123 MEDICAL GROUP CORP.
NPI 1588029771
Family Medicine in Walnut, CA

NPI Status: Active since December 15, 2015

Contact Information

18800 AMAR RD STE C12
WALNUT, CA
ZIP 91789
Phone: (626) 788-9691
Fax: (626) 608-0318

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  • Organization
  • Family Medicine
  • CLIA Number: 05D2112521
  • CLIA Cert. Type: Community Clinic
  • CLIA Exp. Date: 05-01-2028

About 123 MEDICAL GROUP CORP.

This page provides the complete NPI Profile along with additional information for 123 Medical Group Corp., a primary care provider established in Walnut, California operating as a Family Medicine. The healthcare provider is registered in the NPI registry with number 1588029771 assigned on December 2015. The practitioner's primary taxonomy code is 207Q00000X. The provider is registered as an organization and their NPI record was last updated 4 years ago. 123 Medical Group Corp. operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Dr. Allan C Chang Lac, Dom, Daom (President)

NPI
1588029771
Provider Name
123 MEDICAL GROUP CORP.
Entity Type
Organization
Location Address
18800 AMAR RD STE C12 WALNUT, CA 91789
Location Phone
(626) 788-9691
Location Fax
(626) 608-0318
Mailing Address
18800 AMAR RD STE C12 WALNUT, CA 91789
Mailing Phone
(626) 788-9691
Mailing Fax
(626) 608-0318
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
12-15-2015
Last Update Date
08-09-2022
Code Navigator

A primary care provider (PCP) like 123 Medical Group Corp. sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, 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

Family Medicine

Taxonomy Code
207Q00000X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

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)
1171100000XOther Service Providers

Acupuncturist

 
2207V00000XAllopathic & Osteopathic Physicians

Obstetrics & Gynecology

 

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

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.

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

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. ALLAN C CHANG LAC, DOM, DAOM

Authorized Official Title
PRESIDENT
Authorized Official Phone
(626) 889-6917

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
1588029771OTHER (01)FAMILY MEDICINE

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
05D2112521
Facility Type
Community Clinic
Certificate Effective Date
May 02, 2026
Certificate Expiration Date
May 01, 2028
Laboratory Director
THOMAS T. LEE
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to 123 Medical Group Corp. to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

Reviews for 123 MEDICAL GROUP CORP.

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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 1588029771, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

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
8
Doubled → 16 → 1 + 6
Pos 4
8
Unchanged
Pos 5
0
Doubled → 0
Pos 6
2
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
7
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
1
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 9 → 18 → 9 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 6 + 8 + 0 + 2 + 1 + 8 + 7 + 1 + 4 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1588029771.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Acupuncturist
18800 AMAR RD STE C12
WALNUT, CA 91789

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1588029771, enumerated as an "organization" on December 15, 2015.

The provider is located at 18800 AMAR RD STE C12 WALNUT, CA 91789 and the phone number is (626) 788-9691.

Family Medicine with taxonomy code 207Q00000X.

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