Dr. Karthik Vikram Giridhar, MD

  • Rochester, MN
  • Medical oncologist
NPI1962778183PAC ID0941512230
Medicare services, 2024
48,892
Medicare patients, 2024
470
Part D claims, 2024
274
Publications
45
Clinical trials
4
Practice address
200 First Street SW, Rochester, MN 55905
Practice phone
Call (507) 284-5968
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Mayo Clinic Breast Diagnostic Clinic

Mammography / Breast Imaging Center · Rochester, Minnesota

See all 5 affiliations

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Dr. Karthik Vikram Giridhar is a medical oncologist in Rochester, Minnesota

Dr. Giridhar practices at Mayo Clinic Breast Diagnostic Clinic in Rochester, Minnesota.

Dr. Giridhar's NPI, 1962778183, was assigned on April 2, 2012. Dr. Giridhar graduated from University of Pittsburgh School of Medicine in 2012. Dr. Giridhar holds Minnesota license 59131.

NPI and contact details
Medicare PAC ID
0941512230
NPI enumeration date
April 2, 2012
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(507) 284-5968
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
40
Medical school graduation
2012

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Karthik Vikram Giridhar practices at Mayo Clinic Breast Diagnostic Clinic in Rochester, Minnesota

Dr. Giridhar's primary practice is Mayo Clinic Breast Diagnostic Clinic, at 200 First Street SW, Rochester, MN 55905. The practice phone is (507) 284-5968.

  • Mayo Clinic Breast Diagnostic Clinic
    200 First Street SW, Rochester, MN 55905Phone(507) 284-5968

Source: Dmand AI Affiliation Data

Dr. Karthik Vikram Giridhar is affiliated with 4 sites of care and 1 medical group

Dr. Giridhar's primary practice is Mayo Clinic Breast Diagnostic Clinic in Rochester, Minnesota. Dr. Giridhar is also affiliated with Mayo Clinic Hospital, Saint Marys Campus. The medical group on file is Mayo Clinic. Dmand AI also links Dr. Giridhar to 1 more clinical lab and 1 hospice, each named with a free account. Dr. Giridhar's employer is on file too: a breast imaging center.

See all 5 affiliations for Dr. Giridhar

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Karthik Vikram Giridhar's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Giridhar practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Mayo Clinic Breast Diagnostic ClinicAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Karthik Vikram Giridhar is one of 122 medical oncologists in Minnesota

Medical oncology is Dr. Giridhar's primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dr. Giridhar is licensed in Minnesota.

Specialties and state licenses

  • Medical oncology, MinnesotaPrimaryLicense 59131 · taxonomy 207RX0202X

Clinical focus

Dmand AI lists breast cancer and lung cancer among the conditions Dr. Giridhar treats.

Medical oncologists near Dr. Giridhar

Counts of medical oncologists 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. Karthik Vikram Giridhar billed Medicare for 48,892 services in 2024

CMS data shows 48,892 Medicare services from Dr. Giridhar across 41 procedure codes in 2024, for 470 Medicare patients. Medicare paid $769,376 for them. Every service was in an office.

Medicare services, 202448,892
Medicare patients470
Paid by Medicare$769,376
Procedure codes41

Dr. Giridhar's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Drugs given in the office
2023: 33,9952024: 46,30536%
Tests and treatments
2023: 1,0192024: 1,37235%
Other services
2023: 2,2512024: 1,07752%
Office and hospital visits
2023: 882024: 13857%
Surgery
2023: 142024: 0100%

Dr. Giridhar compared with the Minnesota median for medical oncologists, 2024

  • Dr. Giridhar
  • Minnesota median
Medicare services
48,892vs 1,28438.1 times
Medicare patients
470vs 24890% above
Part D claims
200vs 196Close to median

Medians across 119 medical oncologists in Minnesota with Dmand AI profiles that report each measure.

Dr. Giridhar'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.

See all procedures by Dr. Giridhar

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Karthik Vikram Giridhar treated 470 Medicare patients in 2024, average age 72

CMS counts 470 Medicare patients who saw Dr. Giridhar in 2024. The largest group is 65 to 74, with 255 patients. 64% of them have high blood pressure, and 60% have high cholesterol. 7% are also on Medicaid. Their average risk score is 2.26, 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. Giridhar's median patient age at 64, with 75% women.

Medicare patients, 2024470
Average age72
Average risk score2.26
Also on Medicaid7%

Dr. Giridhar's Medicare patients by age, 2024

Dr. Giridhar's Medicare patients by sex, 2024

  • Women26657%
  • Men20443%

Chronic conditions among Dr. Giridhar's Medicare patients, 2024

  1. High blood pressure64%
  2. High cholesterol60%
  3. Cancer57%
  4. Arthritis33%
  5. Chronic kidney disease31%
  6. Anxiety24%
  7. Diabetes23%
  8. Ischemic heart disease22%

Share of Medicare patients with each condition. A patient can have several.

Dr. Giridhar's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 64

Patient panel by sex, all payers

  • Women75%
  • Men25%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Karthik Vikram Giridhar wrote 274 Medicare Part D claims in 2024

In 2024, Dr. Giridhar wrote 274 Medicare Part D claims for 79 patients. 80% of them were for generic drugs. CMS names the drug for 200 of them, across 7 drugs with 11 or more claims each, at $444,924 in total drug cost. In 2023, CMS named 168 claims across 6 drugs.

Part D claims, 2024274
Drugs named by CMS7
Total drug cost$444,924
Part D patients79

Dr. Giridhar's Part D claims by kind of drug, 2024

  • Generic219 claims80%
  • Brand-name and other55 claims20%

Dr. Giridhar's most prescribed drugs by claims, 2024

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, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1682024: 20019%

Drugs named by CMS: 7 in 2024, 6 in 2023.

See all prescribing by Dr. Giridhar

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Karthik Vikram Giridhar offers telehealth to Medicare patients

Dr. Giridhar accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Giridhar as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Karthik Vikram Giridhar has 45 publications on record

Dmand AI links 45 papers to Dr. Giridhar, published from 2011 to 2025. 2024 was the busiest year, with 10. The most frequent topics are Breast Neoplasms, Antineoplastic Combined Chemotherapy Protocols and Antineoplastic Agents. Dr. Giridhar has published most often in Breast Cancer Res Treat. Dr. Giridhar's most frequent co-authors are Kathryn Jean Ruddy, MD, MPH, Judy C. Boughey, MD and Tufia Christine Haddad, MD.

Papers45
Years published2011 to 2025

Dr. Giridhar's papers by year, 2016 to 2025

Topics Dr. Giridhar writes about most

  • Breast Neoplasms
  • Antineoplastic Combined Chemotherapy Protocols
  • Antineoplastic Agents
  • Biomarkers, Tumor
  • Breast Neoplasms, Male
  • Receptor, ErbB-2
  • Double-Blind Method
  • Early Detection of Cancer

Dr. Giridhar's most frequent co-authors

Recent publications by Dr. Giridhar

See all 45 publications and co-authors

See who Dr. Giridhar researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Giridhar works with, so you can find a warm path to the right medical oncologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Karthik Vikram Giridhar has worked on 4 clinical trials

Dmand AI links Dr. Giridhar to 4 clinical trials, 2 of them phase 3 studies. 3 are still active or recruiting. Conditions studied include Breast Neoplasms, Breast Diseases and Endometrial Neoplasms. Eli Lilly and Company sponsors the most, 2. Open Payments lists research payments to Dr. Giridhar that name 2 trials.

Conditions in Dr. Giridhar's trials

  • Breast Neoplasms
  • Breast Diseases
  • Endometrial Neoplasms
  • Uterine Neoplasms

Investigators on the most trials with Dr. Giridhar

Recent clinical trials with Dr. Giridhar

Sources: Open Payments (CMS), 2025 data, released July 7, 2026; Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Karthik Vikram Giridhar received $68,535 in industry payments from 2018 to 2025

CMS Open Payments shows 52 general payments to Dr. Giridhar from 8 drug and device companies from 2018 to 2025. Consulting fees make up the largest share, 68% of the total. Novartis Pharmaceuticals Corporation paid the most, $23,827. It also lists 7 research payments totaling $69,898 from 2020 to 2024, naming 2 clinical trials.

General payments to Dr. Giridhar by program year, 2018 to 2025

General payments to Dr. Giridhar by kind, 2018 to 2025

$68.5Kin total
  • Consulting fees$46,44668%
  • Travel and lodging$17,65726%
  • Food and beverage$3,6215%
  • Speaker and faculty fees$8001%
  • Education$120%

Companies that paid Dr. Giridhar the most, 2018 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Giridhar

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Karthik Vikram Giridhar graduated from University of Pittsburgh School of Medicine

Dr. Giridhar graduated from University of Pittsburgh School of Medicine in 2012.

  1. Medical schoolUniversity of Pittsburgh School of Medicine

Source: Dmand AI Professional Profile Data

Dr. Karthik Vikram Giridhar accepts plans from 17 insurance carriers

Dr. Giridhar is in network with 17 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

Plan types Dr. Giridhar accepts, by number of carriers

  1. PPO11
  2. Medicare10
  3. HMO7
  4. POS6
  5. EPO4
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Karthik Vikram Giridhar's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Karthik Vikram Giridhar

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. Karthik Vikram Giridhar's NPI number?

Dr. Karthik Vikram Giridhar's NPI number is 1962778183. It was assigned on April 2, 2012, and it is active in the NPI Registry.

What kind of doctor is Dr. Karthik Vikram Giridhar?

Dr. Karthik Vikram Giridhar is a medical oncologist in Rochester, Minnesota. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).

Where does Dr. Karthik Vikram Giridhar practice?

Dr. Giridhar practices at 200 First Street SW, Rochester, MN 55905. Dr. Giridhar's primary practice is Mayo Clinic Breast Diagnostic Clinic in Rochester, Minnesota. Dmand AI also links Dr. Giridhar to 1 clinical lab and 1 hospice.

What is Dr. Karthik Vikram Giridhar's office phone number?

The practice phone on file for Dr. Giridhar is (507) 284-5968.

What is Dr. Karthik Vikram Giridhar's medical license number?

Dr. Giridhar holds Minnesota license 59131.

Which hospitals is Dr. Karthik Vikram Giridhar affiliated with?

Dr. Giridhar is affiliated with Mayo Clinic Hospital, Saint Marys Campus.

What medical group is Dr. Karthik Vikram Giridhar part of?

Dr. Giridhar is linked to Mayo Clinic.

Does Dr. Karthik Vikram Giridhar accept Medicare?

Yes. CMS data shows Dr. Giridhar billed Medicare for 48,892 services in 2024, and Dr. Giridhar accepts Medicare assignment.

Does Dr. Karthik Vikram Giridhar offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Giridhar as offering telehealth services.

How many Medicare patients does Dr. Karthik Vikram Giridhar see?

CMS counts 470 Medicare patients who saw Dr. Giridhar in 2024, with an average age of 72.

Show 8 more questionsShow fewer questions

What services does Dr. Karthik Vikram Giridhar bill to Medicare?

In 2024, Dr. Giridhar's most billed Medicare services were injected or infused drug (J9271), injected or infused drug (J1453) and injected or infused drug (J9267).

Where did Dr. Karthik Vikram Giridhar go to medical school?

Dr. Giridhar graduated from University of Pittsburgh School of Medicine in 2012.

What drugs does Dr. Karthik Vikram Giridhar prescribe most?

In 2024 Medicare Part D data, Dr. Giridhar's most prescribed drugs by claims were Letrozole, Tamoxifen Citrate and Verzenio.

Has Dr. Karthik Vikram Giridhar received payments from drug or device companies?

CMS Open Payments shows $68,535 in general payments to Dr. Giridhar from 8 companies from 2018 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.

How long has Dr. Karthik Vikram Giridhar been practicing?

Dr. Giridhar graduated from medical school in 2012, 14 years ago.

Does Dr. Karthik Vikram Giridhar do research?

Dmand AI links 45 publications to Dr. Giridhar, published from 2011 to 2025. Dr. Giridhar has worked on 4 clinical trials.

Who does Dr. Karthik Vikram Giridhar publish with?

Dr. Giridhar's most frequent co-authors are Kathryn Jean Ruddy, MD, MPH (14 shared papers), Judy C. Boughey, MD (8 shared papers) and Tufia Christine Haddad, MD (8 shared papers).

What insurance does Dr. Karthik Vikram Giridhar accept?

Dr. Giridhar is in network with 17 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

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