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

DR. RAZVAN T DADU M.D.
NPI 1427201375
Internal Medicine - Interventional Cardiology in Houston, TX

Q: What is Razvan Dadu's NPI number?

The NPI number for Razvan Dadu is 1427201375. It was assigned to this individual provider in the NPPES registry on October 23, 2008.

Q: What is Razvan Dadu'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 Razvan Dadu was last updated on September 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 56 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.

Active since October 23, 2008PECOS EnrolledAccepts Medicare Assignment

925 GESSNER RD STE 630, HOUSTON, TX 77024(713) 465-3535 Get Directions Write a Review

NPPES record last updated: September 8, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 8, 2026, May 21, 2025, Sep 16, 2024 and 2 more (5 updates tracked since 2018).

On this page

About Dr. Razvan T Dadu M.d. NPPES

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

DR. RAZVAN T DADU M.D. (NPI 1427201375) is an individual interventional cardiology provider in Houston, Texas, licensed in Texas (P2221) and active in the NPI registry since October 2008. He is enrolled in Medicare PECOS, is affiliated with Memorial Hermann Hospital System, and maintains a secondary practice location in Houston.

NPPES Registry Identity

NPI1427201375

Entity TypeIndividualMale

Primary Taxonomy207RI0011X

Provider Legal NameDR. RAZVAN T DADUCredential: M.D.

Location Address925 GESSNER RD STE 630Houston, TX 77024-2553

Mailing Address930 Frostwood Dr Ste 2.200Houston, TX 77024-2450 · (713) 338-4523 · Fax (713) 338-6500

Phone(713) 465-3535

Sole ProprietorNo

Medical School CMSOtherGraduated 2006

Enumeration DateOctober 23, 2008

Last NPPES UpdateSeptember 8, 20265 updates tracked since enumeration

NPPES CertifiedSeptember 8, 2026

✔ NPI 1427201375 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RI0011X

License✔ Licensed in TX · P2221

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 MedicineTaxonomy 207R00000X · License P2221 (TX)

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License P2221 (TX)

925 GESSNER RD STE 630, Houston, TX 77024

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Secondary Practice Location 1

Location 16550 Fannin St Ste 1901Houston, TX 77030 · Phone (713) 441-1100 · Fax (713) 790-2643

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Oscar Insurance Company, WellPoint.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Razvan T Dadu 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 ID2567618747

PECOS Enrollment IDI20120802000637

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.

Medicare Billing Reassignments

Medicare enrollment records show Razvan Dadu reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Houston Cardiac Clinic P.A.

Same address

Cardiovascular Disease

925 GESSNER RD, SUITE 525
Houston, TX 77024

Reassigned Medicare billing, Texas enrollment
4 clinicians in this Medicare group

NPI 1760423263 (713) 827-7680

Baylor College Of Medicine

9.9 mi

Internal Medicine

6620 MAIN ST
Houston, TX 77030

Reassigned Medicare billing, Texas enrollment
2,296 clinicians in this Medicare group

NPI 1104867175 (713) 798-2500

Memorial Hermann Medical Group

21 mi

Family Medicine

6631 W CROSS CREEK BEND LN STE 200
Fulshear, TX 77441

Reassigned Medicare billing, Texas enrollment
1,235 clinicians in this Medicare group

NPI 1003985102 (832) 658-5750

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 25

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.

456 services259 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.

409 services140 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.

310 services226 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.

178 services145 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.

170 services158 patients

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.

152 services37 patients

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

147 services127 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.

143 services123 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

130 services119 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.

106 services102 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.

98 services91 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.

95 services92 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.

90 services82 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.

52 services51 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.

50 services37 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

47 services26 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.

37 services37 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

37 services34 patients

Heart rhythm recording of continous external ekg over 8-15 days 93246

A heart rhythm recording is a non-invasive procedure where a small device, attached externally, monitors your heart's electrical activity for 8-15 days. It helps detect irregular heart rhythms, assess heart rate, and guide treatment decisions. It's safe, painless, and can be done during normal daily activities.

31 services31 patients

Heart rhythm review and interpretation of continous external ekg over 8-15 days 93248

This service involves wearing a device for 8-15 days that continuously records your heart's electrical activity. It helps in identifying irregular heart rhythms. The recorded data is then reviewed and interpreted by a healthcare professional for any abnormalities.

30 services30 patients

Insertion of tube in coronary artery for diagnosis with review by radiologist 93454

This procedure involves placing a small tube into your coronary artery. It helps to identify any blockages or issues within the artery. A radiologist, a doctor specialized in medical imaging, will review the results to ensure accurate diagnosis.

26 services23 patients

Repair of mitral valve through the skin, initial prosthesis 33418

This procedure, known as Transcatheter Mitral Valve Repair (TMVR), involves a small tube inserted through your skin into a blood vessel. A device is then guided to your heart to repair the mitral valve, using an initial prosthesis. This is a less invasive alternative to open-heart surgery.

23 services23 patients

Replacement of aortic valve through the skin and femoral artery 33361

This procedure, known as Transcatheter Aortic Valve Replacement (TAVR), involves replacing a damaged aortic valve through a small incision in the leg. A catheter is inserted into the femoral artery and guided up to the heart. The new valve is then positioned and deployed, restoring normal blood flow.

18 services17 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

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

12 services12 patients

Hospital Affiliations CMS Care Compare 4

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

Memorial Hermann Hospital System

Acute Care Hospitals · Houston, TX

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450184

Location1635 North Loop WestHouston, TX 77008 · Harris County

Emergency services Birthing friendly

Memorial Hermann Memorial City Hospital

Acute Care Hospitals · Houston, TX

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450610

Location921 GessnerHouston, TX 77024 · Harris County

Emergency services Birthing friendly

Houston Methodist Sugarland Hospital

Acute Care Hospitals · Sugar Land, TX

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450820

Location16655 Southwest FreewaySugar Land, TX 77479 · Fort Bend County

Emergency services Birthing friendly

Houston Methodist West Hospital

Acute Care Hospitals · Houston, TX

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number670077

Location18500 Katy FreewayHouston, TX 77094 · Harris County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77024 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 2

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

PRIMEWELL MEDICAL GROUP, PLLC

Internal Medicine

925 GESSNER RD STE 630
HOUSTON, TX 77024

Harris County (281) 989-8231

JAMES KENNEDY O'NEILL M.D.

Internal Medicine (Interventional Cardiology)

925 GESSNER RD STE 630
HOUSTON, TX 77024

Harris County (713) 465-3535

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 Razvan Dadu's NPI number?

The NPI number for Razvan Dadu is 1427201375. It was assigned to this individual provider in the NPPES registry on October 23, 2008.

Where is Razvan Dadu located?

Razvan Dadu practices at 925 Gessner Rd Ste 630, Houston, TX 77024. The listed phone number is (713) 465-3535.

What is Razvan Dadu's specialty?

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

Is Razvan Dadu enrolled in Medicare?

Yes. Razvan Dadu 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.

Which organizations bill Medicare for Razvan Dadu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Razvan Dadu reassigns Medicare benefits to 3 organizations: Houston Cardiac Clinic P.A. (Houston, TX), Baylor College Of Medicine (Houston, TX) and Memorial Hermann Medical Group (Fulshear, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Razvan Dadu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Razvan Dadu accept?

Health plans from Blue Cross and Blue Shield of Texas, Oscar Insurance Company and WellPoint list Razvan Dadu 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 Razvan Dadu affiliated with any hospitals?

According to CMS data, Razvan Dadu is affiliated with Memorial Hermann Hospital System, Memorial Hermann Memorial City Hospital, Houston Methodist Sugarland Hospital and Houston Methodist West Hospital.

When was this NPI record last updated?

The NPPES record for Razvan Dadu was last updated on September 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 56 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.