Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Uma F. Iyer, MD

Works at hospitals in Lake City, FL · Gainesville, FL · Florida

Summary

Dr. Uma F. Iyer, MD is an internal medicine doctor at 6420 W Newberry Rd E Wing, 1 Florida Cancer Specialists P L, Gainesville, FL 32605. Phone: (352) 332-3900. Accepts Medicare assignment. In 2024, Uma F. Iyer had 605 Original Medicare patients and 27,925 services. NPI 1558399899. 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 Uma F. Iyer, 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 Uma F. Iyer accept Medicare assignment?
Yes. Medicare's clinician data says Uma F. Iyer 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 Uma F. Iyer see?
In 2024, CMS data shows 605 Original Medicare patients and 27,925 services for Uma F. Iyer. This counts Original Medicare only and measures volume, not quality.
What is Uma F. Iyer's NPI number?
1558399899. 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 Uma F. Iyer, 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 patients605
Services billed to Medicare27,925
Different services or procedures90
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use) (Q0138)9,180 services
  2. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)340 services
  3. Insertion of needle into vein for collection of blood sample (36415)260 services
  4. Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)260 services
  5. Injection, dexamethasone sodium phosphate, 1 mg (J1100)210 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%
  • Arthritis59%
  • Diabetes48%
  • Ischemic heart disease48%
  • Chronic kidney disease47%

Hospitals where Uma F. Iyer works

Medicare's Facility Affiliation Data lists Uma F. Iyer 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 Uma F. Iyer is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Uma F. Iyer as a member of this group (CMS data updated October 2, 2026).

  • Florida Cancer Specialists and Research Institute, LLC498 clinicians in the group

Specialties

Find other Internal Medicine doctors in Florida →

Other internal medicine doctors in Gainesville

Clinicians with the same Medicare primary specialty in Gainesville, FL — not a recommendation.

All internal medicine doctors in Gainesville →

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

CredentialMD
Graduation year1989 (37 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1558399899
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