MARK HILL MCINNIS M.D.
NPI 1427239953
Emergency Medicine in Saint Gabriel, LA
About Mark Hill Mcinnis M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK HILL MCINNIS M.D. (NPI 1427239953) is an individual emergency medicine provider in Saint Gabriel, Louisiana, licensed in Louisiana (204172) and active in the NPI registry since November 2007. He is enrolled in Medicare PECOS, is affiliated with Iberia Medical Center, and is a graduate of Other (2005).
NPPES Registry Identity
Specialties & Licenses
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
Mark Hill Mcinnis M.d. 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
8Medicare enrollment records show Mark Mcinnis reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baton Rouge, LA 70806
- Reassigned Medicare billing, Louisiana enrollment
- 112 clinicians in this Medicare group
La Place, LA 70068
- Reassigned Medicare billing, Louisiana enrollment
- 120 clinicians in this Medicare group
Morgan City, LA 70380
- Reassigned Medicare billing, Louisiana enrollment
- 95 clinicians in this Medicare group
New Iberia, LA 70560
- Reassigned Medicare billing, Louisiana enrollment
- 89 clinicians in this Medicare group
New Iberia, LA 70560
- Reassigned Medicare billing, Louisiana enrollment
- 83 clinicians in this Medicare group
Lafayette, LA 70503
- Reassigned Medicare billing, Louisiana enrollment
- 87 clinicians in this Medicare group
Natchez, MS 39120
- Reassigned Medicare billing, Mississippi enrollment
- 68 clinicians in this Medicare group
Bay St Louis, MS 39520
- Reassigned Medicare billing, Mississippi enrollment
- 87 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Iberia Medical Center
Acute Care Hospitals · New Iberia, LAOchsner Medical Center-Hancock
Acute Care Hospitals · Bay Saint Louis, MSPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 70776 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 Mark Mcinnis's NPI number?
The NPI number for Mark Mcinnis is 1427239953. It was assigned to this individual provider in the NPPES registry on November 27, 2007.
Where is Mark Mcinnis located?
Mark Mcinnis practices at 5775 Bayou Paul Rd, Saint Gabriel, LA 70776. The listed phone number is (225) 255-4922.
What is Mark Mcinnis's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Mark Mcinnis enrolled in Medicare?
Yes. Mark Mcinnis 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 Mcinnis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Mcinnis reassigns Medicare benefits to 8 organizations: Red Stick Emergency Group LLC (Baton Rouge, LA), St. John Emergency Group LLC (La Place, LA), St Mary Emergency Group LLC (Morgan City, LA), Main Street Emergency Group LLC (New Iberia, LA), Parish State Emergency Physicians LLC (New Iberia, LA) and 3 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 Mcinnis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Mcinnis accept?
Health plans from CHRISTUS Health Plan list Mark Mcinnis 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 Mcinnis affiliated with any hospitals?
According to CMS data, Mark Mcinnis is affiliated with Iberia Medical Center and Ochsner Medical Center-Hancock.
When was this NPI record last updated?
The NPPES record for Mark Mcinnis was last updated on January 18, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Mark Hill Mcinnis, M.D. · NPI 1427239953
Emergency Medicine physician in Saint Gabriel, Louisiana. Individual provider, active in the CMS NPPES registry since November 27, 2007.
## Identity
- **NPI:** 1427239953 (Entity type: Individual)
- **Enumerated:** November 27, 2007
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 204172 (Louisiana)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 5775 BAYOU PAUL RD, Saint Gabriel, LA 70776-5109
- **Phone:** (225) 255-4922
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Red Stick Emergency Group LLC (NPI 1275705998, Baton Rouge, LA); St. John Emergency Group LLC (NPI 1265401509, La Place, LA); St Mary Emergency Group LLC (NPI 1235108499, Morgan City, LA); Main Street Emergency Group LLC (NPI 1750796041, New Iberia, LA); Parish State Emergency Physicians LLC (NPI 1023832870, New Iberia, LA); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2005
## Record status
- **NPPES last updated:** January 18, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1427239953) · Data from the CMS NPPES public registry.