ZAFER YILDIRIM MD,PHD
NPI 1508858812
Internal Medicine - Medical Oncology in Longview, WA

NPI Status: Active since August 22, 2005

Contact Information

1615 DELAWARE ST
LONGVIEW, WA
ZIP 98632
Phone: (360) 414-7878
Fax: (360) 414-7876

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  • Individual
  • Male
  • Internal Medicine
  • Medical Oncology

About ZAFER YILDIRIM

This page provides the complete NPI Profile along with additional information for Zafer Yildirim, an internist established in Longview, Washington with a medical specialization in Internal Medicine, focusing in medical oncology . The healthcare provider is registered in the NPI registry with number 1508858812 assigned on August 2005. The practitioner's primary taxonomy code is 207RX0202X with license number MD00043047 (WA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1508858812
Provider Name
ZAFER YILDIRIM MD,PHD
Gender
Male
Entity Type
Individual
Location Address
1615 DELAWARE ST LONGVIEW, WA 98632
Location Phone
(360) 414-7878
Location Fax
(360) 414-7876
Mailing Address
PO BOX 249 LONGVIEW, WA 98632
Mailing Phone
(360) 414-2048
Mailing Fax
(360) 414-7876
Is Sole Proprietor?
No
Enumeration Date
08-22-2005
Last Update Date
09-11-2025
Code Navigator

An internist like Zafer Yildirim 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 Medical Oncology

Taxonomy Code
207RX0202X
Type
Allopathic & Osteopathic Physicians
License No.
MD00043047
License State
WA
Taxonomy Description
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

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)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

MD00043047 (WA)
2207RH0000XAllopathic & Osteopathic Physicians

Internal Medicine
Hematology

MD00043047 (WA)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
8386294MEDICAID (05)WA 
8930190OTHER (01)WACRIME VICTIMS
P00154540OTHER (01)RR MEDICARE
029007MEDICAID (05)OR 
221981OTHER (01)WALABOR & IND.

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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 1508858812, 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 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
5
Unchanged
Pos 3
0
Doubled → 0
Pos 4
8
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
5
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
8
Unchanged
Pos 9
1
Doubled → 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 0 → 0 8 → 16 → 7 8 → 16 → 7 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 0 + 8 + 1 + 6 + 5 + 1 + 6 + 8 + 2 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1508858812.

Other Providers at the Same Location


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

Internal Medicine
1615 DELAWARE ST
LONGVIEW, WA 98632
Nurse Practitioner (Adult Health)
1615 DELAWARE ST
LONGVIEW, WA 98632
Family Medicine
1615 DELAWARE ST
LONGVIEW, WA 98632
Family Medicine
1615 DELAWARE ST
LONGVIEW, WA 98632
Physician Assistant
1615 DELAWARE ST
LONGVIEW, WA 98632
Colon & Rectal Surgery
1615 DELAWARE ST, SUITE 200
LONGVIEW, WA 98632
Surgery (Plastic and Reconstructive Surgery)
1615 DELAWARE ST, SUITE 200
LONGVIEW, WA 98632
Surgery
1615 DELAWARE ST, SUITE 200
LONGVIEW, WA 98632
Surgery
1615 DELAWARE ST
LONGVIEW, WA 98632
Surgery (Vascular Surgery)
1615 DELAWARE ST
LONGVIEW, WA 98632
Surgery
1615 DELAWARE ST
LONGVIEW, WA 98632
Psychiatry & Neurology (Neurology)
1615 DELAWARE ST
LONGVIEW, WA 98632
Anesthesiology
1615 DELAWARE ST
LONGVIEW, WA 98632
Internal Medicine (Pulmonary Disease)
1615 DELAWARE ST
LONGVIEW, WA 98632
Physician Assistant
1615 DELAWARE ST
LONGVIEW, WA 98632
Nurse Anesthetist, Certified Registered
1615 DELAWARE ST
LONGVIEW, WA 98632
Anesthesiology
1615 DELAWARE ST, ANES. DEPT
LONGVIEW, WA 98632
Anesthesiology
1615 DELAWARE ST, ANESTHESIA DEPT.
LONGVIEW, WA 98632
Anesthesiology
1615 DELAWARE ST, ANESTHESIOLOGY
LONGVIEW, WA 98632
Anesthesiology
1615 DELAWARE ST, ANESTHESIA DEPT.
LONGVIEW, WA 98632

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1508858812, enumerated as an "individual" on August 22, 2005.

The provider is located at 1615 DELAWARE ST LONGVIEW, WA 98632 and the phone number is (360) 414-7878.

Internal Medicine with taxonomy code 207RX0202X and a focus in Medical Oncology.

The provider might be accepting Accepts: Medicare, Medicaid and Railroad Medicare. Please consult your insurance carrier or call the provider to verify.