DR. MELISSA MARTINEZ-DIAZ MD
NPI 1255350427
Internal Medicine in San Antonio, TX

Active since July 19, 2006PECOS EnrolledAccepts Medicare Assignment
720 PLEASANTON RD, SAN ANTONIO, TX 78214(210) 921-3800(210) 334-2838 Get Directions Write a Review

NPPES record last updated: January 7, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jan 7, 2022, Jun 15, 2016 (2 updates tracked since 2016).

About Dr. Melissa Martinez-diaz Md NPPES

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

DR. MELISSA MARTINEZ-DIAZ MD (NPI 1255350427) is an individual internal medicine provider in San Antonio, Texas, licensed in Texas (M0812) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of Other (2000).

NPPES Registry Identity

NPI1255350427
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. MELISSA MARTINEZ-DIAZCredential: MD
Location Address720 PLEASANTON RDSan Antonio, TX 78214-1343
Mailing Address720 Pleasanton RdSan Antonio, TX 78214-1343 · (210) 921-3800 · Fax (210) 334-2851
Fax(210) 334-2838
Sole ProprietorNo
Medical School CMSOtherGraduated 2000
Enumeration DateJuly 19, 2006
Last NPPES UpdateJanuary 7, 20222 updates tracked since enumeration
NPPES CertifiedJanuary 7, 2022
NPI 1255350427 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in TX · M0812
Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

720 PLEASANTON RD, San Antonio, TX 78214

Accepted 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. Melissa Martinez-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 ID7012963267
PECOS Enrollment IDI20050330000807
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 3

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
65 services29 patients
Blood glucose (sugar) test performed by hand-held instrument 82962
A blood glucose test uses a handheld device to measure the amount of sugar in your blood. A small prick on your finger allows a drop of blood to be placed on a test strip, which is then read by the device. This helps monitor and manage diabetes effectively.
32 services15 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78214 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
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
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.

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.

Reported Quality Measures

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
88%33 patients4/55-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 20

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

Physician Assistant
720 PLEASANTON RD
SAN ANTONIO, TX 78214
Family Medicine
720 PLEASANTON RD
SAN ANTONIO, TX 78214
Physician Assistant
720 PLEASANTON RD
SAN ANTONIO, TX 78214
Clinic/Center (Primary Care)
720 PLEASANTON RD
SAN ANTONIO, TX 78214
Family Medicine
720 PLEASANTON RD
SAN ANTONIO, TX 78214
Family Medicine
720 PLEASANTON RD
SAN ANTONIO, TX 78214
Physician Assistant (Medical)
720 PLEASANTON RD
SAN ANTONIO, TX 78214
Internal Medicine
720 PLEASANTON RD
SAN ANTONIO, TX 78214

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 Melissa Martinez-diaz's NPI number?

The NPI number for Melissa Martinez-diaz is 1255350427. It was assigned to this individual provider in the NPPES registry on July 19, 2006.

Where is Melissa Martinez-diaz located?

Melissa Martinez-diaz practices at 720 Pleasanton Rd, San Antonio, TX 78214. The listed phone number is (210) 921-3800.

What is Melissa Martinez-diaz's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Melissa Martinez-diaz enrolled in Medicare?

Yes. Melissa Martinez-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 Melissa Martinez-diaz accept?

Health plans from UnitedHealthcare list Melissa Martinez-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 Melissa Martinez-diaz was last updated on January 7, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.