JENNIFER HOLDEN ALLEYN M.D.
NPI 1164702825
Emergency Medicine in Jackson, MS
About Jennifer Holden Alleyn M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JENNIFER HOLDEN ALLEYN M.D. (NPI 1164702825) is an individual emergency medicine provider in Jackson, Mississippi, licensed in Mississippi (822-L) and active in the NPI registry since August 2011. She is enrolled in Medicare PECOS, is affiliated with West Jefferson Medical Center, and is a graduate of Other (2011).
NPPES Registry Identity
Specialties & Licenses
Other Names 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
Jennifer Holden Alleyn 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
7Medicare enrollment records show Jennifer Alleyn reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bogalusa, LA 70427
- Reassigned Medicare billing, Louisiana enrollment
- 4,559 clinicians in this Medicare group
Baton Rouge, LA 70806
- Reassigned Medicare billing, Louisiana enrollment
- 112 clinicians in this Medicare group
Kenner, LA 70065
- Reassigned Medicare billing, Louisiana enrollment
- 181 clinicians in this Medicare group
Metairie, LA 70001
- Reassigned Medicare billing, Louisiana enrollment
- 114 clinicians in this Medicare group
New Orleans, LA 70115
- Reassigned Medicare billing, Louisiana enrollment
- 240 clinicians in this Medicare group
Marrero, LA 70072
- Reassigned Medicare billing, Louisiana enrollment
- 291 clinicians in this Medicare group
Lufkin, TX 75904
- Reassigned Medicare billing, Louisiana enrollment
- 101 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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
West Jefferson Medical Center
Acute Care Hospitals · Marrero, LASlidell Memorial Hospital
Acute Care Hospitals · Slidell, LAEast Jefferson General Hospital
Acute Care Hospitals · Metairie, LAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 39216 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.
JACKSON, MS 39216
JACKSON, MS 39216
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 Jennifer Alleyn's NPI number?
The NPI number for Jennifer Alleyn is 1164702825. It was assigned to this individual provider in the NPPES registry on August 25, 2011. The provider is also known as Jennifer Leigh Holden M.D..
Where is Jennifer Alleyn located?
Jennifer Alleyn practices at 2500 N State St, Jackson, MS 39216. The listed phone number is (601) 984-5582.
What is Jennifer Alleyn's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Jennifer Alleyn enrolled in Medicare?
Yes. Jennifer Alleyn 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 Jennifer Alleyn's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jennifer Alleyn reassigns Medicare benefits to 7 organizations: Ochsner Clinic LLC (Bogalusa, LA), Red Stick Emergency Group LLC (Baton Rouge, LA), Kenner Emergency Group LLC (Kenner, LA), Independence Emergency Group LLC (Metairie, LA), Belle Chasse Emergency Group LLC (New Orleans, LA) and 2 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 Jennifer Alleyn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jennifer Alleyn accept?
Health plans from CHRISTUS Health Plan and HMO Louisiana list Jennifer Alleyn 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 Jennifer Alleyn affiliated with any hospitals?
According to CMS data, Jennifer Alleyn is affiliated with West Jefferson Medical Center, Slidell Memorial Hospital and East Jefferson General Hospital.
When was this NPI record last updated?
The NPPES record for Jennifer Alleyn was last updated on March 17, 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.
# Jennifer Holden Alleyn, M.D. · NPI 1164702825
Emergency Medicine physician in Jackson, Mississippi. Individual provider, active in the CMS NPPES registry since August 25, 2011.
## Identity
- **NPI:** 1164702825 (Entity type: Individual)
- **Enumerated:** August 25, 2011
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 822-L (Mississippi)
- **Sole proprietor:** No
## Practice location
- **Address:** 2500 N STATE ST, Jackson, MS 39216-4500
- **Phone:** (601) 984-5582 · **Fax:** (601) 984-5583
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Ochsner Clinic LLC (NPI 1366797110, Bogalusa, LA); Red Stick Emergency Group LLC (NPI 1275705998, Baton Rouge, LA); Kenner Emergency Group LLC (NPI 1013986546, Kenner, LA); Independence Emergency Group LLC (NPI 1528384773, Metairie, LA); Belle Chasse Emergency Group LLC (NPI 1851714075, New Orleans, LA); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** March 17, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1164702825) · Data from the CMS NPPES public registry.