DR. ALEXANDER JAMES KIENER MD, MPH
NPI 1790289320
Pediatrics - Pediatric Cardiology in Houston, TX

Active since March 20, 2018PECOS Enrolled
6651 MAIN ST, HOUSTON, TX 77030(832) 824-1000 Get Directions Write a Review

NPPES record last updated: January 21, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 21, 2026, Jul 27, 2021, Jul 21, 2021 and 2 more (5 updates tracked since 2018).

About Dr. Alexander James Kiener Md, Mph NPPES

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

DR. ALEXANDER JAMES KIENER MD, MPH (NPI 1790289320) is an individual pediatric cardiology provider in Houston, Texas, licensed in Texas (W2526) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS and is a graduate of Other (2018).

NPPES Registry Identity

NPI1790289320
Entity TypeIndividualMale
Primary Taxonomy2080P0202X
Provider Legal NameDR. ALEXANDER JAMES KIENERCredential: MD, MPH
Location Address6651 MAIN STHouston, TX 77030-2351
Mailing Address6651 Main StHouston, TX 77030-2351
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateMarch 20, 2018
Last NPPES UpdateJanuary 21, 20265 updates tracked since enumeration
NPPES CertifiedJanuary 21, 2026
✔ NPI 1790289320 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric CardiologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0202X
License✔ Licensed in TX · W2526
Definition
A pediatric cardiologist provides comprehensive care to patients with cardiovascular problems. This specialist is skilled in selecting, performing and evaluating the structural and functional assessment of the heart and blood vessels, and the clinical evaluation of cardiovascular disease.
6651 MAIN ST, Houston, TX 77030

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Alexander James Kiener Md, Mph is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6901153774
PECOS Enrollment IDI20260311001655
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 Reassignment

Medicare enrollment records show Alexander Kiener reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pediatrics
6621 FANNIN ST
Houston, TX 77030
  • Reassigned Medicare billing, Texas enrollment
  • Medicare enrollment name: Texas Childrens Physician Group
  • 2,498 clinicians in this Medicare group

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

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.

Physical Therapist
6651 MAIN ST
HOUSTON, TX 77030
Pediatrics (Pediatric Critical Care Medicine)
6651 MAIN ST
HOUSTON, TX 77030
Pediatrics (Pediatric Critical Care Medicine)
6651 MAIN ST
HOUSTON, TX 77030
Nurse Practitioner (Pediatrics)
6651 MAIN ST
HOUSTON, TX 77030
Obstetrics & Gynecology (Urogynecology and Reconstructive Pelvic Surgery)
6651 MAIN ST
HOUSTON, TX 77030
Pediatrics (Pediatric Critical Care Medicine)
6651 MAIN ST
HOUSTON, TX 77030
Physical Therapist
6651 MAIN ST
HOUSTON, TX 77030
Physical Therapist
6651 MAIN ST
HOUSTON, TX 77030

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 Kiener's NPI number?

The NPI number for Alexander Kiener is 1790289320. It was assigned to this individual provider in the NPPES registry on March 20, 2018.

Where is Alexander Kiener located?

Alexander Kiener practices at 6651 Main St, Houston, TX 77030. The listed phone number is (832) 824-1000.

What is Alexander Kiener's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.

Is Alexander Kiener enrolled in Medicare?

Yes. Alexander Kiener is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Alexander Kiener's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Kiener reassigns Medicare benefits to Texas Children's Physician Group (Houston, TX). The 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 Alexander Kiener's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alexander Kiener accept?

Health plans from Moda Health Plan, Inc. list Alexander Kiener 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.

When was this NPI record last updated?

The NPPES record for Alexander Kiener was last updated on January 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.