COMPREHENSIVE GI CARE, A PROFESSIONAL MEDICAL GROUP, INC.
NPI 1952564965
Internal Medicine - Gastroenterology in Los Alamitos, CA

NPI Status: Active since July 09, 2008

Contact Information

4772 KATELLA AVE
#200
LOS ALAMITOS, CA
ZIP 90720
Phone: (562) 596-5552
Fax: (562) 596-5340

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  • Organization
  • Internal Medicine
  • Gastroenterology

About COMPREHENSIVE GI CARE, A PROFESSIONAL MEDICAL GROUP, INC.

This page provides the complete NPI Profile along with additional information for Comprehensive Gi Care, A Professional Medical Group, Inc., an internist established in Los Alamitos, California operating as a Internal Medicine, focusing in gastroenterology . The healthcare provider is registered in the NPI registry with number 1952564965 assigned on July 2008. The practitioner's primary taxonomy code is 207RG0100X. The provider is registered as an organization and their NPI record was last updated one year 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 Lisa Hertz (President)

NPI
1952564965
Provider Name
COMPREHENSIVE GI CARE, A PROFESSIONAL MEDICAL GROUP, INC.
Entity Type
Organization
Location Address
4772 KATELLA AVE #200 LOS ALAMITOS, CA 90720
Location Phone
(562) 596-5552
Location Fax
(562) 596-5340
Mailing Address
4772 KATELLA AVE #200 LOS ALAMITOS, CA 90720
Mailing Phone
(562) 596-5552
Mailing Fax
(562) 596-5340
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
07-09-2008
Last Update Date
08-13-2025
Code Navigator

An internist like Comprehensive Gi Care, A Professional Medical Group, Inc. 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 Gastroenterology

Taxonomy Code
207RG0100X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

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

LISA HERTZ

Authorized Official Title
PRESIDENT
Authorized Official Phone
(562) 596-5552

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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 1952564965, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

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
9
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
2
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
6
Unchanged
Pos 7
4
Doubled → 8
Pos 8
9
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
5
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 5 → 10 → 1 5 → 10 → 1 4 → 8 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 0 + 2 + 1 + 0 + 6 + 8 + 9 + 1 + 2 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1952564965.

Other Providers at the Same Location


The following 7 providers are registered at the same or a nearby location.

Specialist
4772 KATELLA AVE, SUITE 100
LOS ALAMITOS, CA 90720
Chiropractor
4772 KATELLA AVE, STE. # 102
LOS ALAMITOS, CA 90720
Acupuncturist
4772 KATELLA AVE, #102
LOS ALAMITOS, CA 90720
Occupational Therapist
4772 KATELLA AVE, SUITE 100
LOS ALAMITOS, CA 90720
Chiropractor
4772 KATELLA AVE, SUITE 102
LOS ALAMITOS, CA 90720
Internal Medicine (Gastroenterology)
4772 KATELLA AVE, #200
LOS ALAMITOS, CA 90720
Physician Assistant
4772 KATELLA AVE, ST 200
LOS ALAMITOS, CA 90720

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1952564965, enumerated as an "organization" on July 09, 2008.

The provider is located at 4772 KATELLA AVE #200 LOS ALAMITOS, CA 90720 and the phone number is (562) 596-5552.

Internal Medicine with taxonomy code 207RG0100X and a focus in Gastroenterology.