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GUSTAVO ENRIQUE AYALA M.D.
NPI 1992709356
Pathology - Anatomic Pathology & Clinical Pathology in Houston, TX

Active since June 13, 2005PECOS EnrolledAccepts Medicare Assignment
6411 FANNIN STREET, HOUSTON, TX 77030(713) 704-4000(713) 704-2658 Get Directions Write a Review

NPPES record last updated: November 2, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Gustavo Enrique Ayala M.d. NPPES

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

GUSTAVO ENRIQUE AYALA M.D. (NPI 1992709356) is an individual anatomic pathology & clinical pathology provider in Houston, Texas, licensed in Texas (K7501) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, is affiliated with Memorial Hermann - Texas Medical Center, and is a graduate of Other (1989).

NPPES Registry Identity

NPI1992709356
Entity TypeIndividualMale
Primary Taxonomy207ZP0102X
Provider Legal NameGUSTAVO ENRIQUE AYALACredential: M.D.
Location Address6411 FANNIN STREETHouston, TX 77030-1501
Mailing Address6431 Fannin Street, Msb 2.136Houston, TX 77030-1501 · (713) 500-5301 · Fax (713) 500-0695
Phone(713) 704-4000
Fax(713) 704-2658
Sole ProprietorNo
Medical School CMSOtherGraduated 1989
Enumeration DateJune 13, 2005
Last NPPES UpdateNovember 2, 2023
✔ NPI 1992709356 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 · K7501
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.
6411 FANNIN STREET, Houston, TX 77030
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Other Identifiers 1

Other220033092TX · Railroad Medicare

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Community Health Choice.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Gustavo Enrique Ayala M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID749234334
PECOS Enrollment IDI20050307000439
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method G0416
This procedure involves taking a small tissue sample from your gland located beneath your bladder. The sample is then examined under a microscope by a pathologist to check for any abnormalities or diseases. This is a standard method to ensure your well-being.
66 services66 patients
Special stained specimen slides to examine tissue, each multiplex procedure 88344
Special stained specimen slides are used to study tissue in detail. This multiplex procedure involves applying different dyes to the tissue sample on a slide to highlight specific elements. These colors help identify any abnormalities in the tissue, aiding in accurate diagnosis and treatment planning.
62 services34 patients
Special stained specimen slides to examine tissue, initial procedure 88342
This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.
51 services29 patients
Pathology examination of tissue using a microscope, moderately high complexity 88307
A pathology examination of tissue with moderate complexity involves a detailed study of a small tissue sample from your body. Using a microscope, experts analyze the tissue's structure and cells to identify any abnormalities. This helps in diagnosing various health conditions accurately.
43 services25 patients
Pathology examination of tissue using a microscope, intermediate complexity 88305
A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.
40 services31 patients
Pathology examination of specimen during surgery, first tissue block 88331
A pathology examination during surgery involves the immediate analysis of a removed tissue sample. This helps the surgeon make decisions during your operation. The "first tissue block" refers to the initial sample examined. It's a vital step to ensure your health.
14 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Memorial Hermann - Texas Medical Center

Acute Care Hospitals · Houston, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450068
Location6411 FanninHouston, TX 77030 · Harris County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77030 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$134.06 typical visit price
range $58.24 – $176.98
Typical copayment $33.51 (range $14.56 – $44.24)
Most-billed visit code 99204
Established Patient
$102.71 typical visit price
range $18.60 – $143.93
Typical copayment $25.67 (range $4.65 – $35.98)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

HIDEHIRO TAKEI M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
6411 FANNIN STREET
HOUSTON, TX 77030
Harris County (713) 704-4000
SYED GHAZI UR-REHMAN RIZVI MD
Internal Medicine (Critical Care Medicine)
6411 FANNIN STREET
HOUSTON, TX 77030
Harris County No phone listed
NGOC BAO PHAN NP
Nurse Practitioner (Gerontology)
6411 FANNIN STREET
HOUSTON, TX 77030
Harris County (346) 370-1526
NAVNEET NARULA M.D.
Pathology (Anatomic Pathology)
6411 FANNIN STREET
HOUSTON, TX 77030
Harris County (713) 704-4000
DENISSE LEZA RINCON M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
6411 FANNIN STREET
HOUSTON, TX 77030
Harris County (713) 704-4000
JOANNE B PRASHAD MD
Internal Medicine (Geriatric Medicine)
6411 FANNIN STREET
HOUSTON, TX 77030
Harris County (832) 778-0601
MAHMOUD M ELSAYAD M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
6411 FANNIN STREET
HOUSTON, TX 77030
Harris County (713) 704-4000
DR. AHMED MOHAMED KAMEL ABDEL AAL MD, PHD
Radiology (Vascular & Interventional Radiology)
6411 FANNIN STREET, MSB 2.130B
HOUSTON, TX 77030
Harris County (713) 704-1782

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 Gustavo Ayala's NPI number?

The NPI number for Gustavo Ayala is 1992709356. It was assigned to this individual provider in the NPPES registry on June 13, 2005.

Where is Gustavo Ayala located?

Gustavo Ayala practices at 6411 Fannin Street, Houston, TX 77030. The listed phone number is (713) 704-4000.

What is Gustavo Ayala's specialty?

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

Is Gustavo Ayala enrolled in Medicare?

Yes. Gustavo Ayala is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Gustavo Ayala accept?

Health plans from Blue Cross and Blue Shield of Texas and Community Health Choice list Gustavo Ayala as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Gustavo Ayala affiliated with any hospitals?

According to CMS data, Gustavo Ayala is affiliated with Memorial Hermann - Texas Medical Center.

When was this NPI record last updated?

The NPPES record for Gustavo Ayala was last updated on November 2, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.