Dr. Ramanathan Madras Seshadri, MD
- Medicare services, 2024
- 150
- Medicare patients, 2024
- 111
- Part D claims, 2024
- 14
- Hospital affiliations
- 2
- Industry payments
- $3,941
- Practice address
- 100 Reserve Rd, Danbury, CT 06810
- Practice phone
- Call (203) 739-7742
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Nuvance Health Medical Practice CT, Inc.
Danbury, Connecticut
Find Dr. Madras Seshadri'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. Ramanathan Madras Seshadri is a surgical oncologist in Danbury, Connecticut
Dr. Madras Seshadri practices at Nuvance Health Medical Practice CT, Inc. in Danbury, Connecticut.
Dr. Madras Seshadri's NPI, 1891969937, was assigned on April 18, 2008. Dr. Madras Seshadri holds Connecticut license 66791.
- NPI
- 1891969937NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032343868
- NPI enumeration date
- April 18, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (203) 739-7742
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ramanathan Madras Seshadri practices at Nuvance Health Medical Practice CT, Inc. in Danbury, Connecticut
Dr. Madras Seshadri's primary practice is Nuvance Health Medical Practice CT, Inc., at 100 Reserve Rd, Danbury, CT 06810 in Western Ct County. The practice phone is (203) 739-7742.
- Nuvance Health Medical Practice CT, Inc.100 Reserve Rd, Danbury, CT 06810 · Western Ct CountyPhone(203) 739-7742
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ramanathan Madras Seshadri is affiliated with 3 sites of care and 1 medical group
Dr. Madras Seshadri's primary practice is Nuvance Health Medical Practice CT, Inc. in Danbury, Connecticut. Dr. Madras Seshadri is also affiliated with Northwell Danbury Hospital. The medical group on file is Danbury Medical Group. Dmand AI also links Dr. Madras Seshadri to 1 more hospital, named with a free account.
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. Ramanathan Madras Seshadri's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Madras Seshadri practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Nuvance Health Medical Practice CT, Inc. | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ramanathan Madras Seshadri is one of 34 surgical oncologists in Connecticut
Surgical oncology is Dr. Madras Seshadri's primary specialty in the NPI Registry, under taxonomy code 2086X0206X. Dmand AI has Dr. Madras Seshadri's licenses on file in 2 states: Connecticut and North Carolina.
Specialties and state licenses
- Surgical oncology, ConnecticutPrimary
- Surgery, North Carolina
Surgical oncologists near Dr. Madras Seshadri
Counts of surgical 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. Ramanathan Madras Seshadri billed Medicare for 150 services in 2024
CMS data shows 150 Medicare services from Dr. Madras Seshadri across 7 procedure codes in 2024, for 111 Medicare patients. Medicare paid $21,796 for them.
Dr. Madras Seshadri's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1052024: 11812%
- Surgery
- 2023: 252024: 3228%
- Imaging
- 2023: 112024: 0100%
Where Dr. Madras Seshadri's Medicare services took place, 2024
- In an office10570%
- In a facility4530%
Dr. Madras Seshadri compared with the Connecticut median for surgical oncologists, 2024
- Dr. Madras Seshadri
- Connecticut median
- Medicare services
- 150vs 9755% above
- Medicare patients
- 111vs 7548% above
- Part D claims
- 12vs 2857% below
Medians across 30 surgical oncologists in Connecticut with Dmand AI profiles that report each measure.
Dr. Madras Seshadri'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. Madras Seshadri?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Madras Seshadri and other surgical oncologists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ramanathan Madras Seshadri treated 111 Medicare patients in 2024, average age 77
CMS counts 111 Medicare patients who saw Dr. Madras Seshadri in 2024. The largest group is 75 to 84, with 48 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.88, 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. Madras Seshadri's median patient age at 69, with 44% women.
Dr. Madras Seshadri's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Madras Seshadri's Medicare patients by sex, 2024
- Women6054%
- Men5146%
Chronic conditions among Dr. Madras Seshadri's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease46%
- Diabetes45%
- Arthritis39%
- Mood disorders37%
- Anxiety33%
- Chronic kidney disease32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Madras Seshadri's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women44%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ramanathan Madras Seshadri wrote 14 Medicare Part D claims in 2024
In 2024, Dr. Madras Seshadri wrote 14 Medicare Part D claims for 12 patients. 93% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $76 in total drug cost.
Dr. Madras Seshadri's Part D claims by kind of drug, 2024
- Generic13 claims93%
- Brand-name and other1 claims7%
Dr. Madras Seshadri's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
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. Ramanathan Madras Seshadri offers telehealth to Medicare patients
Dr. Madras Seshadri accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Madras Seshadri as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Ramanathan Madras Seshadri received $3,941 in industry payments from 2016 to 2025
CMS Open Payments shows 57 general payments to Dr. Madras Seshadri from 16 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 40% of the total. Intuitive Surgical, Inc. paid the most, $2,245.
General payments to Dr. Madras Seshadri by program year, 2016 to 2025
General payments to Dr. Madras Seshadri by kind, 2016 to 2025
- Food and beverage$1,57040%
- Travel and lodging$1,37235%
- Education$1,00025%
Companies that paid Dr. Madras Seshadri the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Ramanathan Madras Seshadri'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)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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Ramanathan Madras Seshadri
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. Ramanathan Madras Seshadri's NPI number?
Dr. Ramanathan Madras Seshadri's NPI number is 1891969937. It was assigned on April 18, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Ramanathan Madras Seshadri?
Dr. Ramanathan Madras Seshadri is a surgical oncologist in Danbury, Connecticut. The primary specialty in the NPI Registry is Surgical Oncology Physician (taxonomy code 2086X0206X).
Where does Dr. Ramanathan Madras Seshadri practice?
Dr. Madras Seshadri practices at 100 Reserve Rd, Danbury, CT 06810. Dr. Madras Seshadri's primary practice is Nuvance Health Medical Practice CT, Inc. in Danbury, Connecticut. Dmand AI also links Dr. Madras Seshadri to 1 hospital.
What is Dr. Ramanathan Madras Seshadri's office phone number?
The practice phone on file for Dr. Madras Seshadri is (203) 739-7742.
What is Dr. Ramanathan Madras Seshadri's medical license number?
Dr. Madras Seshadri holds Connecticut license 66791, one of the licenses on file in 2 states.
Which states has Dr. Ramanathan Madras Seshadri been licensed in?
Dmand AI has state licenses on file for Dr. Madras Seshadri in Connecticut and North Carolina.
Which hospitals is Dr. Ramanathan Madras Seshadri affiliated with?
Dr. Madras Seshadri is affiliated with Northwell Danbury Hospital. Dmand AI links Dr. Madras Seshadri to 1 more hospital.
What medical group is Dr. Ramanathan Madras Seshadri part of?
Dr. Madras Seshadri is linked to Danbury Medical Group.
Does Dr. Ramanathan Madras Seshadri accept Medicare?
Yes. CMS data shows Dr. Madras Seshadri billed Medicare for 150 services in 2024, and Dr. Madras Seshadri accepts Medicare assignment.
Does Dr. Ramanathan Madras Seshadri offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Madras Seshadri as offering telehealth services.
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How many Medicare patients does Dr. Ramanathan Madras Seshadri see?
CMS counts 111 Medicare patients who saw Dr. Madras Seshadri in 2024, with an average age of 77.
What services does Dr. Ramanathan Madras Seshadri bill to Medicare?
In 2024, Dr. Madras Seshadri's most billed Medicare services were office visit, established patient (99213), hospital inpatient care (99222) and office visit, established patient (99214).
What drugs does Dr. Ramanathan Madras Seshadri prescribe most?
In 2019 Medicare Part D data, Dr. Madras Seshadri's most prescribed drugs by claims were Oxycodone HCl.
Has Dr. Ramanathan Madras Seshadri received payments from drug or device companies?
CMS Open Payments shows $3,941 in general payments to Dr. Madras Seshadri from 16 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Ramanathan Madras Seshadri been practicing?
Dr. Madras Seshadri graduated from medical school in 2002, 24 years ago.
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