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Internal Medicine

Wishanth R. Gooneratne, MD

Works at hospitals in Mission Viejo, CA · Long Beach, CA · California

Summary

Dr. Wishanth R. Gooneratne, MD is an internal medicine doctor at 1045 Atlantic Ave, Suite 708, Long Beach, CA 90813. Phone: (562) 491-9045. Accepts Medicare assignment. In 2024, Wishanth R. Gooneratne had 109 Original Medicare patients and 269 services. NPI 1669931564. 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 Wishanth R. Gooneratne, 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 Wishanth R. Gooneratne accept Medicare assignment?
Yes. Medicare's clinician data says Wishanth R. Gooneratne 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 Wishanth R. Gooneratne see?
In 2024, CMS data shows 109 Original Medicare patients and 269 services for Wishanth R. Gooneratne. This counts Original Medicare only and measures volume, not quality.
What is Wishanth R. Gooneratne's NPI number?
1669931564. 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 Wishanth R. Gooneratne, 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 patients109
Services billed to Medicare269
Different services or procedures16
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)124 services
  2. Hospital discharge day management, 30 minutes or less (99238)34 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)29 services
  4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)24 services
  5. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)18 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%
  • Diabetes61%
  • Arthritis57%
  • Chronic kidney disease50%
  • Ischemic heart disease48%

Hospitals where Wishanth R. Gooneratne works

Medicare's Facility Affiliation Data lists Wishanth R. Gooneratne 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 Wishanth R. Gooneratne is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Wishanth R. Gooneratne as a member of these groups (CMS data updated October 2, 2026).

  • Providence Medical Foundation1,466 clinicians in the group
  • Dignity Health86 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Long Beach

Clinicians with the same Medicare primary specialty in Long Beach, CA — not a recommendation.

All internal medicine doctors in Long Beach →

Other clinicians in Providence Medical Foundation

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

Clinician information

CredentialMD
Graduation year2013 (13 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1669931564
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