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SUBBIAH AND KRISHNAN MEDICAL CORPORATION
NPI 1912784422
Internal Medicine - Hematology & Oncology in Laguna Hills, CA

Active since September 11, 2023
23141 VERDUGO DR STE 201, LAGUNA HILLS, CA 92653(949) 215-5055(949) 326-5099 Get Directions Write a Review

NPPES record last updated: November 15, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Subbiah And Krishnan Medical Corporation NPPES

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

SUBBIAH AND KRISHNAN MEDICAL CORPORATION (NPI 1912784422) is a healthcare organization registered as a hematology & oncology in Laguna Hills, California and active in the NPI registry since September 2023. The organization lists Shanmuga Subbiah, Owner, as its authorized official.

NPPES Registry Identity

NPI1912784422
Entity TypeOrganization
Primary Taxonomy207RH0003X
Legal Business NameSUBBIAH AND KRISHNAN MEDICAL CORPORATION
Location Address23141 VERDUGO DR STE 201Laguna Hills, CA 92653-1341
Mailing Address23141 Verdugo Dr Ste 201Laguna Hills, CA 92653-1341 · (949) 215-5055 · Fax (949) 326-5099
Phone(949) 215-5055
Fax(949) 326-5099
Organization SubpartNo
Authorized OfficialShanmuga SubbiahOwner · (216) 650-7940
Enumeration DateSeptember 11, 2023
Last NPPES UpdateNovember 15, 2023
NPPES CertifiedNovember 15, 2023
✔ NPI 1912784422 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
23141 VERDUGO DR STE 201, Laguna Hills, CA 92653
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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 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)

Subbiah And Krishnan Medical Corporation 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 Subbiah And Krishnan Medical Corporation, which bills Medicare for the services this clinician delivers.

Clinician (1)

Shanmuga Sundaram Pudunagar Subbiah, MD
Hematology/Oncology
NPI 1699968503
1100 SAN BERNARDINO RD STE 1100
Upland, CA 91786
(909) 949-2242
✔ PECOS✔ Accepts Medicare33 mi

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

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 Subbiah And Krishnan Medical Corporation's NPI number?

The NPI number for Subbiah And Krishnan Medical Corporation is 1912784422. It was assigned to this organization in the NPPES registry on September 11, 2023.

Where is Subbiah And Krishnan Medical Corporation located?

Subbiah And Krishnan Medical Corporation is located at 23141 Verdugo Dr Ste 201, Laguna Hills, CA 92653. The listed phone number is (949) 215-5055.

What is Subbiah And Krishnan Medical Corporation's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Subbiah And Krishnan Medical Corporation enrolled in Medicare?

Yes. Subbiah And Krishnan Medical Corporation is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Subbiah And Krishnan Medical Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Hematology/Oncology) reassigns their Medicare billing to Subbiah And Krishnan Medical Corporation. 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.

When was this NPI record last updated?

The NPPES record for Subbiah And Krishnan Medical Corporation was last updated on November 15, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.