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

DR. MUSTAFA DHEYAULDEEN ALQAYSI M.D.
NPI 1790217537
Internal Medicine - Interventional Cardiology in Cypress, TX

Active since March 30, 2017PECOS EnrolledAccepts Medicare Assignment
24518 NORTHWEST FWY STE 355, CYPRESS, TX 77429(832) 688-8400(832) 688-8430 Get Directions Write a Review

NPPES record last updated: October 8, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 8, 2026, Jan 13, 2026, Nov 17, 2025 and 5 more (8 updates tracked since 2017).

About Dr. Mustafa Dheyauldeen Alqaysi M.d. NPPES

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

DR. MUSTAFA DHEYAULDEEN ALQAYSI M.D. (NPI 1790217537) is an individual interventional cardiology provider in Cypress, Texas, licensed in Texas (S4591) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, is affiliated with Houston Methodist Hospital, and maintains a secondary practice location in Cypress.

NPPES Registry Identity

NPI1790217537
Entity TypeIndividualMale
Primary Taxonomy207RI0011X
Provider Legal NameDR. MUSTAFA DHEYAULDEEN ALQAYSICredential: M.D.
Location Address24518 NORTHWEST FWY STE 355Cypress, TX 77429-2358
Mailing AddressPo Box 3686Houston, TX 77253-3686 · (832) 688-8400 · Fax (832) 688-8430
Phone(832) 688-8400
Fax(832) 688-8430
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateMarch 30, 2017
Last NPPES UpdateOctober 8, 20268 updates tracked since enumeration
NPPES CertifiedOctober 8, 2026
✔ NPI 1790217537 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 · S4591
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 S4591 (TX)
24518 NORTHWEST FWY STE 355, Cypress, TX 77429
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Other Names 1

Former Name (1)Mustafa Dheyauldeen Alqaysi M.d.

Secondary Practice Location 1

Location 121212 Northwest Fwy Ste 285Cypress, TX 77429-5883 · Phone (832) 688-8400 · Fax (832) 688-8430

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, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Mustafa Dheyauldeen Alqaysi 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 ID5799054227
PECOS Enrollment IDI20200731000591
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

3

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

Cypress Heart And Vascular Center PLLC
Same address
Interventional Cardiology
24518 NORTHWEST FWY STE 355
Cypress, TX 77429
  • Reassigned Medicare billing, Texas enrollment
  • 11 clinicians in this Medicare group
NPI 1780998385 (832) 688-8400
Memorial Hermann Medical Group
22 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
University Of Texas Health Science Center At San Antonio
177 mi
Clinical Pathology/Laboratory Medicine
7703 FLOYD CURL DR RM 327B
San Antonio, TX 78229
  • Reassigned Medicare billing, Texas enrollment
  • 2,397 clinicians in this Medicare group
NPI 1396717989 (210) 450-9000

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 2

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.

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.
41 services20 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.
12 services12 patients

Hospital Affiliations CMS Care Compare 3

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

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

Hca Houston Healthcare Kingwood

Acute Care Hospitals · Kingwood, TX
3/5 CMS rating
OwnershipProprietary
CMS Certification Number450775
Location22999 Us Hwy 59Kingwood, TX 77325 · Harris County
Emergency services Birthing friendly

Houston Methodist Willowbrook Hospital

Acute Care Hospitals · Houston, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450844
Location18220 State Highway 249Houston, TX 77070 · Harris County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77429 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 10

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

MICHAEL JACOB HERMELIN M.D.
Internal Medicine (Cardiovascular Disease)
24518 NORTHWEST FWY STE 355
CYPRESS, TX 77429
Harris County (832) 688-8400
SAAD ALSUWAIDI MA
Internal Medicine (Gastroenterology)
24518 NORTHWEST FWY STE 355
CYPRESS, TX 77429
Harris County (346) 537-5999
DR. JOSE CHAVEZ M.D.
Internal Medicine (Interventional Cardiology)
24518 NORTHWEST FWY STE 355
CYPRESS, TX 77429
Harris County (832) 688-8400
DR. AZFAR BILAL SHEIKH M.D.
Internal Medicine (Interventional Cardiology)
24518 NORTHWEST FWY STE 355
CYPRESS, TX 77429
Harris County (832) 688-8400
DR. AHMAD ABBAD ISBITAN M.D.
Internal Medicine (Interventional Cardiology)
24518 NORTHWEST FWY STE 355
CYPRESS, TX 77429
Harris County (832) 688-8400
ISMAIL M HADER M.D.
Internal Medicine (Gastroenterology)
24518 NORTHWEST FWY STE 355
CYPRESS, TX 77429
Harris County (346) 537-5999
KEVIN LIN MD
Internal Medicine (Cardiovascular Disease)
24518 NORTHWEST FWY STE 355
CYPRESS, TX 77429
Harris County (832) 688-8400
DR. FADI M ALAMEDDINE M.D.
Internal Medicine (Interventional Cardiology)
24518 NORTHWEST FWY STE 355
CYPRESS, TX 77429
Harris County (832) 688-8400

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 Mustafa Alqaysi's NPI number?

The NPI number for Mustafa Alqaysi is 1790217537. It was assigned to this individual provider in the NPPES registry on March 30, 2017. The provider is also known as Mustafa Dheyauldeen Alqaysi M.D..

Where is Mustafa Alqaysi located?

Mustafa Alqaysi practices at 24518 Northwest Fwy Ste 355, Cypress, TX 77429. The listed phone number is (832) 688-8400.

What is Mustafa Alqaysi's specialty?

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

Is Mustafa Alqaysi enrolled in Medicare?

Yes. Mustafa Alqaysi 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 Mustafa Alqaysi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mustafa Alqaysi reassigns Medicare benefits to 3 organizations: Cypress Heart And Vascular Center PLLC (Cypress, TX), Memorial Hermann Medical Group (Fulshear, TX) and University Of Texas Health Science Center At San Antonio (San Antonio, 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 Mustafa Alqaysi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mustafa Alqaysi 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 4 other insurers list Mustafa Alqaysi 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 Mustafa Alqaysi affiliated with any hospitals?

According to CMS data, Mustafa Alqaysi is affiliated with Houston Methodist Hospital, Hca Houston Healthcare Kingwood and Houston Methodist Willowbrook Hospital.

When was this NPI record last updated?

The NPPES record for Mustafa Alqaysi was last updated on October 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.