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Radiation Oncology

Siddhartha Padmanabha, MD

Works at hospitals in Metairie, LA · New Orleans, LA · Louisiana

Summary

Dr. Siddhartha Padmanabha, MD is a radiation oncologist at 4204 Houma Blvd, Suite 100, Metairie, LA 70006. Phone: (504) 503-5139. Accepts Medicare assignment. In 2024, Siddhartha Padmanabha had 121 Original Medicare patients and 4,666 services. NPI 1154505220. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Siddhartha Padmanabha, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Siddhartha Padmanabha accept Medicare assignment?
Yes. Medicare's clinician data says Siddhartha Padmanabha accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Siddhartha Padmanabha see?
In 2024, CMS data shows 121 Original Medicare patients and 4,666 services for Siddhartha Padmanabha. This counts Original Medicare only and measures volume, not quality.
What is Siddhartha Padmanabha's NPI number?
1154505220. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Siddhartha Padmanabha, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients121
Services billed to Medicare4,666
Different services or procedures38
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)231 services
  2. Ct guidance for insertion of radiation therapy fields (77014)215 services
  3. Calculation of radiation therapy dose (77300)157 services
  4. Radiation treatment management, 5 treatment sessions (77427)109 services
  5. Design and construction of complex radiation treatment device (77334)103 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
  • Ischemic heart disease42%
  • Arthritis40%
  • Diabetes38%

Hospitals where Siddhartha Padmanabha works

Medicare's Facility Affiliation Data lists Siddhartha Padmanabha at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Siddhartha Padmanabha is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Siddhartha Padmanabha as a member of this group (CMS data updated October 2, 2026).

  • East Jefferson Physicians Group LLC214 clinicians in the group

Specialties

Find other Radiation Oncology doctors in Louisiana →

Other radiation oncologists in Metairie

Clinicians with the same Medicare primary specialty in Metairie, LA — not a recommendation.

All radiation oncologists in Metairie →

Other clinicians in East Jefferson Physicians Group LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniversity Of California, San Francisco School Of Medicine
Graduation year2002 (24 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1154505220
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians