CALVIN KIM MD INTERNAL MEDICINE
NPI 1154978831
Clinic/Center - Primary Care in Los Angeles, CA
About Calvin Kim Md Internal Medicine NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CALVIN KIM MD INTERNAL MEDICINE (NPI 1154978831) is a healthcare organization registered as a primary care in Los Angeles, California and active in the NPI registry since August 2019. The organization lists Calvin A Kim, President/ceo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Calvin Kim Md Internal Medicine 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 Calvin Kim MD Internal Medicine, which bills Medicare for the services this clinician delivers.
Clinician (1)
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 Calvin Kim MD Internal Medicine's NPI number?
The NPI number for Calvin Kim MD Internal Medicine is 1154978831. It was assigned to this organization in the NPPES registry on August 19, 2019.
Where is Calvin Kim MD Internal Medicine located?
Calvin Kim MD Internal Medicine is located at 4220 W 3rd St Ste 201, Los Angeles, CA 90020. The listed phone number is (213) 487-4141.
What is Calvin Kim MD Internal Medicine's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Primary Care, with taxonomy code 261QP2300X.
Is Calvin Kim MD Internal Medicine enrolled in Medicare?
Yes. Calvin Kim MD Internal Medicine is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Calvin Kim MD Internal Medicine?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Calvin Kim MD Internal Medicine. 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 Calvin Kim MD Internal Medicine was last updated on March 24, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Calvin Kim Md Internal Medicine · NPI 1154978831
Primary Care organization in Los Angeles, California. Organization record, active in the CMS NPPES registry since August 19, 2019.
## Identity
- **NPI:** 1154978831 (Entity type: Organization)
- **Enumerated:** August 19, 2019
- **Primary specialty:** Clinic/Center - Primary Care · taxonomy 261QP2300X
- **Organization subpart:** No
- **Authorized official:** Calvin Kim, PRESIDENT/CEO
## Practice location
- **Address:** 4220 W 3RD ST STE 201, Los Angeles, CA 90020-3450
- **Phone:** (213) 487-4141 · **Fax:** (213) 487-0124
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Internal Medicine) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 24, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1154978831) · Data from the CMS NPPES public registry.