Quick answers
- Does Lillie E. O'Steen accept Medicare assignment?
- Yes. Medicare's clinician data says Lillie E. O'Steen 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 Lillie E. O'Steen see?
- In 2024, CMS data shows 349 Original Medicare patients and 1,890 services for Lillie E. O'Steen. This counts Original Medicare only and measures volume, not quality.
- What is Lillie E. O'Steen's NPI number?
- 1942680707. 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 Lillie E. O'Steen, 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 patients | 349 |
|---|---|
| Services billed to Medicare | 1,890 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Ct guidance for insertion of radiation therapy fields (77014)718 services
- Calculation of radiation therapy dose (77300)275 services
- Design and construction of complex radiation treatment device (77334)194 services
- Radiation treatment management, 5 treatment sessions (77427)175 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)113 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 disease48%
- Arthritis45%
- Diabetes32%
Hospitals where Lillie E. O'Steen works
Medicare's Facility Affiliation Data lists Lillie E. O'Steen 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.
- Baptist Health Medical Center - JacksonvilleJacksonville, FL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 100088
- Baptist Medical Center - NassauFernandina Beach, FL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 100140
- Baptist Medical Center BeachesJacksonville Beach, FL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 100117
Practice locations
Addresses where Lillie E. O'Steen is enrolled with Medicare (CMS data updated October 2, 2026).
- 1301 Palm AveJacksonville, FL 32207 (904) 202‑7300
- 14546 Old Saint Augustine Rd, Suite 104Jacksonville, FL 32258 (904) 202‑7300
Group practices
Medicare enrollment lists Lillie E. O'Steen as a member of this group (CMS data updated October 2, 2026).
- Baptist MD Anderson Cancer Physicians Inc119 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in Jacksonville
Clinicians with the same Medicare primary specialty in Jacksonville, FL — not a recommendation.
Other clinicians in Baptist MD Anderson Cancer Physicians Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Florida College Of Medicine |
| Graduation year | 2015 (11 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1942680707 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians