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DR. WILLIAM EVERETT CLEMENTSON D.O.
NPI 1356528046
Emergency Medicine in Austin, TX

Active since January 25, 2008PECOS Enrolled
8701 SHOAL CREEK BLVD STE 401, AUSTIN, TX 78757(737) 212-8181 Get Directions Write a Review

NPPES record last updated: December 22, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. William Everett Clementson D.o. NPPES

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

DR. WILLIAM EVERETT CLEMENTSON D.O. (NPI 1356528046) is an individual emergency medicine provider in Austin, Texas, licensed in Texas (N9689) and active in the NPI registry since January 2008. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1356528046
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. WILLIAM EVERETT CLEMENTSONCredential: D.O.
Location Address8701 SHOAL CREEK BLVD STE 401Austin, TX 78757-6809
Mailing Address8701 Shoal Creek Blvd Ste 401Austin, TX 78757-6809 · (737) 212-8181
Phone(737) 212-8181
Sole ProprietorYes
Enumeration DateJanuary 25, 2008
Last NPPES UpdateDecember 22, 2023
NPPES CertifiedDecember 22, 2023
✔ NPI 1356528046 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in TX · N9689
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
8701 SHOAL CREEK BLVD STE 401, Austin, TX 78757
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Oscar Insurance Company, UnitedHealthcare.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. William Everett Clementson D.o. 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 William Clementson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Emergency Medicine Services Of Tx, PLLC
78 mi
Emergency Medicine
7700 FLOYD CURL DR
San Antonio, TX 78229
  • Reassigned Medicare billing, Texas enrollment
  • 1,452 clinicians in this Medicare group
NPI 1245938729 (210) 575-4000

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 3

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
85 services85 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
31 services31 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
20 services20 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78757 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
$89.03 typical visit price
range $57.88 – $174.00
Typical copayment $22.25 (range $14.47 – $43.50)
Most-billed visit code 99203
Established Patient
$101.65 typical visit price
range $18.88 – $142.23
Typical copayment $25.41 (range $4.72 – $35.55)
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.

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 William Clementson's NPI number?

The NPI number for William Clementson is 1356528046. It was assigned to this individual provider in the NPPES registry on January 25, 2008.

Where is William Clementson located?

William Clementson practices at 8701 Shoal Creek Blvd Ste 401, Austin, TX 78757. The listed phone number is (737) 212-8181.

What is William Clementson's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is William Clementson enrolled in Medicare?

Yes. William Clementson is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for William Clementson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Clementson reassigns Medicare benefits to Emergency Medicine Services Of Tx, PLLC (San Antonio, 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 William Clementson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Clementson accept?

Health plans from Blue Cross and Blue Shield of Texas, Oscar Insurance Company and UnitedHealthcare list William Clementson 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 William Clementson was last updated on December 22, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.