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Family Practice

Konstantinos Melahoures, MD

Works at hospitals in Laguna Hills, CA · Mission Viejo, CA · California

Summary

Dr. Konstantinos Melahoures, MD is a family doctor at 27660 Santa Margarita Pkwy, Mission Viejo, CA 92691. Phone: (949) 951-7111. Accepts Medicare assignment. In 2024, Konstantinos Melahoures had 284 Original Medicare patients and 12,994 services. NPI 1598939472. 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 Konstantinos Melahoures, 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 Konstantinos Melahoures accept Medicare assignment?
Yes. Medicare's clinician data says Konstantinos Melahoures 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 Konstantinos Melahoures see?
In 2024, CMS data shows 284 Original Medicare patients and 12,994 services for Konstantinos Melahoures. This counts Original Medicare only and measures volume, not quality.
What is Konstantinos Melahoures's NPI number?
1598939472. 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 Konstantinos Melahoures, 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 patients284
Services billed to Medicare12,994
Different services or procedures87
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Injection, methylprednisolone sodium succinate, 5 mg (J2919)5,477 services
  2. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)1,332 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)1,075 services
  4. Injection of drug or substance under skin or into muscle (96372)955 services
  5. Injection, tobramycin sulfate, up to 80 mg (J3260)730 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 cholesterol69%
  • High blood pressure64%
  • Arthritis48%
  • Ischemic heart disease25%
  • Diabetes23%
  • Anxiety18%

Hospitals where Konstantinos Melahoures works

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

Specialties

Find other Family Practice doctors in California →

Other family doctors in Mission Viejo

Clinicians with the same Medicare primary specialty in Mission Viejo, CA — not a recommendation.

All family doctors in Mission Viejo →

Clinician information

CredentialMD
Graduation year1980 (46 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1598939472
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