DR. MARK KIRK JR.
NPI 1477180107
Internal Medicine in Dothan, AL
About Dr. Mark Kirk Jr. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK KIRK JR. (NPI 1477180107) is an individual internal medicine provider in Dothan, Alabama, licensed in Alabama (54042) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with St Joseph Regional Medical Center, and maintains 6 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 6
Group Practice 1
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. Mark Kirk Jr. 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
12Medicare enrollment records show Mark Kirk reassigns Medicare billing to 12 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Dothan, AL 36305
- Reassigned Medicare billing, Alabama enrollment
- 252 clinicians in this Medicare group
Gadsden, AL 35903
- Reassigned Medicare billing, Alabama enrollment
- 114 clinicians in this Medicare group
Hattiesburg, MS 39402
- Reassigned Medicare billing, Mississippi enrollment
- 50 clinicians in this Medicare group
Natchez, MS 39120
- Reassigned Medicare billing, Mississippi enrollment
- 68 clinicians in this Medicare group
Dallas, TX 75244
- Reassigned Medicare billing, Arizona and Idaho enrollments
- 556 clinicians in this Medicare group
Dallas, TX 75244
- Reassigned Medicare billing, Montana and North Carolina enrollments
- 75 clinicians in this Medicare group
Princeton, NJ 08540
- Reassigned Medicare billing, New Jersey enrollment
- 421 clinicians in this Medicare group
East Orange, NJ 07018
- Reassigned Medicare billing, New Jersey enrollment
- 125 clinicians in this Medicare group
Bohemia, NY 11716
- Reassigned Medicare billing, New York enrollment
- 754 clinicians in this Medicare group
Show Low, AZ 85901
- Reassigned Medicare billing, Arizona enrollment
- 117 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 4
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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Joseph Regional Medical Center
Acute Care Hospitals · Lewiston, IDClearwater Valley Hospital & Clinics
Critical Access Hospitals · Orofino, IDCentrastate Medical Center
Acute Care Hospitals · Freehold, NJTri-State Memorial Hospital
Critical Access Hospitals · Clarkston, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 36305 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DOTHAN, AL 36305
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 Mark Kirk's NPI number?
The NPI number for Mark Kirk is 1477180107. It was assigned to this individual provider in the NPPES registry on March 24, 2020.
Where is Mark Kirk located?
Mark Kirk practices at 4370 W Main St, Dothan, AL 36305. The listed phone number is (334) 793-5000.
What is Mark Kirk's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Mark Kirk enrolled in Medicare?
Yes. Mark Kirk 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 Mark Kirk's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Kirk reassigns Medicare benefits to 12 organizations: Flowers Hb Medical Services LLC (Dothan, AL), Gadsden Hb Medical Services LLC (Gadsden, AL), Hattiesburg Hb Medical Services LLC (Hattiesburg, MS), Natchez Hb Medical Services LLC (Natchez, MS), Signify Health, LLC (Dallas, TX) and 7 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 Mark Kirk's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Kirk accept?
Health plans from Blue Cross Blue Shield of Arizona and CareSource list Mark Kirk 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 Mark Kirk affiliated with any hospitals?
According to CMS data, Mark Kirk is affiliated with St Joseph Regional Medical Center, Clearwater Valley Hospital & Clinics, Centrastate Medical Center and Tri-State Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Mark Kirk was last updated on June 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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. Mark Kirk Jr. · NPI 1477180107
Internal Medicine physician in Dothan, Alabama. Individual provider, active in the CMS NPPES registry since March 24, 2020.
## Identity
- **NPI:** 1477180107 (Entity type: Individual)
- **Enumerated:** March 24, 2020
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 54042 (Alabama)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 4370 W MAIN ST, Dothan, AL 36305-1056
- **Phone:** (334) 793-5000 · **Fax:** (659) 235-6176
## 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:** 12 organizations under Medicare reassignment (form CMS-855R): Flowers Hb Medical Services LLC (NPI 1972283828, Dothan, AL); Gadsden Hb Medical Services LLC (NPI 1750061610, Gadsden, AL); Hattiesburg Hb Medical Services LLC (NPI 1699456376, Hattiesburg, MS); Natchez Hb Medical Services LLC (NPI 1770264459, Natchez, MS); Signify Health, LLC (NPI 1689158487, Dallas, TX); and 7 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** June 16, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1477180107) · Data from the CMS NPPES public registry.