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

DR. GAVEN MICHAEL HARPER DO
NPI 1003519430
Internal Medicine in Chillicothe, OH

Active since March 24, 2023PECOS EnrolledAccepts Medicare Assignment
272 HOSPITAL ROAD, SUITE 150, CHILLICOTHE, OH 45601(740) 779-8840(740) 779-8849 Get Directions Write a Review

NPPES record last updated: September 7, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 7, 2026, Aug 25, 2026, Aug 5, 2026 and 2 more (5 updates tracked since 2023).

About Dr. Gaven Michael Harper Do NPPES

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

DR. GAVEN MICHAEL HARPER DO (NPI 1003519430) is an individual internal medicine provider in Chillicothe, Ohio, licensed in Ohio (34.018295CTR) and active in the NPI registry since March 2023. He is enrolled in Medicare PECOS, is affiliated with Adena Regional Medical Center, and is a graduate of Ohio University, College Of Osteopathic Medicine (2023).

NPPES Registry Identity

NPI1003519430
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. GAVEN MICHAEL HARPERCredential: DO
Location Address272 HOSPITAL ROAD, SUITE 150Chillicothe, OH 45601-9031
Mailing Address272 Hospital Road, Suite 150Chillicothe, OH 45601-9031 · (740) 779-8840 · Fax (740) 779-8849
Fax(740) 779-8849
Sole ProprietorNo
Medical School CMSOhio University, College Of Osteopathic MedicineGraduated 2023
Enumeration DateMarch 24, 2023
Last NPPES UpdateSeptember 7, 20265 updates tracked since enumeration
NPPES CertifiedSeptember 7, 2026
✔ NPI 1003519430 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in OH · 34.018295CTR
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
272 HOSPITAL ROAD, Chillicothe, OH 45601

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

Dr. Gaven Michael Harper Do 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 ID5092175224
PECOS Enrollment IDI20260811001261
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 Gaven Harper reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Family Medicine
272 HOSPITAL RD
Chillicothe, OH 45601
  • Reassigned Medicare billing, Ohio enrollment
  • 763 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

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

Adena Regional Medical Center

Acute Care Hospitals · Chillicothe, OH
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360159
Location272 Hospital RoadChillicothe, OH 45601 · Ross County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 45601 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
$126.12 typical visit price
range $54.34 – $166.65
Typical copayment $31.53 (range $13.58 – $41.66)
Most-billed visit code 99204
Established Patient
$96.44 typical visit price
range $17.10 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
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 2

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

Physician Assistant
272 HOSPITAL ROAD
CHILLICOTHE, OH 45601
Family Medicine
272 HOSPITAL ROAD, ADENA HEALTH SYSTEMS
CHILLICOTHE, OH 45601

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 Gaven Harper's NPI number?

The NPI number for Gaven Harper is 1003519430. It was assigned to this individual provider in the NPPES registry on March 24, 2023.

Where is Gaven Harper located?

Gaven Harper practices at 272 Hospital Road Suite 150, Chillicothe, OH 45601. The listed phone number is (740) 779-8840.

What is Gaven Harper's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Gaven Harper enrolled in Medicare?

Yes. Gaven Harper 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 Gaven Harper's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gaven Harper reassigns Medicare benefits to Adena Medical Group LLC (Chillicothe, OH). 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 Gaven Harper's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gaven Harper accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and Oscar Health Insurance list Gaven Harper 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 Gaven Harper affiliated with any hospitals?

According to CMS data, Gaven Harper is affiliated with Adena Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Gaven Harper was last updated on September 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 50 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.