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Infectious Disease

Ronald W. Flenner, MD

Works at hospitals in Norfolk, VA · Virginia

Summary

Dr. Ronald W. Flenner, MD is an infectious disease doctor at 600 Gresham Dr, Norfolk, VA 23507. Accepts Medicare assignment. In 2024, Ronald W. Flenner had 27 Original Medicare patients and 105 services. NPI 1538133509. 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: Infectious disease doctor (Medicare lists Infectious Disease)
  • Address: 600 Gresham Dr, Norfolk, VA 23507 · Directions (1 more location)
  • Medicare: Accepts Medicare assignment
  • Hospital: Sentara Norfolk General Hospital
  • Group practice: Evms Academic Physicians and Surgeons Health Services Foundation
  • Medical school: Eastern Virginia Medical School · graduated 1989 (37 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Ronald W. Flenner, 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 Ronald W. Flenner accept Medicare assignment?
Yes. Medicare's clinician data says Ronald W. Flenner 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 Ronald W. Flenner see?
In 2024, CMS data shows 27 Original Medicare patients and 105 services for Ronald W. Flenner. This counts Original Medicare only and measures volume, not quality.
What is Ronald W. Flenner's NPI number?
1538133509. 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 Ronald W. Flenner, 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 patients27
Services billed to Medicare105
Different services or procedures15
Participating Medicare providerYes
Average age of these patients66

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)41 services
  2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)21 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 cholesterol63%
  • High blood pressure52%

Hospitals where Ronald W. Flenner works

Medicare's Facility Affiliation Data lists Ronald W. Flenner 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 Ronald W. Flenner is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ronald W. Flenner as a member of this group (CMS data updated October 2, 2026).

  • Evms Academic Physicians and Surgeons Health Services Foundation232 clinicians in the group

Specialties

Find other Infectious Disease doctors in Virginia →

Other infectious disease doctors in Norfolk

Clinicians with the same Medicare primary specialty in Norfolk, VA — not a recommendation.

All infectious disease doctors in Norfolk →

Other clinicians in Evms Academic Physicians and Surgeons Health Services Foundation

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

Clinician information

CredentialMD
Medical schoolEastern Virginia Medical School
Graduation year1989 (37 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1538133509
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