Regional Radiotherapy in Biomarker Low-Risk Node Positive and T3N0 Breast Cancer (opens in a new tab)
RecruitingPhase 3
Breast NeoplasmsBreast DiseasesRadiation
Dr. Santosh V. Yajnik, MD
NPI1083605067PAC ID6103899505
- Medicare services, 2024
- 959
- Medicare patients, 2024
- 134
- Part D claims, 2024
- 42
- Publications
- 1
- Clinical trials
- 2
- Practice address
- 836 West Wellington Avenue, Chicago, IL 60657
- Practice phone
- Call (773) 975-1600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Yajnik'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. Santosh V. Yajnik is a radiation oncologist in Chicago, Illinois
Dr. Yajnik practices at Advocate Illinois Masonic Medical Center in Chicago, Illinois, part of Advocate Health.
Dr. Yajnik's NPI, 1083605067, was assigned on October 31, 2005. Dr. Yajnik graduated from University of Chicago, Pritzker School of Medicine in 1999. Dr. Yajnik holds Wisconsin license 82715.
NPI and contact details
- NPI
- 1083605067NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103899505
- NPI enumeration date
- October 31, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (773) 975-1600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Santosh V. Yajnik practices at Advocate Illinois Masonic Medical Center in Chicago, Illinois
Dr. Yajnik's primary practice is Advocate Illinois Masonic Medical Center, at 836 West Wellington Avenue, Chicago, IL 60657 in Cook County. The practice phone is (773) 975-1600.
- Advocate Illinois Masonic Medical Center836 West Wellington Avenue, Chicago, IL 60657 · Cook CountyPhone(773) 975-1600
Source: Dmand AI Affiliation Data
Dr. Santosh V. Yajnik is affiliated with 7 sites of care and 3 medical groups
Dr. Yajnik's primary practice is Advocate Illinois Masonic Medical Center in Chicago, Illinois, part of Advocate Health. Dr. Yajnik is also affiliated with Northwestern Medicine Central DuPage Hospital. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Dr. Yajnik to 4 more hospitals, 2 medical groups and 1 group practice or clinic, each named with a free account.
Northwestern Medicine Central DuPage HospitalNorthwestern Medical Faculty Foundation4 hospitalsNames with a free account2 medical groupsNames with a free account1 group practice or clinicName with a free account
See all 10 affiliations for Dr. YajnikSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Santosh V. Yajnik's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Yajnik practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Advocate Illinois Masonic Medical Center | Available with a free account |
| +6 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Yajnik practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across Advocate Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Santosh V. Yajnik is one of 243 radiation oncologists in Illinois
Radiation oncology is Dr. Yajnik's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dmand AI has Dr. Yajnik's licenses on file in 2 states: Wisconsin and Illinois.
Specialties and state licenses
- Radiation oncology, WisconsinPrimary
- Illinois license
Radiation oncologists near Dr. Yajnik
Counts of radiation oncologists with a Dmand AI profile, by place and practice. Each opens the list.
243radiation oncologists in Illinois76radiation oncologists in Chicago4radiation oncologists at Advocate Illinois Masonic Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Santosh V. Yajnik billed Medicare for 959 services in 2024
CMS data shows 959 Medicare services from Dr. Yajnik across 12 procedure codes in 2024, for 134 Medicare patients. Medicare paid $62,808 for them.
Medicare services, 2024959
Medicare patients134
Paid by Medicare$62,808
Procedure codes12
Dr. Yajnik's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 5992024: 83539%
- Office and hospital visits
- 2023: 1372024: 9431%
- Other services
- 2023: 442024: 3032%
Where Dr. Yajnik's Medicare services took place, 2024
- In an office303%
- In a facility92997%
Dr. Yajnik compared with the Illinois median for radiation oncologists, 2024
- Dr. Yajnik
- Illinois median
- Medicare services
- 959vs 1,45934% below
- Medicare patients
- 134vs 17624% below
- Part D claims
- 35vs 34Close to median
Medians across 231 radiation oncologists in Illinois with Dmand AI profiles that report each measure.
Dr. Yajnik'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. Yajnik?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Yajnik and other radiation oncologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Santosh V. Yajnik treated 134 Medicare patients in 2024, average age 73
CMS counts 134 Medicare patients who saw Dr. Yajnik in 2024. The largest group is 65 to 74, with 74 patients. 75% of them have cancer, and 75% have high cholesterol. Their average risk score is 1.60, 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. Yajnik's median patient age at 70, with 35% women.
Medicare patients, 2024134
Average age73
Average risk score1.60
Dr. Yajnik's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Yajnik's Medicare patients by sex, 2024
- Women5037%
- Men8463%
Chronic conditions among Dr. Yajnik's Medicare patients, 2024
- Cancer75%
- High cholesterol75%
- High blood pressure67%
- Arthritis35%
- Diabetes31%
- Ischemic heart disease29%
- Anxiety22%
- Chronic kidney disease22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Yajnik's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women35%
- Men64%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Santosh V. Yajnik wrote 42 Medicare Part D claims in 2024
In 2024, Dr. Yajnik wrote 42 Medicare Part D claims for 22 patients. 98% of them were for generic drugs. CMS names the drug for 35 of them, across 1 drug with 11 or more claims each, at $364 in total drug cost. In 2023, CMS named 35 claims across 1 drug.
Part D claims, 202442
Drugs named by CMS1
Total drug cost$364
Part D patients22
Dr. Yajnik's Part D claims by kind of drug, 2024
- Generic41 claims98%
- Brand-name and other1 claims2%
Dr. Yajnik'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: 352024: 35No change
Drugs named by CMS: 1 in 2024, 1 in 2023.
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. Santosh V. Yajnik scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Yajnik for performance year 2024, reported through an alternative payment model (APM). Dr. Yajnik accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Yajnik as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Yajnik's MIPS scores, performance year 2024
- 95of 100Final score
- 83of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
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
For MedTech and pharma teams
Find radiation oncologists like Dr. Yajnik by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Santosh V. Yajnik has 1 publication on record
Dmand AI links 1 paper to Dr. Yajnik. Dr. Yajnik's most frequent co-authors are Alan C. Hartford, MD, PhD, Minesh P. Mehta, MD and Louis Potters, MD.
Papers1
Dr. Yajnik's most frequent co-authors
- Alan C. Hartford, MD, PhD1 shared paper
- Minesh P. Mehta, MD1 shared paper
- Louis Potters, MD1 shared paper
Recent publications by Dr. Yajnik
See who Dr. Yajnik researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Yajnik works with, so you can find a warm path to the right radiation oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Santosh V. Yajnik has worked on 2 clinical trials
Dmand AI links Dr. Yajnik to 2 clinical trials. 2 are still active or recruiting. Conditions studied include Breast Neoplasms and Breast Diseases.
Conditions in Dr. Yajnik's trials
- Breast Neoplasms
- Breast Diseases
Investigators on the most trials with Dr. Yajnik
- Rachel C. Blitzblau, MD, PhD2 shared trials
- David M. Dubin, MD2 shared trials
- Andrew O. Wahl, MD2 shared trials
Recent clinical trials with Dr. Yajnik
Standard or Comprehensive Radiation Therapy in Treating Patients With Early-Stage Breast Cancer Previously Treated With Chemotherapy and Surgery (opens in a new tab)
Active, not recruiting
Breast NeoplasmsBreast Diseaseschestwall XRTregional nodal XRTWBI
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Santosh V. Yajnik received $550 in industry payments from 2017 to 2025
CMS Open Payments shows 6 general payments to Dr. Yajnik from 4 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Focal Therapeutics, Inc. paid the most, $227.
General payments to Dr. Yajnik by program year, 2017 to 2025
Companies that paid Dr. Yajnik the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Santosh V. Yajnik graduated from University of Chicago, Pritzker School of Medicine
Dr. Yajnik graduated from University of Chicago, Pritzker School of Medicine in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Santosh V. Yajnik'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 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)Medicare Part D Prescribers - by Provider (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 |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Santosh V. Yajnik
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. Santosh V. Yajnik's NPI number?
Dr. Santosh V. Yajnik's NPI number is 1083605067. It was assigned on October 31, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Santosh V. Yajnik?
Dr. Santosh V. Yajnik is a radiation oncologist in Chicago, Illinois. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Santosh V. Yajnik practice?
Dr. Yajnik practices at 836 West Wellington Avenue, Chicago, IL 60657. Dr. Yajnik's primary practice is Advocate Illinois Masonic Medical Center in Chicago, Illinois, part of Advocate Health. Dmand AI also links Dr. Yajnik to 4 hospitals, 2 medical groups and 1 group practice or clinic.
What is Dr. Santosh V. Yajnik's office phone number?
The practice phone on file for Dr. Yajnik is (773) 975-1600.
What is Dr. Santosh V. Yajnik's medical license number?
Dr. Yajnik holds Wisconsin license 82715, one of the licenses on file in 2 states.
Which states has Dr. Santosh V. Yajnik been licensed in?
Dmand AI has state licenses on file for Dr. Yajnik in Wisconsin and Illinois.
Which hospitals is Dr. Santosh V. Yajnik affiliated with?
Dr. Yajnik practices at Advocate Illinois Masonic Medical Center in Chicago, Illinois. Dr. Yajnik is also affiliated with Northwestern Medicine Central DuPage Hospital. Dmand AI links Dr. Yajnik to 4 more hospitals.
What medical group is Dr. Santosh V. Yajnik part of?
Dr. Yajnik is linked to Northwestern Medical Faculty Foundation. Dmand AI links Dr. Yajnik to 2 more medical groups.
Does Dr. Santosh V. Yajnik accept Medicare?
Yes. CMS data shows Dr. Yajnik billed Medicare for 959 services in 2024, and Dr. Yajnik accepts Medicare assignment.
Does Dr. Santosh V. Yajnik offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Yajnik as offering telehealth services.
Show 9 more questionsShow fewer questions
What is Dr. Santosh V. Yajnik's MIPS score?
Dr. Yajnik's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Santosh V. Yajnik see?
CMS counts 134 Medicare patients who saw Dr. Yajnik in 2024, with an average age of 73.
What services does Dr. Santosh V. Yajnik bill to Medicare?
In 2024, Dr. Yajnik's most billed Medicare services were radiation oncology (77014), radiation oncology (77427) and radiation oncology (77300).
Where did Dr. Santosh V. Yajnik go to medical school?
Dr. Yajnik graduated from University of Chicago, Pritzker School of Medicine in 1999.
What drugs does Dr. Santosh V. Yajnik prescribe most?
In 2024 Medicare Part D data, Dr. Yajnik's most prescribed drugs by claims were Tamsulosin HCl.
Has Dr. Santosh V. Yajnik received payments from drug or device companies?
CMS Open Payments shows $550 in general payments to Dr. Yajnik from 4 companies from 2017 to 2025. The largest total came from Focal Therapeutics, Inc.
How long has Dr. Santosh V. Yajnik been practicing?
Dr. Yajnik graduated from medical school in 1999, 27 years ago.
Does Dr. Santosh V. Yajnik do research?
Dmand AI links 1 publication to Dr. Yajnik. Dr. Yajnik has worked on 2 clinical trials.
Who does Dr. Santosh V. Yajnik publish with?
Dr. Yajnik's most frequent co-authors are Alan C. Hartford, MD, PhD (1 shared paper), Minesh P. Mehta, MD (1 shared paper) and Louis Potters, MD (1 shared paper).
Selling to radiation oncology practices?
See radiation oncologists in Illinois by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card