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AMG, A PROFESSIONAL MEDICAL CORPORATION
NPI 1558306266
Internal Medicine in Alhambra, CA

Active since June 17, 2006CLIA 05D2313826 · Waiver
1658 W VALLEY BLVD STE 120, ALHAMBRA, CA 91803(626) 282-0282(626) 282-0939 Get Directions Write a Review

NPPES record last updated: November 18, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Nov 18, 2025, Aug 5, 2024, May 14, 2024 and 3 more (6 updates tracked since 2021).

About Amg, A Professional Medical Corporation NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

AMG, A PROFESSIONAL MEDICAL CORPORATION (NPI 1558306266) is a healthcare organization registered as an internal medicine in Alhambra, California and active in the NPI registry since June 2006. The organization holds a CLIA Waiver certificate valid through November 6, 2026, maintains 10 additional practice locations, and lists Thomas S. Lam, Director, as its authorized official.

NPPES Registry Identity

NPI1558306266
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameAMG, A PROFESSIONAL MEDICAL CORPORATION
Location Address1658 W VALLEY BLVD STE 120Alhambra, CA 91803-2370
Mailing Address1668 S Garfield Ave Fl 2Alhambra, CA 91801-5400 · (626) 282-0282 · Fax (626) 282-0939
Phone(626) 282-0282
Fax(626) 282-0939
Organization SubpartNo
Authorized OfficialThomas S. LamDirector · (626) 282-0282
Enumeration DateJune 17, 2006
Last NPPES UpdateNovember 18, 20256 updates tracked since enumeration
NPPES CertifiedNovember 18, 2025
✔ NPI 1558306266 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedFamily MedicineTaxonomy 207Q00000X
Also ListedPediatricsTaxonomy 208000000X
1658 W VALLEY BLVD STE 120, Alhambra, CA 91803
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Secondary Practice Locations 10

Location 1120 W Hellman Ave Ste 202Monterey Park, CA 91754-1209 · Phone (626) 282-0282
Location 23975 Jackson St Ste 309Riverside, CA 92503-3951 · Phone (626) 282-0282
Location 311236 Whittier BlvdWhittier, CA 90606-1436 · Phone (626) 282-0282 · Fax (562) 703-0173
Location 41658 W Valley Blvd Ste 210Alhambra, CA 91803-2370 · Phone (626) 282-0282
Location 5333 S Garfield Ave Ste AAlhambra, CA 91801-3895 · Phone (626) 282-0282 · Fax (626) 289-6599
Location 62707 E Valley Blvd Ste 103West Covina, CA 91792-3196 · Phone (626) 282-0282 · Fax (714) 482-0778
Location 73975 Jackson St Ste 102Riverside, CA 92503-3938 · Phone (626) 282-0282 · Fax (951) 281-1088
Location 8328 S 1st St Ste FAlhambra, CA 91801-3790 · Phone (626) 282-0282 · Fax (626) 282-0939
Location 918575 Gale Ave Ste 295City Of Industry, CA 91748-1383 · Phone (626) 282-0282
Location 10101 Wheeler Ave Unit BArcadia, CA 91006-3216 · Phone (626) 282-0282 · Fax (626) 282-0939

Other Identifiers 1

MedicaidGR0054980CA

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X MULTIPLE SINGLE SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D2313826

Amg A Professional Medical Corporation · Riverside, CA
Active · expires Nov 6, 2026
CLIA Number05D2313826
Laboratory TypePhysician Office
Certificate Effective DateNovember 7, 2024
Certificate Expiration DateNovember 6, 2026
Laboratory DirectorDo T. Luong
Laboratory Phone(626) 222-2185
Laboratory LocationAmg A Professional Medical Corporation3975 Jackson Street, Suite 309, Riverside, CA 92503
CLIA data matches this NPI record on: Address Name
This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

APC-LSMA DESIGNATED SHAREHOLDER MEDICAL CORPORATION
Family Medicine
1658 W VALLEY BLVD STE 120
ALHAMBRA, CA 91803
Los Angeles County (626) 282-0282
PAUL TC LIU MD, INC
Specialist
1658 W VALLEY BLVD STE 120
ALHAMBRA, CA 91803
Los Angeles County (626) 282-0282
DR. GEORGE CHRISTIDES M.D.
Internal Medicine
1658 W VALLEY BLVD STE 120
ALHAMBRA, CA 91803
Los Angeles County (626) 282-0282
MR. JAMES LIN M.D
Family Medicine
1658 W VALLEY BLVD STE 120
ALHAMBRA, CA 91803
Los Angeles County (626) 282-0282

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Amg, A Professional Medical Corporation's NPI number?

The NPI number for Amg, A Professional Medical Corporation is 1558306266. It was assigned to this organization in the NPPES registry on June 17, 2006.

Where is Amg, A Professional Medical Corporation located?

Amg, A Professional Medical Corporation is located at 1658 W Valley Blvd Ste 120, Alhambra, CA 91803. The listed phone number is (626) 282-0282.

What is Amg, A Professional Medical Corporation's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Does Amg, A Professional Medical Corporation hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D2313826) is associated with this NPI, valid through November 6, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Amg, A Professional Medical Corporation was last updated on November 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.