Clin Infect Dis
Ecthyma, ContagiousOccupational ExposureResearch Personnel
Dr. Kalpana Natrajan, MD
NPI1770686834PAC ID7113944455
- Medicare services, 2024
- 2,980
- Medicare patients, 2024
- 95
- Part D claims, 2022
- 11
- Publications
- 1
- Hospital affiliations
- 2
- Practice address
- 200 W Arbor Dr, San Diego, CA 92103
- Practice phone
- Call (619) 543-6222
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UCSD Hillcrest Medical Center
San Diego, California
Find Dr. Natrajan's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Kalpana Natrajan is an infectious disease specialist in San Diego, California
Dr. Natrajan practices at UCSD Hillcrest Medical Center in San Diego, California.
Dr. Natrajan's NPI, 1770686834, was assigned on September 6, 2006. Dr. Natrajan graduated from Drexel University College Of Medicine in 1998. Dr. Natrajan holds California license A90413.
NPI and contact details
- NPI
- 1770686834NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7113944455
- NPI enumeration date
- September 6, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 543-6222
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Kalpana Natrajan practices at UCSD Hillcrest Medical Center in San Diego, California
Dr. Natrajan's primary practice is UCSD Hillcrest Medical Center, at 200 W Arbor Dr, San Diego, CA 92103 in San Diego County. The practice phone is (619) 543-6222.
- UCSD Hillcrest Medical Center200 W Arbor Dr, San Diego, CA 92103 · San Diego CountyPhone(619) 543-6222
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Kalpana Natrajan is affiliated with 3 sites of care and 3 medical groups
Dr. Natrajan's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Dr. Natrajan is also affiliated with Hillcrest Medical Center. The medical group on file is Scripps Clinic Medical Group. Dmand AI also links Dr. Natrajan to 1 more hospital and 2 medical groups, each named with a free account.
UCSD Hillcrest Medical CenterPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Kalpana Natrajan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Natrajan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCSD Hillcrest Medical Center | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Kalpana Natrajan is one of 1,054 infectious disease specialists in California
Infectious disease is Dr. Natrajan's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Natrajan is board certified in infectious disease by the American Board of Internal Medicine. Dmand AI has Dr. Natrajan's licenses on file in 2 states: California and Arizona.
Specialties and state licenses
- Infectious disease, CaliforniaPrimary
- Arizona license
Infectious disease specialists near Dr. Natrajan
Counts of infectious disease specialists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Kalpana Natrajan billed Medicare for 2,980 services in 2024
CMS data shows 2,980 Medicare services from Dr. Natrajan across 3 procedure codes in 2024, for 95 Medicare patients. Medicare paid $227,525 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 20242,980
Medicare patients95
Paid by Medicare$227,525
Procedure codes3
Dr. Natrajan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2,7982024: 2,9807%
Dr. Natrajan compared with the California median for infectious disease specialists, 2024
- Dr. Natrajan
- California median
- Medicare services
- 2,980vs 4296.9 times
- Medicare patients
- 95vs 18047% below
- Part D claims
- 11vs 11991% below
Medians across 930 infectious disease specialists in California with Dmand AI profiles that report each measure.
Dr. Natrajan's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Natrajan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Natrajan and other infectious disease specialists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Kalpana Natrajan treated 95 Medicare patients in 2024, average age 71
CMS counts 95 Medicare patients who saw Dr. Natrajan in 2024. The largest group is 65 to 74, with 41 patients. 75% of them have heart failure, and 75% have high blood pressure. 69% are also on Medicaid. Their average risk score is 5.80, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Natrajan's median patient age at 55, with 49% women.
Medicare patients, 202495
Average age71
Average risk score5.80
Also on Medicaid69%
Dr. Natrajan's Medicare patients by age, 2024
Dr. Natrajan's Medicare patients by sex, 2024
- Women4446%
- Men5154%
Chronic conditions among Dr. Natrajan's Medicare patients, 2024
- Heart failure75%
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease69%
- Diabetes68%
- Mood disorders68%
- Ischemic heart disease65%
- Anxiety61%
Share of Medicare patients with each condition. A patient can have several.
Dr. Natrajan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Kalpana Natrajan wrote 11 Medicare Part D claims in 2022
In 2022, Dr. Natrajan wrote 11 Medicare Part D claims. They cover 1 drug, with $558 in total drug cost.
Part D claims, 202211
Drugs named by CMS1
Total drug cost$558
Dr. Natrajan's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Kalpana Natrajan takes part in Medicare
Dr. Natrajan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
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Dr. Kalpana Natrajan has 1 publication on record
Dmand AI links 1 paper to Dr. Natrajan.
Papers1
Recent publications by Dr. Natrajan
See who Dr. Natrajan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Natrajan works with, so you can find a warm path to the right infectious disease specialists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Kalpana Natrajan received $200 in industry payments from 2016 to 2024
CMS Open Payments shows 6 general payments to Dr. Natrajan from 5 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $119.
General payments to Dr. Natrajan by program year, 2016 to 2024
Companies that paid Dr. Natrajan the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Kalpana Natrajan graduated from Drexel University College Of Medicine
Dr. Natrajan graduated from Drexel University College Of Medicine in 1998.
- Medical school
- Board certified in infectious disease
Source: Dmand AI Professional Profile Data
Dr. Kalpana Natrajan accepts plans from 2 insurance carriers
Dr. Natrajan is in network with 2 carriers, including Aetna and CMS Medicare. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Aetna
- CMS Medicare
Plan types Dr. Natrajan accepts, by number of carriers
- Medicare2
- HMO1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Kalpana Natrajan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Kalpana Natrajan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Kalpana Natrajan's NPI number?
Dr. Kalpana Natrajan's NPI number is 1770686834. It was assigned on September 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Kalpana Natrajan?
Dr. Kalpana Natrajan is an infectious disease specialist in San Diego, California. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. Kalpana Natrajan practice?
Dr. Natrajan practices at 200 W Arbor Dr, San Diego, CA 92103. Dr. Natrajan's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Dmand AI also links Dr. Natrajan to 1 hospital and 2 medical groups.
What is Dr. Kalpana Natrajan's office phone number?
The practice phone on file for Dr. Natrajan is (619) 543-6222.
What is Dr. Kalpana Natrajan's medical license number?
Dr. Natrajan holds California license A90413, one of the licenses on file in 2 states.
Which states has Dr. Kalpana Natrajan been licensed in?
Dmand AI has state licenses on file for Dr. Natrajan in California (2005 to 2026) and Arizona (2001 to 2007).
Which hospitals is Dr. Kalpana Natrajan affiliated with?
Dr. Natrajan is affiliated with Hillcrest Medical Center. Dmand AI links Dr. Natrajan to 1 more hospital.
What medical group is Dr. Kalpana Natrajan part of?
Dr. Natrajan is linked to Scripps Clinic Medical Group. Dmand AI links Dr. Natrajan to 2 more medical groups.
Does Dr. Kalpana Natrajan accept Medicare?
Yes. CMS data shows Dr. Natrajan billed Medicare for 2,980 services in 2024, and Dr. Natrajan accepts Medicare assignment.
How many Medicare patients does Dr. Kalpana Natrajan see?
CMS counts 95 Medicare patients who saw Dr. Natrajan in 2024, with an average age of 71.
Show 8 more questionsShow fewer questions
Is Dr. Kalpana Natrajan board certified?
Yes. Dr. Natrajan is board certified in infectious disease by the American Board of Internal Medicine.
What services does Dr. Kalpana Natrajan bill to Medicare?
In 2024, Dr. Natrajan's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99223).
Where did Dr. Kalpana Natrajan go to medical school?
Dr. Natrajan graduated from Drexel University College Of Medicine in 1998.
What drugs does Dr. Kalpana Natrajan prescribe most?
In 2022 Medicare Part D data, Dr. Natrajan's most prescribed drugs by claims were Synthroid.
Has Dr. Kalpana Natrajan received payments from drug or device companies?
CMS Open Payments shows $200 in general payments to Dr. Natrajan from 5 companies from 2016 to 2024. The largest total came from Allergan Inc.
How long has Dr. Kalpana Natrajan been practicing?
Dr. Natrajan graduated from medical school in 1998, 28 years ago.
Does Dr. Kalpana Natrajan do research?
Dmand AI links 1 publication to Dr. Natrajan.
What insurance does Dr. Kalpana Natrajan accept?
Dr. Natrajan is in network with 2 carriers, including Aetna and CMS Medicare. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
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