1. Home
  2. Directory
  3. Arkansas
  4. Little Rock
  5. Student In An Organized Health Care Education Training Program
  6. NPI Profile

ALEX JOHN CLAUSEN
NPI 1366021867
Student in an Organized Health Care Education/Training Program in Little Rock, AR

Active since April 03, 2021PECOS Enrolled
4301 W MARKHAM ST # 641, LITTLE ROCK, AR 72205(501) 686-8000(501) 526-5148 Get Directions Write a Review

NPPES record last updated: January 29, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 25, 2024, May 4, 2024, Apr 3, 2021 (3 updates tracked since 2021).

About Alex John Clausen NPPES

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

ALEX JOHN CLAUSEN (NPI 1366021867) is an individual student in an organized health care education/training program in Little Rock, Arkansas and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS and maintains a secondary practice location in Houston.

NPPES Registry Identity

NPI1366021867
Entity TypeIndividualMale
Primary Taxonomy390200000X
Provider Legal NameALEX JOHN CLAUSEN
Location Address4301 W MARKHAM ST # 641Little Rock, AR 72205-7101
Mailing Address4301 W Markham St # 783Little Rock, AR 72205-7101 · (501) 686-8000 · Fax (501) 526-5148
Phone(501) 686-8000
Fax(501) 526-5148
Sole ProprietorNo
Enumeration DateApril 3, 2021
Last NPPES UpdateJanuary 29, 20253 updates tracked since enumeration
NPPES CertifiedJanuary 29, 2025
✔ NPI 1366021867 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyStudent in an Organized Health Care Education/Training ProgramStudent, Health Care
Taxonomy Code390200000X
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
Also ListedInternal MedicineTaxonomy 207R00000X · License E-17635 (AR)
4301 W MARKHAM ST # 641, Little Rock, AR 72205
Open in Google Maps ↗

Secondary Practice Location 1

Location 16410 Fannin St Ste 600Houston, TX 77030-5206 · Phone (832) 325-7100 · Fax (713) 512-2242

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Arkansas Blue Cross and Blue Shield, Health Advantage, Octave.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alex John Clausen is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Alex Clausen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Of Arkansas For Medical Sciences
Same address
Advanced Practice Midwife
4301 W MARKHAM ST # 783
Little Rock, AR 72205
  • Reassigned Medicare billing, Arkansas enrollment
  • 2,038 clinicians in this Medicare group
NPI 1043372220 (501) 686-8000

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 19

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

DR. ALICE P ALEXANDER MD
Internal Medicine
4301 W MARKHAM ST # 641
LITTLE ROCK, AR 72205
Pulaski County (501) 686-8000
THOMAS PLES SPRADLEY MD
Internal Medicine
4301 W MARKHAM ST # 641
LITTLE ROCK, AR 72205
Pulaski County (501) 686-1010
NATHAN JOHNSON
Student in an Organized Health Care Education/Training Program
4301 W MARKHAM ST # 641
LITTLE ROCK, AR 72205
Pulaski County (501) 686-5545
DR. ZACHARY WALKER TILLEY MD
Internal Medicine
4301 W MARKHAM ST # 641
LITTLE ROCK, AR 72205
Pulaski County (501) 526-1010
MATTHEW LAWS
Student in an Organized Health Care Education/Training Program
4301 W MARKHAM ST # 641
LITTLE ROCK, AR 72205
Pulaski County (501) 686-5545
MADISON B MORRIS MD
Internal Medicine
4301 W MARKHAM ST # 641
LITTLE ROCK, AR 72205
Pulaski County (501) 686-8000
DR. ELIZABETH CAROL GATH M.D.
Internal Medicine
4301 W MARKHAM ST # 641
LITTLE ROCK, AR 72205
Pulaski County (501) 686-8000
AARTHI RAO
Student in an Organized Health Care Education/Training Program
4301 W MARKHAM ST # 641
LITTLE ROCK, AR 72205
Pulaski County (501) 686-8000

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 Alex Clausen's NPI number?

The NPI number for Alex Clausen is 1366021867. It was assigned to this individual provider in the NPPES registry on April 3, 2021.

Where is Alex Clausen located?

Alex Clausen practices at 4301 W Markham St # 641, Little Rock, AR 72205. The listed phone number is (501) 686-8000.

What is Alex Clausen's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

Is Alex Clausen enrolled in Medicare?

Yes. Alex Clausen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Alex Clausen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alex Clausen reassigns Medicare benefits to University Of Arkansas For Medical Sciences (Little Rock, AR). 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 Alex Clausen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alex Clausen accept?

Health plans from Arkansas Blue Cross and Blue Shield, Health Advantage and Octave list Alex Clausen 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 Alex Clausen was last updated on January 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.