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PREFERRED MEDICAL GROUP INC
NPI 1891985289
Internal Medicine in Alhambra, CA

Active since July 31, 2007CLIA 05D0997803 · Waiver
1234 S GARFIELD AVE, STE 103, ALHAMBRA, CA 91801(626) 576-7871(626) 576-7872 Get Directions Write a Review

NPPES record last updated: August 26, 2010. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Preferred Medical Group Inc NPPES

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

PREFERRED MEDICAL GROUP INC (NPI 1891985289) is a healthcare organization registered as an internal medicine in Alhambra, California and active in the NPI registry since July 2007. The organization holds a CLIA Waiver certificate valid through January 8, 2027 and lists Robert Chan, President, as its authorized official.

NPPES Registry Identity

NPI1891985289
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NamePREFERRED MEDICAL GROUP INC
Location Address1234 S GARFIELD AVE, STE 103Alhambra, CA 91801-5065
Mailing Address1234 S Garfield Ave, Ste 103Alhambra, CA 91801-5065 · (626) 576-7871 · Fax (626) 576-7872
Phone(626) 576-7871
Fax(626) 576-7872
Organization SubpartNo
Authorized OfficialRobert ChanPresident · (626) 576-7871
Enumeration DateJuly 31, 2007
Last NPPES UpdateAugust 26, 2010
✔ NPI 1891985289 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ 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.
1234 S GARFIELD AVE, Alhambra, CA 91801
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Other Identifiers 3

Medicaid00A676780CA
Medicare UPINH14784CA
Medicare PINA67678CA

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

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Preferred Medical Group Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Preferred Medical Group Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Robert Chan, MD
Internal Medicine
NPI 1508826488
1234 SOUTH GARFIELD AVENUE SUITE 103
Alhambra, CA 91801
(626) 576-7871
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 05D0997803

Preferred Medical Group Inc · Alhambra, CA
Active · expires Jan 8, 2027
CLIA Number05D0997803
Laboratory TypePhysician Office
Certificate Effective DateJanuary 9, 2025
Certificate Expiration DateJanuary 8, 2027
Laboratory DirectorRobert W. Chan MD
Laboratory Phone(626) 576-7871
Laboratory LocationPreferred Medical Group Inc1234 South Garfield Avenue Suite #103, Alhambra, CA 91801
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Preferred Medical Group Inc's NPI number?

The NPI number for Preferred Medical Group Inc is 1891985289. It was assigned to this organization in the NPPES registry on July 31, 2007.

Where is Preferred Medical Group Inc located?

Preferred Medical Group Inc is located at 1234 S Garfield Ave Ste 103, Alhambra, CA 91801. The listed phone number is (626) 576-7871.

What is Preferred Medical Group Inc's specialty?

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

Is Preferred Medical Group Inc enrolled in Medicare?

Yes. Preferred Medical Group Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Preferred Medical Group Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Preferred Medical Group Inc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Preferred Medical Group Inc hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D0997803) is associated with this NPI, valid through January 8, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Preferred Medical Group Inc was last updated on August 26, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years 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.