medicine (Pulmonary Disease)
1 JARRETT WHITE RD, TRIPLER ARMY MEDICAL CENTER
TAMC, HI 96859
Internal Medicine (Hematology & Oncology)
1 JARRETT WHITE RD, MCHK-DMO, TAMC
TAMC, HI 96859
Clinical Nurse Specialist (Psychiatric/Mental Health, Adult)
1 JARRETT WHITE RD, TRIPLER ARMY MEDICAL CENTER ATTN:MCHK-QS
TRIPLER AMC, HI 96859
Pathology (Anatomic Pathology & Clinical Pathology)
1 JARRETT WHITE RD, TRIPLER ARMY MEDICAL CENTER
TRIPLER AMC, HI 96859
Marriage & Family Therapist
1 JARRETT WHITE RD, TRIPLER ARMY MEDIAL CENTER ATTN: MCHK-QS
TRIPLER AMC, HI 96859
Registered Nurse
1 JARRETT WHITE RD
TAMC, HI 96859
Physical Therapist (Orthopedic)
1 JARRETT WHITE RD, TRIPLER ARMY MEDICAL CENTER
TRIPLER AMC, HI 96859
Pediatrics
1 JARRETT WHITE RD, TRIPLER ARMY MEDICAL CENTER
TRIPLER AMC, HI 96859
Dietitian, Registered
1 JARRETT WHITE RD, TRIPLER AMC
TRIPLER AMC, HI 96859
Social Worker (Clinical)
1 JARRETT WHITE RD, TRIPLER ARMY MEDICAL CENTER ATTN: MCHK-QS
TRIPLER AMC, HI 96859
Radiology (Diagnostic Radiology)
1 JARRETT WHITE RD
TAMC, HI 96859
Internal Medicine
1 JARRETT WHITE RD
TAMC, HI 96859
Optometrist
1 JARRETT WHITE RD, OPTOMETRY SERVICE
TRIPLER AMC, HI 96859

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1669169868, enumerated as an "individual" on April 19, 2023.

The provider is located at 1 JARRETT WHITE RD TRIPLER ARMY MEDICAL CENTER, HI 96859 and the phone number is (888) 683-2778.

Internal Medicine with taxonomy code 207R00000X.