Dr. Siddhartha Padmanabha, MD
- Medicare services, 2024
- 1,092
- Medicare patients, 2024
- 121
- Part D claims, 2024
- 283
- Publications
- 2
- Clinical trials
- 5
- Practice address
- 4200 Houma Blvd, Metairie, LA 70006
- Practice phone
- Call (504) 988-5263
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Padmanabha'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. Siddhartha Padmanabha is a radiation oncologist in Metairie, Louisiana
Dr. Padmanabha practices at East Jefferson General Hospital in Metairie, Louisiana, part of LCMC Health.
Dr. Padmanabha's NPI, 1154505220, was assigned on December 24, 2007. Dr. Padmanabha graduated from UCSF School of Medicine in 2002. Dr. Padmanabha's Louisiana license number on file is MD.202408.
- NPI
- 1154505220NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4284702515
- NPI enumeration date
- December 24, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (504) 988-5263
- 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 Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Siddhartha Padmanabha practices at East Jefferson General Hospital in Metairie, Louisiana
Dr. Padmanabha's primary practice is East Jefferson General Hospital, at 4200 Houma Blvd, Metairie, LA 70006 in Jefferson Parish. The practice phone is (504) 988-5263.
- East Jefferson General Hospital4200 Houma Blvd, Metairie, LA 70006 · Jefferson ParishPhone(504) 988-5263
Source: Dmand AI Affiliation Data
Dr. Siddhartha Padmanabha is affiliated with 4 sites of care and 1 medical group
Dr. Padmanabha's primary practice is East Jefferson General Hospital in Metairie, Louisiana, part of LCMC Health. Dr. Padmanabha is also affiliated with Ochsner Medical Center - New Orleans. The medical group on file is East Jefferson Physicians Group. Dmand AI also links Dr. Padmanabha to 1 more hospital and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Siddhartha Padmanabha's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Padmanabha practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| East Jefferson General Hospital | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across LCMC Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Siddhartha Padmanabha is one of 51 radiation oncologists in Louisiana
Radiation oncology is Dr. Padmanabha's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Padmanabha is board certified in radiation oncology by the American Board of Radiology. Dmand AI has Dr. Padmanabha's licenses on file in 3 states: Louisiana, California and Connecticut.
Specialties and state licenses
- Radiation oncology, LouisianaPrimary
- California license
- Connecticut license
Clinical focus
Dmand AI lists bladder cancer radiation, bone cancer radiation, brain cancer radiation, breast cancer radiation, cervical cancer radiation, colorectal cancer radiation, head & neck cancer radiation and lung cancer radiation among the conditions Dr. Padmanabha treats.
Radiation oncologists near Dr. Padmanabha
Counts of radiation 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. Siddhartha Padmanabha billed Medicare for 1,092 services in 2024
CMS data shows 1,092 Medicare services from Dr. Padmanabha across 13 procedure codes in 2024, for 121 Medicare patients. Medicare paid $72,001 for them.
Dr. Padmanabha's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 1,2752024: 75641%
- Other services
- 2023: 02024: 231
- Office and hospital visits
- 2023: 682024: 10554%
Where Dr. Padmanabha's Medicare services took place, 2024
- In an office35733%
- In a facility73567%
Dr. Padmanabha compared with the Louisiana median for radiation oncologists, 2024
- Dr. Padmanabha
- Louisiana median
- Medicare services
- 1,092vs 1,72437% below
- Medicare patients
- 121vs 17029% below
- Part D claims
- 162vs 9080% above
Medians across 56 radiation oncologists in Louisiana with Dmand AI profiles that report each measure.
Dr. Padmanabha'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. Padmanabha?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Padmanabha and other radiation oncologists in Louisiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Siddhartha Padmanabha treated 121 Medicare patients in 2024, average age 74
CMS counts 121 Medicare patients who saw Dr. Padmanabha in 2024. The largest group is 65 to 74, with 62 patients. 75% of them have cancer, and 75% have high blood pressure. Their average risk score is 1.95, 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. Padmanabha's median patient age at 75, with 31% women.
Dr. Padmanabha's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Padmanabha's Medicare patients by sex, 2024
- Women4134%
- Men8066%
Chronic conditions among Dr. Padmanabha's Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease42%
- Arthritis40%
- Diabetes38%
- COPD30%
- Chronic kidney disease28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Padmanabha's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women31%
- Men69%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Siddhartha Padmanabha wrote 283 Medicare Part D claims in 2024
In 2024, Dr. Padmanabha wrote 283 Medicare Part D claims for 120 patients. 98% of them were for generic drugs. CMS names the drug for 162 of them, across 7 drugs with 11 or more claims each, at $1,877 in total drug cost. In 2023, CMS named 176 claims across 7 drugs.
Dr. Padmanabha's Part D claims by kind of drug, 2024
- Generic278 claims98%
- Brand-name and other5 claims2%
Dr. Padmanabha'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.
Drug classes CMS tracks in Dr. Padmanabha's Part D claims, 2024
- Opioids20%57 of 283 claims
- Antibiotics14%39 of 283 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1762024: 1628%
Drugs named by CMS: 7 in 2024, 7 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
How Dr. Siddhartha Padmanabha takes part in Medicare
Dr. Padmanabha 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)
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Dr. Siddhartha Padmanabha has 2 publications on record
Dmand AI links 2 papers to Dr. Padmanabha in 2015. Dr. Padmanabha's most frequent co-author is Roy Samuel Weiner, MD.
Dr. Padmanabha's most frequent co-authors
Recent publications by Dr. Padmanabha
See who Dr. Padmanabha researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Padmanabha 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. Siddhartha Padmanabha has worked on 5 clinical trials
Dmand AI links Dr. Padmanabha to 5 clinical trials, 3 of them phase 3 studies. 4 are still active or recruiting. Conditions studied include Hypopharyngeal Neoplasms, Oropharyngeal Neoplasms and Prostatic Neoplasms. National Cancer Institute (NCI) sponsors the most, 3.
Clinical trials with Dr. Padmanabha by phase
- NonePhase 1: no trials
- NonePhase 2: no trials
- 2Phase 2/3: 2 trials
- 3Phase 3: 3 trials
- NonePhase 4: no trials
Conditions in Dr. Padmanabha's trials
- Hypopharyngeal Neoplasms
- Oropharyngeal Neoplasms
- Prostatic Neoplasms
- Urinary Bladder Neoplasms
- Laryngeal Neoplasms
Investigators on the most trials with Dr. Padmanabha
- Matthew David Cheney, MD, PhD3 shared trials
- Samir Narayan, MD3 shared trials
- Robert S. Alter, MD2 shared trials
Recent clinical trials with Dr. Padmanabha
De-intensified Radiation Therapy With Chemotherapy (Cisplatin) or Immunotherapy (Nivolumab) in Treating Patients With Early-Stage, HPV-Positive, Non-Smoking Associated Oropharyngeal Cancer (opens in a new tab)
Chemoradiotherapy With or Without Atezolizumab in Treating Patients With Localized Muscle Invasive Bladder Cancer (opens in a new tab)
Standard Systemic Therapy With or Without Definitive Treatment in Treating Participants With Metastatic Prostate Cancer (opens in a new tab)
Stereotactic Body Radiation Therapy or Intensity-Modulated Radiation Therapy in Treating Patients With Stage IIA-B Prostate Cancer (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Siddhartha Padmanabha received $1,533 in industry payments from 2016 to 2025
CMS Open Payments shows 38 general payments to Dr. Padmanabha from 19 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. INSYS Therapeutics Inc paid the most, $283.
General payments to Dr. Padmanabha by program year, 2016 to 2025
Companies that paid Dr. Padmanabha the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Siddhartha Padmanabha graduated from UCSF School of Medicine
Dr. Padmanabha graduated from UCSF School of Medicine in 2002.
- Medical school
- Board certified in radiation oncology
Source: Dmand AI Professional Profile Data
Dr. Siddhartha Padmanabha accepts plans from 17 insurance carriers
Dr. Padmanabha is in network with 17 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
- Elevance
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Aspirus Health Plan
- Blue Cross Blue Shield of Massachusetts
- Humana
- +9 more carriersWith a free account
Plan types Dr. Padmanabha accepts, by number of carriers
- PPO11
- Medicare9
- HMO7
- POS6
- EPO4
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Siddhartha Padmanabha'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) |
| 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 |
| 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. Siddhartha Padmanabha
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. Siddhartha Padmanabha's NPI number?
Dr. Siddhartha Padmanabha's NPI number is 1154505220. It was assigned on December 24, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Siddhartha Padmanabha?
Dr. Siddhartha Padmanabha is a radiation oncologist in Metairie, Louisiana. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Siddhartha Padmanabha practice?
Dr. Padmanabha practices at 4200 Houma Blvd, Metairie, LA 70006. Dr. Padmanabha's primary practice is East Jefferson General Hospital in Metairie, Louisiana, part of LCMC Health. Dmand AI also links Dr. Padmanabha to 1 hospital and 1 group practice or clinic.
What is Dr. Siddhartha Padmanabha's office phone number?
The practice phone on file for Dr. Padmanabha is (504) 988-5263.
What is Dr. Siddhartha Padmanabha's medical license number?
Dr. Padmanabha's Louisiana license number on file is MD.202408, one of the licenses on file in 3 states.
Which states has Dr. Siddhartha Padmanabha been licensed in?
Dmand AI has state licenses on file for Dr. Padmanabha in Louisiana (2008 to 2025), California (2007 to 2020) and Connecticut (2007 to 2008).
Which hospitals is Dr. Siddhartha Padmanabha affiliated with?
Dr. Padmanabha practices at East Jefferson General Hospital in Metairie, Louisiana. Dr. Padmanabha is also affiliated with Ochsner Medical Center - New Orleans. Dmand AI links Dr. Padmanabha to 1 more hospital.
What medical group is Dr. Siddhartha Padmanabha part of?
Dr. Padmanabha is linked to East Jefferson Physicians Group.
Does Dr. Siddhartha Padmanabha accept Medicare?
Yes. CMS data shows Dr. Padmanabha billed Medicare for 1,092 services in 2024, and Dr. Padmanabha accepts Medicare assignment.
How many Medicare patients does Dr. Siddhartha Padmanabha see?
CMS counts 121 Medicare patients who saw Dr. Padmanabha in 2024, with an average age of 74.
Show 9 more questionsShow fewer questions
Is Dr. Siddhartha Padmanabha board certified?
Yes. Dr. Padmanabha is board certified in radiation oncology by the American Board of Radiology.
What services does Dr. Siddhartha Padmanabha bill to Medicare?
In 2024, Dr. Padmanabha's most billed Medicare services were medicare service (G6002), radiation oncology (77014) and radiation oncology (77300).
Where did Dr. Siddhartha Padmanabha go to medical school?
Dr. Padmanabha graduated from UCSF School of Medicine in 2002.
What drugs does Dr. Siddhartha Padmanabha prescribe most?
In 2024 Medicare Part D data, Dr. Padmanabha's most prescribed drugs by claims were Tamsulosin HCl, Hydrocodone-Acetaminophen and Cephalexin.
Has Dr. Siddhartha Padmanabha received payments from drug or device companies?
CMS Open Payments shows $1,533 in general payments to Dr. Padmanabha from 19 companies from 2016 to 2025. The largest total came from INSYS Therapeutics Inc.
How long has Dr. Siddhartha Padmanabha been practicing?
Dr. Padmanabha graduated from medical school in 2002, 24 years ago.
Does Dr. Siddhartha Padmanabha do research?
Dmand AI links 2 publications to Dr. Padmanabha. Dr. Padmanabha has worked on 5 clinical trials.
Who does Dr. Siddhartha Padmanabha publish with?
Dr. Padmanabha's most frequent co-authors are Roy Samuel Weiner, MD (1 shared paper).
What insurance does Dr. Siddhartha Padmanabha accept?
Dr. Padmanabha is in network with 17 carriers, including Elevance, Aetna 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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