DONALD F NORTMAN MD A MEDICAL CORPORATION
NPI 1679628796
Internal Medicine - Nephrology in Los Angeles, CA

NPI Status: Active since January 25, 2007

Contact Information

8635 W 3RD ST
865W
LOS ANGELES, CA
ZIP 90048
Phone: (310) 659-1668
Fax: (310) 659-6237

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  • Organization
  • Internal Medicine
  • Nephrology

About DONALD F NORTMAN MD A MEDICAL CORPORATION

This page provides the complete NPI Profile along with additional information for Donald F Nortman Md A Medical Corporation, an internist established in Los Angeles, California operating as a Internal Medicine, focusing in nephrology . The healthcare provider is registered in the NPI registry with number 1679628796 assigned on January 2007. The practitioner's primary taxonomy code is 207RN0300X with license number G34241 (CA). The provider is registered as an organization and their NPI record was last updated May 2026. 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 Dr. Donald F Nortman Md (President)

NPI
1679628796
Provider Name
DONALD F NORTMAN MD A MEDICAL CORPORATION
Entity Type
Organization
Location Address
8635 W 3RD ST 865W LOS ANGELES, CA 90048
Location Phone
(310) 659-1668
Location Fax
(310) 659-6237
Mailing Address
8635 W 3RD ST 865W LOS ANGELES, CA 90048
Mailing Phone
(310) 659-1668
Mailing Fax
(310) 659-6237
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
01-25-2007
Last Update Date
05-28-2026
Code Navigator

An internist like Donald F Nortman Md A Medical Corporation 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 Nephrology

Taxonomy Code
207RN0300X
Type
Allopathic & Osteopathic Physicians
License No.
G34241
License State
CA
Taxonomy Description
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

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

DR. DONALD F NORTMAN MD

Authorized Official Title
PRESIDENT
Authorized Official Phone
(310) 659-1668

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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 1679628796, 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 74. The final step is to find the difference between that total and the next multiple of ten (80 - 74 = 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
6
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
9
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
2
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
7
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
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 7 → 14 → 5 6 → 12 → 3 8 → 16 → 7 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 4 + 9 + 1 + 2 + 2 + 1 + 6 + 7 + 1 + 8 + 24 = 74

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

The next multiple of ten after 74 is 80. The difference is the calculated check digit.

80 - 74 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1679628796.

Other Providers at the Same Location


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

Internal Medicine (Cardiovascular Disease)
8635 W 3RD ST, STE# 1050 W
LOS ANGELES, CA 90048
Internal Medicine (Cardiovascular Disease)
8635 W 3RD ST, STE# 1050W
LOS ANGELES, CA 90048
Surgery
8635 W 3RD ST, STE# 795W
LOS ANGELES, CA 90048
Internal Medicine (Nephrology)
8635 W 3RD ST, STE# 865W
LOS ANGELES, CA 90048
Obstetrics & Gynecology (Gynecology)
8635 W 3RD ST, SUITE 680 WEST
LOS ANGELES, CA 90048
Internal Medicine (Cardiovascular Disease)
8635 W 3RD ST, SUITE 355W
LOS ANGELES, CA 90048
Specialist
8635 W 3RD ST, SUITE 1 WEST
LOS ANGELES, CA 90048
Urology
8635 W 3RD ST, SUITE 1 WEST
LOS ANGELES, CA 90048
Internal Medicine (Nephrology)
8635 W 3RD ST, STE# 695W
LOS ANGELES, CA 90048
Urology
8635 W 3RD ST, SUITE 1W
LOS ANGELES, CA 90048
Internal Medicine (Nephrology)
8635 W 3RD ST, STE#485W
LOS ANGELES, CA 90048
Urology
8635 W 3RD ST
LOS ANGELES, CA 90048
Internal Medicine (Gastroenterology)
8635 W 3RD ST, SUITE 960-W
LOS ANGELES, CA 90048
Internal Medicine (Cardiovascular Disease)
8635 W 3RD ST, SUITE 1050W
LOS ANGELES, CA 90048
Urology
8635 W 3RD ST, SUITE 460W
LOS ANGELES, CA 90048
Urology
8635 W 3RD ST, 765W
LOS ANGELES, CA 90048
Urology
8635 W 3RD ST, SUITE 1 WEST
LOS ANGELES, CA 90048
Internal Medicine
8635 W 3RD ST, SUITE 790W
LOS ANGELES, CA 90048
Urology
8635 W 3RD ST, SUITE 1 WEST
LOS ANGELES, CA 90048
Occupational Therapist
8635 W 3RD ST, SUITE # 465W
LOS ANGELES, CA 90048

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1679628796, enumerated as an "organization" on January 25, 2007.

The provider is located at 8635 W 3RD ST 865W LOS ANGELES, CA 90048 and the phone number is (310) 659-1668.

Internal Medicine with taxonomy code 207RN0300X and a focus in Nephrology.