JAN GRENDAR M.D.
NPI 1881078426
Surgery in Portland, OR

NPI Status: Active since July 14, 2015

Contact Information

4805 NE GLISAN ST
SUITE 6N60
PORTLAND, OR
ZIP 97213
Phone: (503) 215-3258
Fax: (503) 215-3254

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  • Individual
  • Male
  • Surgery

About JAN GRENDAR

This page provides the complete NPI Profile along with additional information for Jan Grendar, a provider established in Portland, Oregon with a medical specialization in Surgery. The healthcare provider is registered in the NPI registry with number 1881078426 assigned on July 2015. The practitioner's primary taxonomy code is 208600000X with license number FE172129 (OR). The provider is registered as an individual and his NPI record was last updated 11 years ago.

NPI
1881078426
Provider Name
JAN GRENDAR M.D.
Gender
Male
Entity Type
Individual
Location Address
4805 NE GLISAN ST SUITE 6N60 PORTLAND, OR 97213
Location Phone
(503) 215-3258
Location Fax
(503) 215-3254
Mailing Address
905 NE 47TH AVE APT 1 PORTLAND, OR 97213
Mailing Phone
(503) 215-3258
Is Sole Proprietor?
No
Enumeration Date
07-14-2015
Last Update Date
08-06-2015
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A surgeon like Jan Grendar treats injuries, diseases, and deformities through surgical operations. A surgeon could correct physical deformities, repair bone and tissue, or perform preventive or elective surgeries. Surgeons also examine patients, perform and interpret diagnostic tests, and provide counsel on preventive healthcare.

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

Surgery

Taxonomy Code
208600000X
Type
Allopathic & Osteopathic Physicians
License No.
FE172129
License State
OR
Taxonomy Description
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

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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 1881078426, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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
8
Doubled → 16 → 1 + 6
Pos 4
1
Unchanged
Pos 5
0
Doubled → 0
Pos 6
7
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
4
Unchanged
Pos 9
2
Doubled → 4
Check
6
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 8 → 16 → 7 0 → 0 8 → 16 → 7 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 6 + 1 + 0 + 7 + 1 + 6 + 4 + 4 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1881078426.

Other Providers at the Same Location


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

Internal Medicine
4805 NE GLISAN ST, SUITE BG05
PORTLAND, OR 97213
Internal Medicine (Medical Oncology)
4805 NE GLISAN ST, 6N40
PORTLAND, OR 97213
Registered Nurse (General Practice)
4805 NE GLISAN ST, 3E
PORTLAND, OR 97213
Internal Medicine
4805 NE GLISAN ST, SUITE BG05
PORTLAND, OR 97213
Internal Medicine
4805 NE GLISAN ST, SUITE BG05
PORTLAND, OR 97213
Internal Medicine
4805 NE GLISAN ST, BG05
PORTLAND, OR 97213
Psychiatry & Neurology (Psychiatry)
4805 NE GLISAN ST, 5L
PORTLAND, OR 97213
Registered Nurse
4805 NE GLISAN ST
PORTLAND, OR 97213
Psychiatry & Neurology (Psychiatry)
4805 NE GLISAN ST, 3E
PORTLAND, OR 97213
Personal Emergency Response Attendant
4805 NE GLISAN ST
PORTLAND, OR 97213
Nurse Practitioner (Family)
4805 NE GLISAN ST
PORTLAND, OR 97213
Nurse Practitioner (Family)
4805 NE GLISAN ST
PORTLAND, OR 97213
Nurse Anesthetist, Certified Registered
4805 NE GLISAN ST, PROVIDENCE PORTLAND MEDICAL CENTER
PORTLAND, OR 97213
Nurse Practitioner (Adult Health)
4805 NE GLISAN ST, STE 6N50
PORTLAND, OR 97213
Emergency Medicine
4805 NE GLISAN ST
PORTLAND, OR 97213
Emergency Medicine
4805 NE GLISAN ST
PORTLAND, OR 97213
Emergency Medicine
4805 NE GLISAN ST
PORTLAND, OR 97213
Emergency Medicine
4805 NE GLISAN ST
PORTLAND, OR 97213
Emergency Medicine
4805 NE GLISAN ST
PORTLAND, OR 97213
Emergency Medicine
4805 NE GLISAN ST
PORTLAND, OR 97213

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1881078426, enumerated as an "individual" on July 14, 2015.

The provider is located at 4805 NE GLISAN ST SUITE 6N60 PORTLAND, OR 97213 and the phone number is (503) 215-3258.

Surgery with taxonomy code 208600000X.