Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Carlos O Martinez, M.D.

Nephrology Physician in Macon, GA · enumerated 2006 · practices at Renal Physicians of Georgia PC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1841368933

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Registry record

Entity type Individual (Type 1)

Name Carlos O Martinez

Credential M.D.

Sex Male

Practice address Macon, GA, 31217

Phone (478) 741-2150

Fax (478) 741-2208

Enumeration date Nov 30, 2006

Last updated in NPPES May 2, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 031793 (GA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
CJ4042	Other	GA	RAILROAD MEDICARE GROUP
390007351	Other	GA	RAILROAD MEDICARE
00459841M	Medicaid	GA	-
00459841N	Medicaid	GA	-
00459841U	Medicaid	GA	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Carlos Martinez practice?

The practice location on file with NPPES is in Macon, GA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Carlos Martinez?

The National Provider Identifier (NPI) for Carlos Martinez is 1841368933, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Renal Physicians of Georgia PC Nephrology Physician · Macon, GA NPI 1851392476 Chanty Davis Nephrology Physician · Macon, GA NPI 1215951298 Amy Williams Family Nurse Practitioner · Macon, GA NPI 1851772867

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-02.