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CHAPARRAL MEDICAL GROUP, INC.
NPI 1053650994
Internal Medicine - Gastroenterology in Pomona, CA

Active since February 13, 2013CLIA Certified · 12 labs
1900 ROYALTY DR, SUITE # 205, POMONA, CA 91767(909) 622-1963(909) 622-1995 Get Directions Write a Review

NPPES record last updated: August 28, 2013. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Chaparral Medical Group, Inc. NPPES

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

CHAPARRAL MEDICAL GROUP, INC. (NPI 1053650994) is a healthcare organization registered as a gastroenterology in Pomona, California and active in the NPI registry since February 2013. The organization holds 12 active CLIA laboratory certificates and lists Adrienne Walker, Contracts Manager, as its authorized official.

NPPES Registry Identity

NPI1053650994
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameCHAPARRAL MEDICAL GROUP, INC.
Location Address1900 ROYALTY DR, SUITE # 205Pomona, CA 91767-3032
Mailing Address840 Towne Center DrPomona, CA 91767-5900 · (909) 398-1550 · Fax (909) 398-1573
Phone(909) 622-1963
Fax(909) 622-1995
Organization SubpartNo
Authorized OfficialAdrienne WalkerContracts Manager · (909) 398-1550
Enumeration DateFebruary 13, 2013
Last NPPES UpdateAugust 28, 2013
✔ NPI 1053650994 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 5

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Definition

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.

Also ListedInternal MedicineTaxonomy 207R00000X
Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X
Also ListedInternal Medicine · Clinical Cardiac ElectrophysiologyTaxonomy 207RC0001X
Also ListedInternal Medicine · HepatologyTaxonomy 207RI0008X
1900 ROYALTY DR, Pomona, CA 91767
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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 12

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 05D2304628

Chaparral Medical Group Inc · Bakersfield, CA
Active · expires May 14, 2028
CLIA Number05D2304628
Laboratory TypePhysician Office
Certificate Effective DateMay 15, 2026
Certificate Expiration DateMay 14, 2028
Laboratory DirectorRishi Patel
Laboratory Phone(909) 398-1550
Laboratory LocationChaparral Medical Group Inc4200 Truxtun Ave, Ste 101, Bakersfield, CA 93309
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 05D2340341

Chaparral Medical Group, Inc · Los Angeles, CA
Active · expires Mar 15, 2028
CLIA Number05D2340341
Laboratory TypePhysician Office
Certificate Effective DateMarch 16, 2026
Certificate Expiration DateMarch 15, 2028
Laboratory DirectorSteven D. Hochman
Laboratory Phone(909) 398-1550
Laboratory LocationChaparral Medical Group, Inc1200 Venice Blvd, Ste 200, Los Angeles, CA 90006
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 05D2291731

Chaparral Medical Group Inc · Rancho Cucamonga, CA
Active · expires Oct 15, 2027
CLIA Number05D2291731
Laboratory TypePhysician Office
Certificate Effective DateOctober 16, 2025
Certificate Expiration DateOctober 15, 2027
Laboratory DirectorHaritha Alla
Laboratory Phone(909) 398-1550
Laboratory LocationChaparral Medical Group Inc9140 Haven Ave #112, Rancho Cucamonga, CA 91730
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 05D2167483

Chaparral Medical Group · Pomona, CA
Active · expires Jun 9, 2027
CLIA Number05D2167483
Laboratory TypePhysician Office
Certificate Effective DateJune 10, 2025
Certificate Expiration DateJune 9, 2027
Laboratory DirectorHarish Yalamanchili
Laboratory Phone(909) 398-1550
Laboratory LocationChaparral Medical Group520 E Foothill Boulevard, Suite C, Pomona, CA 91767
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 05D2162782

Chaparral Medical Group · Pomona, CA
Active · expires Feb 27, 2027
CLIA Number05D2162782
Laboratory TypePhysician Office
Certificate Effective DateFebruary 28, 2025
Certificate Expiration DateFebruary 27, 2027
Laboratory DirectorRakesh Sinha
Laboratory Phone(909) 398-1550
Laboratory LocationChaparral Medical Group1940 N Orange Grove, Suite A, Pomona, CA 91767
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 05D2161399

Chaparral Medical Group · Pomona, CA
Active · expires Jan 31, 2027
CLIA Number05D2161399
Laboratory TypePhysician Office
Certificate Effective DateFebruary 1, 2025
Certificate Expiration DateJanuary 31, 2027
Laboratory DirectorEwa Konca
Laboratory Phone(909) 398-1550
Laboratory LocationChaparral Medical Group520 E Foothill Boulevard, Ste A, Pomona, CA 91767
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES 20

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

ROSALIA JAQUELINE ARMAS I
Social Worker (Clinical)
1900 ROYALTY DR
POMONA, CA 91767
Los Angeles County (909) 766-7319
NICHOLAS CHANG
Peer Specialist
1900 ROYALTY DR
POMONA, CA 91767
Los Angeles County (909) 766-7331
K D AHN MD
Internal Medicine
1900 ROYALTY DR, STE 205
POMONA, CA 91767
Los Angeles County (909) 620-0389
WESLEY A CURRY M.D
Emergency Medicine
1900 ROYALTY DR, SUITE 200
POMONA, CA 91767
Los Angeles County (909) 865-5168
MR. HAIYING THIEN
Marriage & Family Therapist
1900 ROYALTY DR
POMONA, CA 91767
Los Angeles County (657) 666-0656
ROYALTY NEPHROLOGY MEDICAL GROUP, INC.
Internal Medicine (Nephrology)
1900 ROYALTY DR, SUITE 130
POMONA, CA 91767
Los Angeles County (909) 623-1561
STELLA RUVALCABA
Social Worker (Clinical)
1900 ROYALTY DR
POMONA, CA 91767
Los Angeles County (909) 623-6131
GABRIELA STEPHANIE CRUZ
Day Training/Habilitation Specialist
1900 ROYALTY DR
POMONA, CA 91767
Los Angeles County (909) 326-4629

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 Chaparral Medical Group, Inc.'s NPI number?

The NPI number for Chaparral Medical Group, Inc. is 1053650994. It was assigned to this organization in the NPPES registry on February 13, 2013.

Where is Chaparral Medical Group, Inc. located?

Chaparral Medical Group, Inc. is located at 1900 Royalty Dr Suite # 205, Pomona, CA 91767. The listed phone number is (909) 622-1963.

What is Chaparral Medical Group, Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Does Chaparral Medical Group, Inc. hold CLIA laboratory certificates?

Yes. 12 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

When was this NPI record last updated?

The NPPES record for Chaparral Medical Group, Inc. was last updated on August 28, 2013. NPI Profile syncs with the weekly NPPES data releases published by CMS.