DERON JOHN HAMMACK DO
NPI 1194963769
Family Medicine in Lavalette, WV
About Deron John Hammack Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DERON JOHN HAMMACK DO (NPI 1194963769) is an individual family medicine provider in Lavalette, West Virginia, licensed in West Virginia (2487) and active in the NPI registry since February 2009. He is enrolled in Medicare PECOS and is a graduate of West Virginia School Of Osteopathic Medicine (2007).
NPPES Registry Identity
Specialties & Licenses 3
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
Deron John Hammack 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.
Medicare Billing Reassignment
Medicare enrollment records show Deron Hammack reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Gallipolis, OH 45631
- Reassigned Medicare billing, Ohio enrollment
- 321 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 25535 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Deron Hammack's NPI number?
The NPI number for Deron Hammack is 1194963769. It was assigned to this individual provider in the NPPES registry on February 4, 2009.
Where is Deron Hammack located?
Deron Hammack practices at 143 Beuhring St, Lavalette, WV 25535. The listed phone number is (304) 525-7272.
What is Deron Hammack's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Deron Hammack enrolled in Medicare?
Yes. Deron Hammack 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 Deron Hammack's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Deron Hammack reassigns Medicare benefits to Holzer Clinic, LLC (Gallipolis, 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 Deron Hammack's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Deron Hammack accept?
Health plans from Antidote Health Plan of Ohio, Inc. and CareSource list Deron Hammack 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 Deron Hammack was last updated on August 13, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Deron John Hammack, DO · NPI 1194963769
Family Medicine physician in Lavalette, West Virginia. Individual provider, active in the CMS NPPES registry since February 4, 2009.
## Identity
- **NPI:** 1194963769 (Entity type: Individual)
- **Enumerated:** February 4, 2009
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 2487 (West Virginia)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 143 BEUHRING ST, Lavalette, WV 25535-8706
- **Phone:** (304) 525-7272 · **Fax:** (304) 525-7272
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Holzer Clinic, LLC (NPI 1508817248, Gallipolis, OH), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** West Virginia School Of Osteopathic Medicine, class of 2007
## Record status
- **NPPES last updated:** August 13, 2010
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Source: [NPI Profile](https://npiprofile.com/npi/1194963769) · Data from the CMS NPPES public registry.