KALPANA NATRAJAN MD INC
NPI 1477741171
Internal Medicine - Infectious Disease in San Diego, CA
About Kalpana Natrajan Md Inc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KALPANA NATRAJAN MD INC (NPI 1477741171) is a healthcare organization registered as an infectious disease in San Diego, California and active in the NPI registry since October 2007. The organization lists Kalpana Natrajan, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Kalpana Natrajan Md 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 Kalpana Natrajan MD Inc, 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 Kalpana Natrajan MD Inc's NPI number?
The NPI number for Kalpana Natrajan MD Inc is 1477741171. It was assigned to this organization in the NPPES registry on October 9, 2007.
Where is Kalpana Natrajan MD Inc located?
Kalpana Natrajan MD Inc is located at 555 Washington St, San Diego, CA 92103. The listed phone number is (619) 260-8300.
What is Kalpana Natrajan MD Inc's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Kalpana Natrajan MD Inc enrolled in Medicare?
Yes. Kalpana Natrajan MD Inc is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Kalpana Natrajan MD Inc?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Infectious Disease) reassigns their Medicare billing to Kalpana Natrajan MD 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.
When was this NPI record last updated?
The NPPES record for Kalpana Natrajan MD Inc was last updated on December 3, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Kalpana Natrajan Md Inc · NPI 1477741171
Infectious Disease organization in San Diego, California. Organization record, active in the CMS NPPES registry since October 9, 2007.
## Identity
- **NPI:** 1477741171 (Entity type: Organization)
- **Enumerated:** October 9, 2007
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **Organization subpart:** No
- **Authorized official:** Kalpana Natrajan, PRESIDENT
## Practice location
- **Address:** 555 WASHINGTON ST, San Diego, CA 92103-2289
- **Phone:** (619) 260-8300 · **Fax:** (619) 260-1268
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Infectious Disease) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 3, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1477741171) · Data from the CMS NPPES public registry.