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Nephrology

Carlos O. Martinez, MD

Works at hospitals in Macon, GA · Cochran, GA · Warner Robins, GA … · Georgia

Summary

Dr. Carlos O. Martinez, MD is a nephrologist at 165 Emery Hwy, Suite 100, Macon, GA 31217. Phone: (478) 741-2150. Accepts Medicare assignment. In 2024, Carlos O. Martinez had 672 Original Medicare patients and 4,525 services. NPI 1841368933. 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 Carlos O. Martinez, 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 Carlos O. Martinez accept Medicare assignment?
Yes. Medicare's clinician data says Carlos O. Martinez 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 Carlos O. Martinez see?
In 2024, CMS data shows 672 Original Medicare patients and 4,525 services for Carlos O. Martinez. This counts Original Medicare only and measures volume, not quality.
What is Carlos O. Martinez's NPI number?
1841368933. 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 Carlos O. Martinez, 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 patients672
Services billed to Medicare4,525
Different services or procedures26
Participating Medicare providerYes
Average age of these patients74

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)711 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)692 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)563 services
  4. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)478 services
  5. Dialysis services, 4 or more physician visits per month (20 years or older) (90960)367 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%
  • Chronic kidney disease75%
  • Diabetes63%
  • Arthritis46%
  • Ischemic heart disease45%

Hospitals where Carlos O. Martinez works

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

Group practices

Medicare enrollment lists Carlos O. Martinez as a member of this group (CMS data updated October 2, 2026).

  • Renal Physicians of Georgia PC4 clinicians in the group

Specialties

Find other Nephrology doctors in Georgia →

Other nephrologists in Macon

Clinicians with the same Medicare primary specialty in Macon, GA — not a recommendation.

All nephrologists in Macon →

Other clinicians in Renal Physicians of Georgia PC

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

Clinician information

CredentialMD
Graduation year1982 (44 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1841368933
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