Quick answers
- Does Vivian D. Griffin accept Medicare assignment?
- Yes. Medicare's clinician data says Vivian D. Griffin 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 Vivian D. Griffin see?
- In 2024, CMS data shows 190 Original Medicare patients and 17,109 services for Vivian D. Griffin. This counts Original Medicare only and measures volume, not quality.
- What is Vivian D. Griffin's NPI number?
- 1801898614. 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 Vivian D. Griffin, 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 | 190 |
|---|---|
| Services billed to Medicare | 17,109 |
| Different services or procedures | 86 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Ct guidance for insertion of radiation therapy fields (77014)698 services
- Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session (G6015)695 services
- Calculation of radiation therapy dose (77300)287 services
- Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev (G6012)261 services
- Continuing radiation therapy consultation per week (77336)225 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)63%
- Arthritis51%
- Ischemic heart disease44%
- Anxiety40%
Hospitals where Vivian D. Griffin works
Medicare's Facility Affiliation Data lists Vivian D. Griffin 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.
- HCA Florida Largo HospitalLargo, FL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 100248
- Morton Plant HospitalClearwater, FL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 100127
Practice locations
Addresses where Vivian D. Griffin is enrolled with Medicare (CMS data updated October 2, 2026).
- 100 Highland Ave NLargo, FL 33770 (727) 683‑2900
- 400 Pinellas St, Suite 300Clearwater, FL 33756 (727) 447‑8100
- 714 Doctors DrEnglewood, FL 34223 (941) 460‑1300
Group practices
Medicare enrollment lists Vivian D. Griffin as a member of this group (CMS data updated October 2, 2026).
- Florida Cancer Specialists and Research Institute, LLC498 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in Largo
Clinicians with the same Medicare primary specialty in Largo, FL — not a recommendation.
Other clinicians in Florida Cancer Specialists and Research Institute, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Michigan Medical School |
| Graduation year | 1990 (36 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1801898614 |
| 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