ALEXANDER POSTALIAN M.D.
NPI 1821436635
Internal Medicine - Cardiovascular Disease in Houston, TX

Q: What is Alexander Postalian's NPI number?

The NPI number for Alexander Postalian is 1821436635. It was assigned to this individual provider in the NPPES registry on June 13, 2013. The provider is also known as Alexander Postalian Yrausquin.

Q: What is Alexander Postalian's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Active since June 13, 2013PECOS EnrolledAccepts Medicare Assignment

84.42/100

CMS Quality Rating

6624 FANNIN ST, STE 2600, HOUSTON, TX 77030(713) 790-9401(713) 790-0353 Get Directions Write a Review

NPPES record last updated: June 4, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 4, 2025, Jan 20, 2023, Jun 8, 2020 (3 updates tracked since 2020).

On this page

About Alexander Postalian M.d. NPPES

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

ALEXANDER POSTALIAN M.D. (NPI 1821436635) is an individual cardiovascular disease provider in Houston, Texas, licensed in Texas (Q7453) and active in the NPI registry since June 2013. He is enrolled in Medicare PECOS, is affiliated with Chi St Luke's Health Baylor College Of Medicine Me, and is a graduate of Other (2010).

NPPES Registry Identity

NPI1821436635

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameALEXANDER POSTALIANCredential: M.D.

Location Address6624 FANNIN ST, STE 2600Houston, TX 77030-2338

Mailing Address6624 Fannin St, Ste 2600Houston, TX 77030-2338 · (713) 790-7401 · Fax (713) 790-0353

Phone(713) 790-9401

Fax(713) 790-0353

Sole ProprietorNo

Medical School CMSOtherGraduated 2010

Enumeration DateJune 13, 2013

Last NPPES UpdateJune 4, 20253 updates tracked since enumeration

NPPES CertifiedJune 4, 2025

✔ NPI 1821436635 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

License✔ Licensed in TX · Q7453

Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

Also ListedInternal Medicine · Interventional CardiologyTaxonomy 207RI0011X · License Q7453 (TX)

6624 FANNIN ST, Houston, TX 77030

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Other Names 1

Other Name (5)Alexander Postalian Yrausquin

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

Alexander Postalian 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 ID6204258528

PECOS Enrollment IDI20200615002152

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 22

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.

284 services219 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.

245 services207 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.

181 services105 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.

142 services135 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.

121 services42 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

117 services84 patients

Nuclear medicine studies of blood flow in heart muscle at rest and with stress with concurrent ct scan 78431

This is a diagnostic test where a tiny amount of radioactive material is used to examine your heart's blood flow at rest & during stress, alongside a CT scan for detailed images. It helps identify any heart-related issues like blockages or damage.

106 services105 patients

Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries A9555

Rubidium Rb-82 is a radioactive drug used in a PET scan to help visualize the heart. It helps detect areas with poor blood flow, aiding in diagnosing heart conditions. The dose is up to 60 millicuries per study.

106 services105 patients

Nuclear medicine study of heart muscle blood flow by pet 78434

A nuclear medicine study of heart muscle blood flow by PET is a non-invasive test that uses a small amount of radioactive substance to create detailed images of your heart's blood flow and function. It helps assess heart health and diagnose heart conditions.

100 services99 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.

72 services72 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.

50 services50 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.

48 services29 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.

43 services40 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.

42 services36 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.

39 services37 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.

32 services17 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.

25 services25 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

22 services22 patients

Complete ultrasound study of arm and leg arteries 93923

This procedure involves using sound waves to produce images of your arm and leg arteries. It helps identify blockages or abnormalities that could lead to conditions like stroke or peripheral artery disease. It's non-invasive and painless.

19 services19 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.

18 services18 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.

14 services14 patients

Ultrasound of aorta, vena cava, groin vessels or bypass grafts 93979

This procedure involves using sound waves to create images of your aorta, vena cava, groin vessels, or bypass grafts. It helps doctors check for issues like blockages or enlargements. It's non-invasive and painless.

12 services12 patients

Hospital Affiliations CMS Care Compare 2

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

Chi St Luke's Health Baylor College Of Medicine Me

Acute Care Hospitals · Houston, TX

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number450193

Location6720 Bertner Ave, Ste Mc1-266Houston, TX 77030 · Harris County

Emergency services

Houston Methodist Hospital

Acute Care Hospitals · Houston, TX

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450358

Location6565 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

$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.

84.42/100

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

Scored as part of a group practice

Quality

89.51

Improvement Activities

Cost

62.07

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.

DR. JAIME BENREY MD

Internal Medicine (Cardiovascular Disease)

6624 FANNIN ST, STE 2310
HOUSTON, TX 77030

Harris County (713) 796-2668

MARISOL J SKIBIN P.T.

Physical Therapist

6624 FANNIN ST, SUITE 2600
HOUSTON, TX 77030

Harris County (713) 790-1818

MELANIE EHNI MOUZOON MD

Pediatrics

6624 FANNIN ST
HOUSTON, TX 77030

Harris County (713) 442-0000

SAMAR SHETH MD

Internal Medicine (Cardiovascular Disease)

6624 FANNIN ST, SUITE 2320
HOUSTON, TX 77030

Harris County (832) 355-6676

FRANK TRAVIS GEROW M.D.

Orthopaedic Surgery (Pediatric Orthopaedic Surgery)

6624 FANNIN ST, SUITE 2600
HOUSTON, TX 77030

Harris County (713) 790-1818

DAWN DENISE SHORT CNM

Advanced Practice Midwife

6624 FANNIN ST, SUITE 1800
HOUSTON, TX 77030

Harris County (713) 797-1144

HOUSTON HEART CLINIC

Internal Medicine (Cardiovascular Disease)

6624 FANNIN ST, STE. 1590
HOUSTON, TX 77030

Harris County (713) 759-9901

SUSHANTH BEERAVOLU REDDY DO

Hospitalist

6624 FANNIN ST
HOUSTON, TX 77030

Harris County (713) 442-0427

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 Alexander Postalian's NPI number?

The NPI number for Alexander Postalian is 1821436635. It was assigned to this individual provider in the NPPES registry on June 13, 2013. The provider is also known as Alexander Postalian Yrausquin.

Where is Alexander Postalian located?

Alexander Postalian practices at 6624 Fannin St Ste 2600, Houston, TX 77030. The listed phone number is (713) 790-9401.

What is Alexander Postalian's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Alexander Postalian enrolled in Medicare?

Yes. Alexander Postalian 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 Alexander Postalian accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 3 other insurers list Alexander Postalian 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 Alexander Postalian affiliated with any hospitals?

According to CMS data, Alexander Postalian is affiliated with Chi St Luke's Health Baylor College Of Medicine Me and Houston Methodist Hospital.

When was this NPI record last updated?

The NPPES record for Alexander Postalian was last updated on June 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.