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UNITED HEART INSTITUTE
NPI 1871394791
Internal Medicine - Cardiovascular Disease in Upland, CA

Active since March 24, 2025CLIA 05D1082390 · Waiver
685 N 13TH AVE, UPLAND, CA 91786(909) 500-8683(909) 931-1294 Get Directions Write a Review

NPPES record last updated: March 25, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 25, 2026, Jan 28, 2026, Sep 3, 2025 and 3 more (6 updates tracked since 2025).

About United Heart Institute NPPES

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

UNITED HEART INSTITUTE (NPI 1871394791) is a healthcare organization registered as a cardiovascular disease in Upland, California and active in the NPI registry since March 2025. The organization holds a CLIA Waiver certificate valid through July 16, 2027, maintains 4 additional practice locations, and lists Samir Samarany, Ceo, as its authorized official.

NPPES Registry Identity

NPI1871394791
Entity TypeOrganization
Primary Taxonomy207RC0000X
Legal Business NameUNITED HEART INSTITUTE
Location Address685 N 13TH AVEUpland, CA 91786-4916
Mailing Address685 N 13th AveUpland, CA 91786-4916 · (909) 500-8683 · Fax (909) 931-1294
Phone(909) 500-8683
Fax(909) 931-1294
Organization SubpartNo
Authorized OfficialSamir SamaranyCeo · (909) 500-8683
Enumeration DateMarch 24, 2025
Last NPPES UpdateMarch 25, 20266 updates tracked since enumeration
NPPES CertifiedMarch 25, 2026
✔ NPI 1871394791 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
685 N 13TH AVE, Upland, CA 91786
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Secondary Practice Locations 4

Location 1685 N 13th Ave Ste 7Upland, CA 91786-4963 · Phone (909) 500-8683 · Fax (909) 931-1294
Location 2685 N 13th Ave Ste 2Upland, CA 91786-4963 · Phone (909) 500-8683 · Fax (909) 931-1294
Location 3685 N 13th Ave Ste 11Upland, CA 91786-4963 · Phone (909) 500-8683 · Fax (909) 931-1294
Location 4685 N 13th Ave Ste 1Upland, CA 91786-4963 · Phone (909) 500-8683 · Fax (909) 931-1294

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-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)

United Heart Institute is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

8

Medicare enrollment records show 8 clinicians reassign Medicare billing to United Heart Institute, which bills Medicare for the services they deliver. Of these, 5 practice at this address and 6 within 10 miles. They are listed nearest first.

Clinicians, nearest first (8)

Byung Ahn, MD
Cardiovascular Disease (Cardiology)
NPI 1194715193
685 N 13TH AVE STE 1
Upland, CA 91786
(909) 500-8683
✔ PECOS✔ Accepts MedicareSame address
Larry Chan, D.O.
Cardiovascular Disease (Cardiology)
NPI 1215259221
685 N 13TH AVE STE 2
Upland, CA 91786
(909) 500-8683
✔ PECOS✔ Accepts MedicareSame address
Shuchi Parikh
Nurse Practitioner
NPI 1255899605
685 N 13TH AVE STE 1
Upland, CA 91786
(909) 500-8683
✔ PECOSSame address
Suraj Rasania, M.D.
Cardiovascular Disease (Cardiology)
NPI 1245501899
685 N 13TH AVE STE 9
Upland, CA 91786
(909) 500-8683
✔ PECOS✔ Accepts MedicareSame address
Angela Grace Villanueva, FNP-C
Nurse Practitioner
NPI 1154121358
685 N 13TH AVE STE 1
Upland, CA 91786
(714) 603-9616
✔ PECOSSame address
Samit Bhatheja, MD
Interventional Cardiology
NPI 1871818385
685 N 13TH AVE STE 11
Upland, CA 91786
(909) 500-8683
✔ PECOS✔ Accepts Medicare1.6 mi
Alexandria Wilson, FNP
Nurse Practitioner
NPI 1104496850
1873 COMMERCENTER W
San Bernardino, CA 92408
(714) 633-6373
✔ PECOS22 mi
Samir Samarany, M.D
Cardiovascular Disease (Cardiology)
NPI 1134379126
5020 COMMERCE DR
Bakersfield, CA 93309
(661) 324-4100
✔ PECOS✔ Accepts Medicare118 mi

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 05D1082390

United Heart Institute · Upland, CA
Active · expires Jul 16, 2027
CLIA Number05D1082390
Laboratory TypePhysician Office
Certificate Effective DateJuly 17, 2025
Certificate Expiration DateJuly 16, 2027
Laboratory DirectorDr. Byung Don Ahn
Laboratory Phone(909) 981-8383
Laboratory LocationUnited Heart Institute685 N 13th Ave, Suite 1, Upland, CA 91786
CLIA data matches this NPI record on: Address Name
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 United Heart Institute's NPI number?

The NPI number for United Heart Institute is 1871394791. It was assigned to this organization in the NPPES registry on March 24, 2025.

Where is United Heart Institute located?

United Heart Institute is located at 685 N 13th Ave, Upland, CA 91786. The listed phone number is (909) 500-8683.

What is United Heart Institute's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is United Heart Institute enrolled in Medicare?

Yes. United Heart Institute is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through United Heart Institute?

According to the CMS Revalidation Reassignment List (October 2026 release), 8 clinicians in 3 Medicare specialties reassign their Medicare billing to United Heart Institute. 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. The largest specialties are Cardiovascular Disease (Cardiology) (4), Nurse Practitioner (3) and Interventional Cardiology (1). Of these, 5 practice at this address and 6 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does United Heart Institute hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D1082390) is associated with this NPI, valid through July 16, 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 United Heart Institute was last updated on March 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.