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

CLAY OWEN THORNBURG NP
NPI 1710596424
Nurse Practitioner - Adult Health in Hannibal, MO

Active since July 28, 2020PECOS EnrolledAccepts Medicare Assignment
100 MEDICAL DR, HANNIBAL, MO 63401(573) 221-5250(573) 231-3713 Get Directions Write a Review

NPPES record last updated: September 28, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 28, 2026, Jul 25, 2022, Oct 4, 2021 and 1 more (4 updates tracked since 2020).

About Clay Owen Thornburg Np NPPES

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

CLAY OWEN THORNBURG NP (NPI 1710596424) is an individual adult health provider in Hannibal, Missouri, licensed in Missouri (2020023348) and active in the NPI registry since July 2020. He is enrolled in Medicare PECOS, is affiliated with Blessing Hospital, and maintains a secondary practice location in Palmyra.

NPPES Registry Identity

NPI1710596424
Entity TypeIndividualMale
Primary Taxonomy363LA2200X
Provider Legal NameCLAY OWEN THORNBURGCredential: NP
Location Address100 MEDICAL DRHannibal, MO 63401-6877
Mailing Address1005 Broadway StQuincy, IL 62301-2834 · (217) 223-8400 · Fax (217) 277-3960
Fax(573) 231-3713
Sole ProprietorYes
Medical School CMSOtherGraduated 2020
Enumeration DateJuly 28, 2020
Last NPPES UpdateSeptember 28, 20264 updates tracked since enumeration
NPPES CertifiedSeptember 28, 2026
✔ NPI 1710596424 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
License✔ Licensed in MO · 2020023348
100 MEDICAL DR, Hannibal, MO 63401

Secondary Practice Location 1

Location 1602 S Home StPalmyra, MO 63461-1747 · Phone (573) 822-8530 ext. 57382

Accepted 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

Clay Owen Thornburg Np 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 ID3274818455
PECOS Enrollment IDI20220325001979
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 Clay Thornburg reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Hospitalist
6000 HOSPITAL DR
Hannibal, MO 63401
  • Reassigned Medicare billing, Missouri enrollment
  • 192 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.

Hospital Affiliations CMS Care Compare 2

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

Blessing Hospital

Acute Care Hospitals · Quincy, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140015
Location1005 Broadway StQuincy, IL 62301 · Adams County
Emergency services Birthing friendly

Hannibal Regional Hospital

Acute Care Hospitals · Hannibal, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number260025
Location6000 Hospital DrHannibal, MO 63401 · Marion County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63401 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
$81.64 typical visit price
range $52.28 – $161.24
Typical copayment $20.41 (range $13.07 – $40.31)
Most-billed visit code 99203
Established Patient
$93.24 typical visit price
range $16.30 – $131.05
Typical copayment $23.31 (range $4.07 – $32.76)
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 20

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

Pharmacy (Community/Retail Pharmacy)
100 MEDICAL DR
HANNIBAL, MO 63401
Nurse Practitioner (Family)
100 MEDICAL DR
HANNIBAL, MO 63401
Counselor (Professional)
100 MEDICAL DR
HANNIBAL, MO 63401
Nurse Practitioner (Family)
100 MEDICAL DR
HANNIBAL, MO 63401
Counselor (Professional)
100 MEDICAL DR
HANNIBAL, MO 63401
Nurse Practitioner (Adult Health)
100 MEDICAL DR
HANNIBAL, MO 63401
Internal Medicine
100 MEDICAL DR
HANNIBAL, MO 63401
Surgery
100 MEDICAL DR
HANNIBAL, MO 63401

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 Clay Thornburg's NPI number?

The NPI number for Clay Thornburg is 1710596424. It was assigned to this individual provider in the NPPES registry on July 28, 2020.

Where is Clay Thornburg located?

Clay Thornburg practices at 100 Medical Dr, Hannibal, MO 63401. The listed phone number is (573) 221-5250.

What is Clay Thornburg's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Clay Thornburg enrolled in Medicare?

Yes. Clay Thornburg 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 organization bills Medicare for Clay Thornburg's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Clay Thornburg reassigns Medicare benefits to Blessing Hospital (Hannibal, MO). 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 Clay Thornburg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Clay Thornburg accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 2 other insurers list Clay Thornburg 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 Clay Thornburg affiliated with any hospitals?

According to CMS data, Clay Thornburg is affiliated with Blessing Hospital and Hannibal Regional Hospital.

When was this NPI record last updated?

The NPPES record for Clay Thornburg was last updated on September 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 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.