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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. MARCIA ARLENE BARNES M.D.
NPI 1740285352
Pathology - Anatomic Pathology & Clinical Pathology in Conroe, TX

Active since June 20, 2005
504 MEDICAL CENTER BLVD, CONROE, TX 77304(713) 432-1100(713) 432-0221 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Marcia Arlene Barnes M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARCIA ARLENE BARNES M.D. (NPI 1740285352) is an individual anatomic pathology & clinical pathology provider in Conroe, Texas, licensed in Texas (K5798) and active in the NPI registry since June 2005.

NPPES Registry Identity

NPI1740285352
Entity TypeIndividualFemale
Primary Taxonomy207ZP0102X
Provider Legal NameDR. MARCIA ARLENE BARNESCredential: M.D.
Location Address504 MEDICAL CENTER BLVDConroe, TX 77304-2808
Mailing AddressPo Box 4677Houston, TX 77210-4677
Phone(713) 432-1100
Fax(713) 432-0221
Sole ProprietorNo
Enumeration DateJune 20, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1740285352 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
License✔ Licensed in TX · K5798
Definition
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
504 MEDICAL CENTER BLVD, Conroe, TX 77304
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MEHIK KHAWAJA CAA
Anesthesiologist Assistant
504 MEDICAL CENTER BLVD
CONROE, TX 77304
Montgomery County (936) 539-1111
MICHELLE HEBERT M.D.
Pathology (Hematology)
504 MEDICAL CENTER BLVD
CONROE, TX 77304
Montgomery County (713) 432-1100
DR. PETER WILLIAM HARRIS M.D
Emergency Medicine
504 MEDICAL CENTER BLVD
CONROE, TX 77304
Montgomery County (936) 539-7044
HEENA KHAN MD
Internal Medicine
504 MEDICAL CENTER BLVD
CONROE, TX 77304
Montgomery County (901) 857-3952
ANNE S. WITSON M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
504 MEDICAL CENTER BLVD
CONROE, TX 77304
Montgomery County (713) 481-3544
EMILIE ROUAH M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
504 MEDICAL CENTER BLVD
CONROE, TX 77304
Montgomery County (713) 481-3544
IRENE GELMAN MD
Hospitalist
504 MEDICAL CENTER BLVD
CONROE, TX 77304
Montgomery County (713) 269-5483
TIMOTHY J O'BRIEN M.D.
Emergency Medicine
504 MEDICAL CENTER BLVD
CONROE, TX 77304
Montgomery County (409) 539-1111

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marcia Barnes's NPI number?

The NPI number for Marcia Barnes is 1740285352. It was assigned to this individual provider in the NPPES registry on June 20, 2005.

Where is Marcia Barnes located?

Marcia Barnes practices at 504 Medical Center Blvd, Conroe, TX 77304. The listed phone number is (713) 432-1100.

What is Marcia Barnes's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

When was this NPI record last updated?

The NPPES record for Marcia Barnes was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 33 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.