TULIO A DIAZ M.D.
NPI 1992739270
Internal Medicine - Interventional Cardiology in Dallas, TX

Q: What is Tulio Diaz's NPI number?

The NPI number for Tulio Diaz is 1992739270. It was assigned to this individual provider in the NPPES registry on July 10, 2006.

Q: What is Tulio Diaz's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Q: When was this NPI record last updated?

The NPPES record for Tulio Diaz was last updated on September 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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 July 10, 2006PECOS EnrolledAccepts Medicare Assignment

75.27/100

CMS Quality Rating

8440 WALNUT HILL LN STE 400, DALLAS, TX 75231(214) 369-3613(214) 706-2004 Get Directions Write a Review

NPPES record last updated: September 5, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 5, 2025, Jun 2, 2021, May 16, 2018 (3 updates tracked since 2018).

On this page

About Tulio A Diaz M.d. NPPES

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

TULIO A DIAZ M.D. (NPI 1992739270) is an individual interventional cardiology provider in Dallas, Texas, licensed in Texas (N9843) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Texas Health Presbyterian Hospital Kaufman, and is a graduate of Other (1999).

NPPES Registry Identity

NPI1992739270

Entity TypeIndividualMale

Primary Taxonomy207RI0011X

Provider Legal NameTULIO A DIAZCredential: M.D.

Location Address8440 WALNUT HILL LN STE 400Dallas, TX 75231-3879

Mailing Address8440 Walnut Hill Ln Ste 400Dallas, TX 75231-3879 · (214) 369-3613

Phone(214) 369-3613

Fax(214) 706-2004

Sole ProprietorNo

Medical School CMSOtherGraduated 1999

Enumeration DateJuly 10, 2006

Last NPPES UpdateSeptember 5, 20253 updates tracked since enumeration

NPPES CertifiedSeptember 5, 2025

✔ NPI 1992739270 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RI0011X

License✔ Licensed in TX · N9843

Definition

An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License N9843 (TX)

8440 WALNUT HILL LN STE 400, Dallas, TX 75231

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Other Identifiers 4

Medicaid110040590MA

Medicaid306991602TX

Other317822YTJCTX · Medicare Ptan

Other317822YTJVTX · Maedicare Ptan

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

Tulio A Diaz 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 ID3870548340

PECOS Enrollment IDI20110829000253

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 31

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.

Injection, regadenoson, 0.1 mg J2785

Regadenoson injection, 0.1 mg, is a medication used to help visualize the heart during a stress test. It works by increasing blood flow in the arteries of the heart. It's injected into a vein and is generally well-tolerated.

384 services95 patients

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.

370 services227 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

276 services104 patients

Technetium tc-99m sestamibi, diagnostic, per study dose A9500

Technetium Tc-99m Sestamibi is a diagnostic test used to create images of your heart or breast tissues. It involves a safe radioactive substance injection that helps doctors to detect any abnormalities or changes in these tissues.

118 services116 patients

Nuclear medicine studies of heart muscle at rest and with stress and spect 78452

Nuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.

117 services116 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician 93015

An exercise or drug-induced heart stress test with ECG is a procedure performed by a doctor to assess how your heart responds to exertion. It involves monitoring your heart's electrical activity while you exercise or after medication is given to mimic exercise effects.

116 services115 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

116 services113 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

109 services86 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

94 services87 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

74 services69 patients

Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist 93458

This procedure involves placing a tube into your left lower heart chamber and coronary artery. It helps doctors diagnose heart conditions by allowing them to view these areas in detail. A radiologist will review the images to ensure accurate diagnosis.

67 services63 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

57 services53 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

39 services38 patients

Ultrasound of both sides of head and neck blood flow 93880

An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.

38 services37 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

35 services35 patients

Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch 92928

This procedure involves placing a small, mesh tube (stent) in your coronary artery to keep it open. A balloon is used to expand the stent and artery, improving blood flow to your heart. It's typically done for a single artery or branch.

31 services24 patients

Review by radiologist of both arms or legs arteries image 75716

This procedure involves a radiologist examining images of your arm or leg arteries. These images help identify any blockages or abnormalities in the blood vessels that could affect circulation. It's a vital step in diagnosing conditions related to blood flow.

27 services15 patients

Review by radiologist of abdominal aorta image 75625

This is a procedure where a radiologist, a doctor specialized in medical imaging, examines an image of your abdominal aorta. The abdominal aorta is the large blood vessel that carries blood to your lower body. The radiologist checks for any abnormalities to ensure your overall vascular health.

24 services15 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

21 services16 patients

Ultrasound of leg arteries or artery grafts 93925

An ultrasound of leg arteries or artery grafts is a non-invasive imaging test. It uses high-frequency sound waves to capture live images from inside your body, specifically your leg arteries or grafts. This helps in detecting any blockages or abnormalities.

20 services20 patients

Review by radiologist of additional artery image 75774

This procedure involves a radiologist examining an extra image of your artery. It's done to gain more insight into your vascular health. The radiologist will study the image to identify any abnormalities or issues that may need further medical attention.

18 services13 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

18 services18 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

18 services17 patients

Limited ultrasound scan behind abdominal cavity 76775

A limited ultrasound scan behind the abdominal cavity is a non-invasive imaging method that helps visualize structures in the back of your abdomen. This procedure uses sound waves to create pictures of these areas, assisting in diagnosing certain conditions.

17 services16 patients

Ultrasound evaluation of heart blood vessel during diagnosis or treatment, initial vessel 93571

This procedure involves using ultrasound technology to examine the first blood vessel of your heart. It helps identify any abnormalities or issues, providing crucial information for diagnosis or treatment. It's a safe, non-invasive process.

16 services16 patients

Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional 93228

An Electrocardiogram (ECG) is a non-invasive test that records the electrical signals in your heart. For up to 30 days, a small device will continuously monitor your heart's activity. A healthcare professional will then review the data and provide a report on your heart's function.

15 services15 patients

Nuclear medicine studies of heart muscle at rest and with stress and spect 78452

14 services14 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 93018

An exercise or drug-induced heart stress test with ECG is a procedure to assess how your heart functions under stress. It can involve exercising or medication to make your heart work harder while an ECG records its activity. A physician reviews the results.

14 services14 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

13 services11 patients

Heart muscle strain imaging 93356

Heart muscle strain imaging is a non-invasive test that uses sound waves to create pictures of your heart. It helps doctors evaluate how well your heart muscle is working and detect any damage or disease. This can aid in diagnosing heart conditions and guiding treatment plans.

12 services12 patients

3d radiographic procedure 76376

A 3D radiographic procedure is a non-invasive imaging test that helps doctors visualize the internal structures of your body in three dimensions. This advanced technology provides detailed images, aiding in accurate diagnosis and treatment planning. It involves exposure to minimal radiation.

11 services11 patients

Hospital Affiliations CMS Care Compare 3

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

Texas Health Presbyterian Hospital Kaufman

Acute Care Hospitals · Kaufman, TX

OwnershipVoluntary non-profit - Private

CMS Certification Number450292

Location850 Ed HallKaufman, TX 75142 · Kaufman County

Emergency services

Texas Health Presbyterian Hospital Dallas

Acute Care Hospitals · Dallas, TX

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450462

Location8200 Walnut Hill LaneDallas, TX 75231 · Dallas County

Emergency services Birthing friendly

Texas Health Presbyterian Hospital Rockwall

Acute Care Hospitals · Rockwall, TX

5/5 CMS rating

OwnershipProprietary

CMS Certification Number670044

Location3150 Horizon RoadRockwall, TX 75032 · Rockwall County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75231 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

$131.01 typical visit price

range $57.18 – $172.86

Typical copayment $32.75 (range $14.29 – $43.21)

Most-billed visit code 99204

Established Patient

$100.80 typical visit price

range $18.48 – $141.20

Typical copayment $25.20 (range $4.62 – $35.30)

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.

75.27/100

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

Scored as part of a group practice

Quality

68.07

Promoting Interoperability

100

Improvement Activities

Cost

49.5

Other Providers at the Same Location NPPES 5

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

MOHAMMAD HASSAN PERVAIZ M.D.

Internal Medicine (Interventional Cardiology)