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IMAD M RIAZUDDIN MD
NPI 1255891644
Anesthesiology in Houston, TX

Active since March 21, 2019PECOS EnrolledAccepts Medicare Assignment
6431 FANNIN ST STE JJL 310, HOUSTON, TX 77030(713) 500-5154 Get Directions Write a Review

NPPES record last updated: March 9, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 9, 2026, Jul 26, 2023, Jul 13, 2023 and 1 more (4 updates tracked since 2019).

About Imad M Riazuddin Md NPPES

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

IMAD M RIAZUDDIN MD (NPI 1255891644) is an individual anesthesiology provider in Houston, Texas, licensed in Texas (U2619) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with Great Plains Regional Medical Center, and maintains a secondary practice location in Houston.

NPPES Registry Identity

NPI1255891644
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameIMAD M RIAZUDDINCredential: MD
Location Address6431 FANNIN ST STE JJL 310Houston, TX 77030-1501
Mailing AddressPo Box 4439Houston, TX 77210-4439 · (713) 792-2991
Phone(713) 500-5154
Sole ProprietorYes
Medical School CMSUniversity Of Oklahoma College Of MedicineGraduated 2019
Enumeration DateMarch 21, 2019
Last NPPES UpdateMarch 9, 20264 updates tracked since enumeration
NPPES CertifiedMarch 9, 2026
✔ NPI 1255891644 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in TX · U2619
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
Also ListedAnesthesiology · Pain MedicineTaxonomy 207LP2900X · License U2619 (TX)
6431 FANNIN ST STE JJL 310, Houston, TX 77030
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Secondary Practice Location 1

Location 11515 Holcombe BlvdHouston, TX 77030-4000 · Phone (713) 792-6161

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter from Superior HealthPlan 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

Imad M Riazuddin 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 ID5890156764
PECOS Enrollment IDI20241002002578, I20250625002013
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

7

Medicare enrollment records show Imad Riazuddin reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Dynamic Anesthesia Providers PLLC
9.4 mi
Anesthesiology
510 W TIDWELL RD
Houston, TX 77091
  • Reassigned Medicare billing, Texas enrollment
  • 319 clinicians in this Medicare group
NPI 1346752326 (832) 465-3514
Compass Anesthesia Providers PLLC
20 mi
Anesthesiology
333 N TEXAS AVE
Webster, TX 77598
  • Reassigned Medicare billing, Texas enrollment
  • 403 clinicians in this Medicare group
NPI 1669829750 (281) 335-1700
Texans Anesthesia Associates PLLC
20 mi
Anesthesiology
333 N TEXAS AVE STE 1000
Webster, TX 77598
  • Reassigned Medicare billing, Texas enrollment
  • 543 clinicians in this Medicare group
NPI 1275733982 (713) 400-2990
Austin Anesthesiology Group PLLC
86 mi
Anesthesiology
1737 BRIARCREST DR STE 14
Bryan, TX 77802
  • Reassigned Medicare billing, Texas enrollment
  • 840 clinicians in this Medicare group
NPI 1528326154 (979) 776-4777
Anesthesia Medical Professionals, PLLC
426 mi
Anesthesiology
4801 INTEGRIS PKWY
Edmond, OK 73034
  • Reassigned Medicare billing, Oklahoma enrollment
  • 182 clinicians in this Medicare group
NPI 1962785931 (405) 297-4424
Western Oklahoma Pain Specialists LLC
456 mi
Interventional Pain Medicine
1007 N MAIN ST STE 101
Elk City, OK 73644
  • Reassigned Medicare billing, Oklahoma enrollment
  • 13 clinicians in this Medicare group
NPI 1558885749 (580) 339-8001
Regents Of The University Of
1,351 mi
Anesthesiology
101 THE CITY DR SOUTH
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 420 clinicians in this Medicare group
NPI 1487602546 (714) 456-8068

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

Hospital Affiliations CMS Care Compare

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

Great Plains Regional Medical Center

Acute Care Hospitals · Elk City, OK
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number370019
Location1801 West 3rd StreetElk City, OK 73644 · Beckham County
Emergency services Birthing friendly

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.

GARRETT WILLIAM BENSON
Student in an Organized Health Care Education/Training Program
6431 FANNIN ST STE JJL 310
HOUSTON, TX 77030
Harris County (713) 500-5154
DR. ANGELA THERESA BALLESTEROS MD
Student in an Organized Health Care Education/Training Program
6431 FANNIN ST STE JJL 310
HOUSTON, TX 77030
Harris County (713) 500-5154
OMAR YUSUFZAI MD
Student in an Organized Health Care Education/Training Program
6431 FANNIN ST STE JJL 310
HOUSTON, TX 77030
Harris County (713) 704-3303
DR. JASMINE KAUR GILL MD
Family Medicine
6431 FANNIN ST STE JJL 310
HOUSTON, TX 77030
Harris County (214) 908-8155
VANDIT SHRIRANG VYAS MBBS
Student in an Organized Health Care Education/Training Program
6431 FANNIN ST STE JJL 310
HOUSTON, TX 77030
Harris County (713) 500-5151
DR. DHRUV MRUGESH SHAH M.D
Student in an Organized Health Care Education/Training Program
6431 FANNIN ST STE JJL 310
HOUSTON, TX 77030
Harris County (713) 500-6500
ROMIL PATEL MD
Student in an Organized Health Care Education/Training Program
6431 FANNIN ST STE JJL 310
HOUSTON, TX 77030
Harris County (713) 500-5154
TOCHI UNEGBU-OGBONNA
Internal Medicine
6431 FANNIN ST STE JJL 310
HOUSTON, TX 77030
Harris County (713) 500-5154

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 Imad Riazuddin's NPI number?

The NPI number for Imad Riazuddin is 1255891644. It was assigned to this individual provider in the NPPES registry on March 21, 2019.

Where is Imad Riazuddin located?

Imad Riazuddin practices at 6431 Fannin St Ste Jjl 310, Houston, TX 77030. The listed phone number is (713) 500-5154.

What is Imad Riazuddin's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Imad Riazuddin enrolled in Medicare?

Yes. Imad Riazuddin 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 Imad Riazuddin's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Imad Riazuddin reassigns Medicare benefits to 7 organizations: Dynamic Anesthesia Providers PLLC (Houston, TX), Compass Anesthesia Providers PLLC (Webster, TX), Texans Anesthesia Associates PLLC (Webster, TX), Austin Anesthesiology Group PLLC (Bryan, TX), Anesthesia Medical Professionals, PLLC (Edmond, OK) and 2 more organizations, listed in the Medicare section above. 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 Imad Riazuddin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Imad Riazuddin accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 5 other insurers list Imad Riazuddin 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 Imad Riazuddin affiliated with any hospitals?

According to CMS data, Imad Riazuddin is affiliated with Great Plains Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Imad Riazuddin was last updated on March 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.