DR. MARIA DOLORES DIAZ MD
NPI 1326043506
Ophthalmology in Houston, TX

Q: What is Maria Diaz's NPI number?

The NPI number for Maria Diaz is 1326043506. It was assigned to this individual provider in the NPPES registry on June 15, 2005. The provider is also known as Dr. M Dolores Diaz MD.

Q: What is Maria Diaz's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Q: When was this NPI record last updated?

The NPPES record for Maria Diaz was last updated on April 1, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.

Active since June 15, 2005PECOS EnrolledAccepts Medicare Assignment

93.42/100

CMS Quality Rating

5614 E SAM HOUSTON PKWY N, HOUSTON, TX 77015(713) 678-8288 Get Directions Write a Review

NPPES record last updated: April 1, 2021. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Apr 1, 2021, Mar 19, 2021 (2 updates tracked since 2021).

On this page

About Dr. Maria Dolores Diaz Md NPPES

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

DR. MARIA DOLORES DIAZ MD (NPI 1326043506) is an individual ophthalmology provider in Houston, Texas, licensed in Texas (H9200) and active in the NPI registry since June 2005. She is enrolled in Medicare PECOS and is a graduate of University Of Texas Medical School At Houston (1989).

NPPES Registry Identity

NPI1326043506

Entity TypeIndividualFemale

Primary Taxonomy207W00000X

Provider Legal NameDR. MARIA DOLORES DIAZCredential: MD

Location Address5614 E SAM HOUSTON PKWY NHouston, TX 77015-3249

Mailing Address2855 Gramercy St Ste 400Houston, TX 77025-1697 · (713) 668-6828

Phone(713) 678-8288

Sole ProprietorNo

Medical School CMSUniversity Of Texas Medical School At HoustonGraduated 1989

Enumeration DateJune 15, 2005

Last NPPES UpdateApril 1, 20212 updates tracked since enumeration

NPPES CertifiedApril 1, 2021

✔ NPI 1326043506 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in TX · H9200

Definition

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

5614 E SAM HOUSTON PKWY N, Houston, TX 77015

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Other Names 1

Professional Name (2)Dr. M Dolores Diaz Md

Other Identifiers 1

Medicaid132333907TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.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

Dr. Maria Dolores Diaz Md 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 ID7911098629

PECOS Enrollment IDI20070926001228

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77015 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

$72.62 typical visit price

range $18.60 – $143.93

Typical copayment $18.15 (range $4.65 – $35.98)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

93.42/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

98.14

Improvement Activities

Cost

81.47

Reported Quality Measures

Diabetes: Eye Exam

Percentage of patients 18-75 years of age with diabetes who had a retinal or dilated eye exam by an eye care professional during the measurement period or a negative retinal exam (no evidence of retinopathy) in the 12 months prior to the measurement period

100%95 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 4

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

ANDREW YIM OD

Optometrist

5614 E SAM HOUSTON PKWY N
HOUSTON, TX 77015

Harris County (714) 678-8288

DR. MATTHEW ROBERT LAHMEYER OD

Optometrist

5614 E SAM HOUSTON PKWY N
HOUSTON, TX 77015

Harris County (713) 678-8288

DR. SONIA G LAURENZI OD

Optometrist

5614 E SAM HOUSTON PKWY N
HOUSTON, TX 77015

Harris County (713) 678-8288

HOUSTON OPTIC, PLLC

Durable Medical Equipment & Medical Supplies

5614 E SAM HOUSTON PKWY N
HOUSTON, TX 77015

Harris County (713) 678-8288

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 Maria Diaz's NPI number?

The NPI number for Maria Diaz is 1326043506. It was assigned to this individual provider in the NPPES registry on June 15, 2005. The provider is also known as Dr. M Dolores Diaz MD.

Where is Maria Diaz located?

Maria Diaz practices at 5614 E Sam Houston Pkwy N, Houston, TX 77015. The listed phone number is (713) 678-8288.

What is Maria Diaz's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is Maria Diaz enrolled in Medicare?

Yes. Maria Diaz 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 Maria Diaz accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 6 other insurers list Maria Diaz 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.

When was this NPI record last updated?

The NPPES record for Maria Diaz was last updated on April 1, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.