Dr. Ellora Natu Karmarkar, MD
- Part D claims, 2023
- 30
- Publications
- 18
- MIPS score, 2024
- 89
- Hospital affiliations
- 2
- Industry payments
- $15
- Practice address
- 300 Pasteur Drive, Stanford, CA 94305
- Practice phone
- Call (650) 723-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Karmarkar'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. Ellora Natu Karmarkar is an infectious disease specialist in Stanford, California
Dr. Karmarkar practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University.
Dr. Karmarkar's NPI, 1952715518, was assigned on June 11, 2014. Dr. Karmarkar graduated from David Geffen School of Medicine at UCLA in 2014. Dr. Karmarkar holds California license A156669.
- NPI
- 1952715518NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305065970
- NPI enumeration date
- June 11, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (650) 723-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ellora Natu Karmarkar practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California
Dr. Karmarkar's primary practice is Stanford Hospital at 300 Pasteur Drive, at 300 Pasteur Drive, Stanford, CA 94305 in Santa Clara County. The practice phone is (650) 723-4000.
- Stanford Hospital at 300 Pasteur Drive300 Pasteur Drive, Stanford, CA 94305 · Santa Clara CountyPhone(650) 723-4000
Source: Dmand AI Affiliation Data
Dr. Ellora Natu Karmarkar is affiliated with 2 sites of care and 2 medical groups
Dr. Karmarkar's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. The medical group on file is Stanford Health Care. Dmand AI also links Dr. Karmarkar to 1 more hospital and 1 medical group, each named with a free account. Dr. Karmarkar's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ellora Natu Karmarkar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Karmarkar practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stanford Hospital at 300 Pasteur Drive | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ellora Natu Karmarkar is one of 1,054 infectious disease specialists in California
Infectious disease is Dr. Karmarkar's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Karmarkar is board certified in infectious disease by the American Board of Internal Medicine. Dmand AI has Dr. Karmarkar's licenses on file in 3 states: California, Washington and Illinois.
Specialties and state licenses
- Infectious disease, CaliforniaPrimary
- Washington license
- Internal medicine, Illinois
Infectious disease specialists near Dr. Karmarkar
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. Ellora Natu Karmarkar's patients have a median age of 41
Across all payers, Dmand AI patient panel data puts Dr. Karmarkar's median patient age at 41, with 38% women.
Dr. Karmarkar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 41
Patient panel by sex, all payers
- Women38%
- Men62%
Source: Dmand AI Patient Panel Data
Dr. Ellora Natu Karmarkar wrote 30 Medicare Part D claims in 2023
In 2023, Dr. Karmarkar wrote 30 Medicare Part D claims. They cover 2 drugs, with $61,992 in total drug cost. In 2018, CMS named 100 claims across 5 drugs.
Dr. Karmarkar's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2018 to 2023
- 2018
- 2023
- Claims for drugs CMS names
- 2018: 1002023: 3070%
Drugs named by CMS: 2 in 2023, 5 in 2018.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Ellora Natu Karmarkar scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Karmarkar for performance year 2024, reported as part of a group. Dr. Karmarkar accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Karmarkar's MIPS scores, performance year 2024
- 89of 100Final score
- 87.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 70of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Ellora Natu Karmarkar has 18 publications on record
Dmand AI links 18 papers to Dr. Karmarkar, published from 2016 to 2024. 2024 was the busiest year, with 4. The most frequent topics are Mpox, Monkeypox, California and COVID-19. Dr. Karmarkar has published most often in Sex Transm Dis. Dr. Karmarkar's most frequent co-authors are Julia Cook Dombrowski, MD, Matthew Robert Golden, MD and Meena Ramchandani, MD.
Dr. Karmarkar's papers by year, 2016 to 2024
Topics Dr. Karmarkar writes about most
- Mpox, Monkeypox
- California
- COVID-19
- Ambulatory Care Facilities
- Disease Outbreaks
- Sexual Health
- Skilled Nursing Facilities
- Washington
Dr. Karmarkar's most frequent co-authors
- Julia Cook Dombrowski, MD4 shared papers
- Matthew Robert Golden, MD4 shared papers
- Meena Ramchandani, MD4 shared papers
Recent publications by Dr. Karmarkar
Sex Transm Dis
Sex Transm Dis
J Am Geriatr Soc
See who Dr. Karmarkar researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Karmarkar 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. Ellora Natu Karmarkar received $15 in industry payments in 2018
CMS Open Payments shows 1 general payment to Dr. Karmarkar from 1 drug or device company in 2018. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $15.
Companies that paid Dr. Karmarkar the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ellora Natu Karmarkar graduated from David Geffen School of Medicine at UCLA
Dr. Karmarkar graduated from David Geffen School of Medicine at UCLA in 2014.
- Medical school
- Board certified in infectious disease
- Board certified in internal medicine
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. Ellora Natu Karmarkar accepts plans from 3 insurance carriers
Dr. Karmarkar is in network with 3 carriers, including Aetna, Blue Cross Blue Shield of Michigan and CMS Medicare. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- CMS Medicare
Plan types Dr. Karmarkar accepts, by number of carriers
- HMO2
- Medicare2
- POS2
- EPO1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Ellora Natu Karmarkar'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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)Clinician Public Reporting: Overall MIPS Performance (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. Ellora Natu Karmarkar
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. Ellora Natu Karmarkar's NPI number?
Dr. Ellora Natu Karmarkar's NPI number is 1952715518. It was assigned on June 11, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Ellora Natu Karmarkar?
Dr. Ellora Natu Karmarkar is an infectious disease specialist in Stanford, California. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. Ellora Natu Karmarkar practice?
Dr. Karmarkar practices at 300 Pasteur Drive, Stanford, CA 94305. Dr. Karmarkar's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dmand AI also links Dr. Karmarkar to 1 hospital and 1 medical group.
What is Dr. Ellora Natu Karmarkar's office phone number?
The practice phone on file for Dr. Karmarkar is (650) 723-4000.
What is Dr. Ellora Natu Karmarkar's medical license number?
Dr. Karmarkar holds California license A156669, one of the licenses on file in 3 states.
Which states has Dr. Ellora Natu Karmarkar been licensed in?
Dmand AI has state licenses on file for Dr. Karmarkar in California (2018 to 2026), Washington (2021 to 2024) and Illinois (2017 to 2018).
Which hospitals is Dr. Ellora Natu Karmarkar affiliated with?
Dr. Karmarkar practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California. Dmand AI links Dr. Karmarkar to 1 more hospital.
What medical group is Dr. Ellora Natu Karmarkar part of?
Dr. Karmarkar is linked to Stanford Health Care. Dmand AI links Dr. Karmarkar to 1 more medical group.
Does Dr. Ellora Natu Karmarkar accept Medicare?
Yes. CMS lists Dr. Karmarkar as accepting Medicare assignment.
What is Dr. Ellora Natu Karmarkar's MIPS score?
Dr. Karmarkar's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
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Is Dr. Ellora Natu Karmarkar board certified?
Yes. Dr. Karmarkar is board certified in infectious disease by the American Board of Internal Medicine.
Where did Dr. Ellora Natu Karmarkar go to medical school?
Dr. Karmarkar graduated from David Geffen School of Medicine at UCLA in 2014.
What drugs does Dr. Ellora Natu Karmarkar prescribe most?
In 2023 Medicare Part D data, Dr. Karmarkar's most prescribed drugs by claims were Descovy and Tivicay.
Has Dr. Ellora Natu Karmarkar received payments from drug or device companies?
CMS Open Payments shows $15 in general payments to Dr. Karmarkar from 1 company from 2018 to 2018. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Ellora Natu Karmarkar been practicing?
Dr. Karmarkar graduated from medical school in 2014, 12 years ago.
Does Dr. Ellora Natu Karmarkar do research?
Dmand AI links 18 publications to Dr. Karmarkar, published from 2016 to 2024.
Who does Dr. Ellora Natu Karmarkar publish with?
Dr. Karmarkar's most frequent co-authors are Julia Cook Dombrowski, MD (4 shared papers), Matthew Robert Golden, MD (4 shared papers) and Meena Ramchandani, MD (4 shared papers).
What insurance does Dr. Ellora Natu Karmarkar accept?
Dr. Karmarkar is in network with 3 carriers, including Aetna, Blue Cross Blue Shield of Michigan and CMS Medicare. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
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