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

Active since March 24, 2023PECOS Enrolled
4439 STATE ROUTE 159 STE 150, CHILLICOTHE, OH 45601(740) 779-7070(740) 779-8449 Get Directions Write a Review

NPPES record last updated: December 2, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 2, 2025, Mar 24, 2023 (2 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 (34.018295) and active in the NPI registry since March 2023. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1003519430
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. GAVEN MICHAEL HARPERCredential: DO
Location Address4439 STATE ROUTE 159 STE 150Chillicothe, OH 45601-7833
Mailing Address4439 State Route 159 Ste 150Chillicothe, OH 45601-7833 · (740) 779-7070 · Fax (740) 779-8449
Phone(740) 779-7070
Fax(740) 779-8449
Sole ProprietorNo
Enumeration DateMarch 24, 2023
Last NPPES UpdateDecember 2, 20252 updates tracked since enumeration
NPPES CertifiedDecember 2, 2025
✔ 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 · 34.018295
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.
4439 STATE ROUTE 159 STE 150, Chillicothe, OH 45601
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gaven Michael Harper Do 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.

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 20

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

COURTNEY E LITTLE D.O.
Internal Medicine
4439 STATE ROUTE 159 STE 150
CHILLICOTHE, OH 45601
Ross County (740) 779-8840
TRACI A POWELL NP
Nurse Practitioner
4439 STATE ROUTE 159 STE 150
CHILLICOTHE, OH 45601
Ross County (740) 779-8728
COLLINS OKOLIE M.D.
Internal Medicine
4439 STATE ROUTE 159 STE 150
CHILLICOTHE, OH 45601
Ross County (740) 779-4700
BEVERLY G TOLLE NP
Nurse Practitioner (Adult Health)
4439 STATE ROUTE 159 STE 150
CHILLICOTHE, OH 45601
Ross County (740) 779-8840
LING LIN DO
Internal Medicine
4439 STATE ROUTE 159 STE 150
CHILLICOTHE, OH 45601
Ross County (740) 779-7070
DR. TIMOTHY SCOTT DEAN JR. DO
Internal Medicine
4439 STATE ROUTE 159 STE 150
CHILLICOTHE, OH 45601
Ross County (740) 779-7070
DR. JUANITO E SAVAILLE D.O.
Internal Medicine
4439 STATE ROUTE 159 STE 150
CHILLICOTHE, OH 45601
Ross County (740) 779-8840
JAVERIA NAJAM MD
Internal Medicine
4439 STATE ROUTE 159 STE 150
CHILLICOTHE, OH 45601
Ross County (740) 779-7070

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 4439 State Route 159 Ste 150, Chillicothe, OH 45601. The listed phone number is (740) 779-7070.

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 enrollment system.

When was this NPI record last updated?

The NPPES record for Gaven Harper was last updated on December 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.