HARVEY I. WALLACK, MD, A MEDICAL CORPORATION
NPI 1902905409
Urology in Thousand Oaks, CA

NPI Status: Active since September 21, 2006

Contact Information

227 W JANSS RD STE 125
THOUSAND OAKS, CA
ZIP 91360
Phone: (805) 496-4459
Fax: (805) 496-3250

NPI Profile Information
Primary Taxonomy
Group Taxonomy
Authorized Official
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Organization
Urology

About HARVEY I. WALLACK, MD, A MEDICAL CORPORATION

This page provides the complete NPI Profile along with additional information for Harvey I. Wallack, Md, A Medical Corporation, a provider established in Thousand Oaks, California operating as a Urology. The healthcare provider is registered in the NPI registry with number 1902905409 assigned on September 2006. The practitioner's primary taxonomy code is 208800000X with license number G26513 (CA). The provider is registered as an organization and their NPI record was last updated 18 years ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Harvey I Wallack M.d. (President/physician)

NPI: 1902905409
Provider Name: HARVEY I. WALLACK, MD, A MEDICAL CORPORATION
Entity Type: Organization
Location Address: 227 W JANSS RD STE 125 THOUSAND OAKS, CA 91360
Location Phone: (805) 496-4459
Location Fax: (805) 496-3250
Mailing Address: 227 W JANSS RD STE 125 THOUSAND OAKS, CA 91360
Mailing Phone: (805) 496-4459
Mailing Fax: (805) 496-3250
Is Sole Proprietor?: No
Is Organization Subpart?: No
Enumeration Date: 09-21-2006
Last Update Date: 12-17-2007
Code Navigator

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: Urology
Taxonomy Code: 208800000X
Type: Allopathic & Osteopathic Physicians
License No.: G26513
License State: CA
Taxonomy Description: A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name: HARVEY I WALLACK M.D.
Authorized Official Title: PRESIDENT/PHYSICIAN
Authorized Official Phone: (805) 496-4459

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 1902905409, we treat the final digit (9) 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 51. The final step is to find the difference between that total and the next multiple of ten (60 - 51 = 9).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 0

Pos 4

Unchanged

Pos 5

Doubled → 18 → 1 + 8

Pos 6

Unchanged

Pos 7

Doubled → 10 → 1 + 0

Pos 8

Unchanged

Pos 9

Doubled → 0

Check

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 9 → 18 → 9 5 → 10 → 1 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 0 + 2 + 1 + 8 + 0 + 1 + 0 + 4 + 0 + 24 = 51

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

The next multiple of ten after 51 is 60. The difference is the calculated check digit.

60 - 51 = 9

This NPI is valid

The calculated check digit is 9, which matches the last digit of 1902905409.