Kalpana Natrajan, M.D.
Infectious Disease Physician · San Diego, CA
Kalpana Natrajan, M.D. is an infectious disease physician with a practice address in San Diego, California, and NPI 1770686834, issued on Sep 6, 2006. Check the license (California A90413, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kalpana Natrajan
- Credential
- M.D.
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- A90413 CA
Self-reported in NPPES; status is on the state search - Practice location
- 555 Washington St, San Diego, CA 92103
- Phone
- (619) 260-8300
- Enumerated
- Sep 6, 2006
- Record last updated
- Dec 3, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (619) 260-1268
- Medicare enrollment
- Enrolled (PECOS I20051026000978); accepts Medicare assignment
- Medical or professional school
- Hahnemann University College Of Medicine, 1998
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 1,119 in California → Look up another NPI →
Also registered at 555 Washington St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Malia Appling, RDNRegistered Dietitian1417776576
- Bridget ArbizoNurse's Aide1720834146
- Noel BenitezRegistered Respiratory Therapist1881420453
- Ma Esther Jane Broeckel, RCP,RRTGeneral Care Registered Respiratory Therapist1750227187
- Antoinette Busalacchi, PA-CPhysician Assistant1518302124
- Cameron Cassidy, RRTRegistered Respiratory Therapist1225725922
Verify Kalpana Natrajan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A90413Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $24.93
1 payment: food and beverage; the largest payer was Shionogi Inc. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Kalpana Natrajan MD IncSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kalpana Natrajan among 1,119 infectious disease physician records in California
Kalpana Natrajan, M.D. is one of 1,119 infectious disease physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 54% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1998 · median 2003 among the 735 with a school on file
- Record last updated2018 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in California
There are 1,119 infectious disease physician records in California.
All 1,119 in California → Every provider in San Diego → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Saima Aslam, M.D.San Diego, CA 921031477565257
- Constance Benson, M.D.San Diego, CA 921031871541664
- Ajay Bharti, MDSan Diego, CA 921031902954910
- Sara Browne, M.DSan Diego, CA 921031275571176
- Joshua Fierer, M.D.San Diego, CA 921031871525584
- Theodoros Katsivas, MDSan Diego, CA 921031679526164
- William Mathews, M.D.San Diego, CA 921031194773259
- David Pride, MD, PHDSan Diego, CA 921031194875526
Common questions
What is Kalpana Natrajan, M.D.'s NPI number?
Kalpana Natrajan, M.D.'s National Provider Identifier (NPI) is 1770686834, issued on Sep 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kalpana Natrajan, M.D. located?
The NPPES record lists a practice address at 555 Washington St, San Diego, CA, 92103. Phone: (619) 260-8300. Providers update this record themselves, so call before visiting.
How can I verify Kalpana Natrajan, M.D.'s license?
NPPES lists California license number A90413, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.