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Radiation Oncology

Emily M. Tanzler, MD

Works at hospitals in Saint Augustine, FL · Florida

Summary

Dr. Emily M. Tanzler, MD is a radiation oncologist at 2370 Market Dr, Fleming Island, FL 32003. Phone: (904) 264-6201. Accepts Medicare assignment. In 2024, Emily M. Tanzler had 207 Original Medicare patients and 4,634 services. NPI 1285869610. 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.

  • Specialty: Radiation oncologist (Medicare lists Radiation Oncology)
  • Address: 2370 Market Dr, Fleming Island, FL 32003 · Directions (1 more location)
  • Phone: (904) 264‑6201
  • Medicare: Accepts Medicare assignment
  • Hospital: Flagler Hospital
  • Group practice: Cancer Specialists LLC
  • Medical school: University Of Florida College Of Medicine · graduated 2009 (17 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Emily M. Tanzler, 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 Emily M. Tanzler accept Medicare assignment?
Yes. Medicare's clinician data says Emily M. Tanzler 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 Emily M. Tanzler see?
In 2024, CMS data shows 207 Original Medicare patients and 4,634 services for Emily M. Tanzler. This counts Original Medicare only and measures volume, not quality.
What is Emily M. Tanzler's NPI number?
1285869610. 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 Emily M. Tanzler, 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 patients207
Services billed to Medicare4,634
Different services or procedures37
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Ct guidance for insertion of radiation therapy fields (77014)941 services
  2. Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session (G6015)707 services
  3. Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev (G6012)218 services
  4. Continuing radiation therapy consultation per week (77336)217 services
  5. Calculation of radiation therapy dose (77300)211 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%
  • Arthritis43%
  • Ischemic heart disease38%
  • COPD35%

Hospitals where Emily M. Tanzler works

Medicare's Facility Affiliation Data lists Emily M. Tanzler 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 Emily M. Tanzler is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Emily M. Tanzler as a member of this group (CMS data updated October 2, 2026).

  • Cancer Specialists LLC44 clinicians in the group

Specialties

Find other Radiation Oncology doctors in Florida →

Other radiation oncologists in Florida

Clinicians with the same Medicare primary specialty in Florida — not a recommendation.

All radiation oncologists in Florida →

Other clinicians in Cancer Specialists LLC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Florida College Of Medicine
Graduation year2009 (17 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1285869610
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