DR. KEITH A KERSTEN D.O.
NPI 1861445108
Family Medicine in Hattiesburg, MS
About Dr. Keith A Kersten D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KEITH A KERSTEN D.O. (NPI 1861445108) is an individual family medicine provider in Hattiesburg, Mississippi, licensed in Mississippi (16793) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Hattiesburg, and is a graduate of Ohio University, College Of Osteopathic Medicine (1984).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 5
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. Keith A Kersten D.o. 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 Reassignments
9Medicare enrollment records show Keith Kersten reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Aberdeen, MS 39730
- Reassigned Medicare billing, Mississippi enrollment
- 168 clinicians in this Medicare group
Lubbock, TX 79401
- Reassigned Medicare billing, Louisiana enrollment
- 214 clinicians in this Medicare group
Covington, LA 70433
- Reassigned Medicare billing, Louisiana and Mississippi enrollments
- 133 clinicians in this Medicare group
Bay St Louis, MS 39520
- Reassigned Medicare billing, Mississippi enrollment
- 87 clinicians in this Medicare group
Hazlehurst, MS 39083
- Reassigned Medicare billing, Mississippi enrollment
- 159 clinicians in this Medicare group
Metairie, LA 70002
- Reassigned Medicare billing, Louisiana enrollment
- 209 clinicians in this Medicare group
Lubbock, TX 79401
- Reassigned Medicare billing, Louisiana enrollment
- 122 clinicians in this Medicare group
Picayune, MS 39466
- Reassigned Medicare billing, Mississippi enrollment
- Medicare enrollment name: Southeast Mississippi Rural Health Initiative, Inc.
- 62 clinicians in this Medicare group
Greensburg, LA 70441
- Reassigned Medicare billing, Louisiana enrollment
- Also billed through NPI 1588614036 (Louisiana)
- 39 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.
Areas of Expertise CMS Part B claims 16
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 39401 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HATTIESBURG, MS 39401
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 Keith Kersten's NPI number?
The NPI number for Keith Kersten is 1861445108. It was assigned to this individual provider in the NPPES registry on May 18, 2006.
Where is Keith Kersten located?
Keith Kersten practices at 123 S 27th Ave, Hattiesburg, MS 39401. The listed phone number is (601) 450-3030.
What is Keith Kersten's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Keith Kersten enrolled in Medicare?
Yes. Keith Kersten 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 organizations bill Medicare for Keith Kersten's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Keith Kersten reassigns Medicare benefits to 9 organizations: Boa Vida Hospital Of Aberdeen, Ms LLC (Aberdeen, MS), Concord Medical Group PLLC (Lubbock, TX), Correct Care, Inc. (Covington, LA), Hancock Emergency Group LLC (Bay St Louis, MS), Keystone Medical Services Of Ms, Inc (Hazlehurst, MS) and 4 more organizations, listed in the Medicare section above. Each 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 Keith Kersten's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Keith Kersten accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter of Alabama and Ambetter of Tennessee and 4 other insurers list Keith Kersten 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 Keith Kersten was last updated on September 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Dr. Keith A Kersten, D.O. · NPI 1861445108
Family Medicine physician in Hattiesburg, Mississippi. Individual provider, active in the CMS NPPES registry since May 18, 2006.
## Identity
- **NPI:** 1861445108 (Entity type: Individual)
- **Enumerated:** May 18, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 16793 (Mississippi)
- **Sole proprietor:** No
## Practice location
- **Address:** 123 S 27TH AVE, Hattiesburg, MS 39401-7136
- **Phone:** (601) 450-3030 · **Fax:** (601) 450-3031
## 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:** 9 organizations under Medicare reassignment (form CMS-855R): Boa Vida Hospital Of Aberdeen, Ms LLC (NPI 1467115279, Aberdeen, MS); Concord Medical Group PLLC (NPI 1083630610, Lubbock, TX); Correct Care, Inc. (NPI 1215987441, Covington, LA); Hancock Emergency Group LLC (NPI 1295142396, Bay St Louis, MS); Keystone Medical Services Of Ms, Inc (NPI 1174691059, Hazlehurst, MS); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Ohio University, College Of Osteopathic Medicine, class of 1984
## Record status
- **NPPES last updated:** September 14, 2025
- **Other identifiers:** Other P00718593 (MS); Other 4122846 (MS); Medicaid 1145459 (LA); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1861445108) · Data from the CMS NPPES public registry.