JAMES SIMEON ADAMS NEILL MD
NPI 1912987819
Pathology - Anatomic Pathology & Clinical Pathology in Brandon, MS
About James Simeon Adams Neill Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JAMES SIMEON ADAMS NEILL MD (NPI 1912987819) is an individual anatomic pathology & clinical pathology provider in Brandon, Mississippi, licensed in Mississippi (08398) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Merit Health River Region, and is a graduate of Other (1978).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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
James Simeon Adams Neill Md 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
2Medicare enrollment records show James Neill reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Jackson, MS 39216
- Reassigned Medicare billing, Mississippi enrollment
- 1,932 clinicians in this Medicare group
Hattiesburg, MS 39402
- Reassigned Medicare billing, Mississippi enrollment
- 20 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 20
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Merit Health River Region
Acute Care Hospitals · Vicksburg, MSMerit Health Natchez
Acute Care Hospitals · Natchez, MSMerit Health Wesley
Acute Care Hospitals · Hattiesburg, MSMerit Health Women's Hospital
Acute Care Hospitals · Flowood, MSMerit Health River Oaks
Acute Care Hospitals · Flowood, MSPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 39042 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 James Neill's NPI number?
The NPI number for James Neill is 1912987819. It was assigned to this individual provider in the NPPES registry on January 18, 2006.
Where is James Neill located?
James Neill practices at 106 Easthaven Dr, Brandon, MS 39042. The listed phone number is (601) 984-1530.
What is James Neill's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.
Is James Neill enrolled in Medicare?
Yes. James Neill 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 James Neill's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Neill reassigns Medicare benefits to 2 organizations: State Of Mississippi - University Of Mississippi Medical Center (Jackson, MS) and Hub Care Pathology, P.A. (Hattiesburg, MS). 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 James Neill's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does James Neill accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter of Alabama and Ambetter of Tennessee and 2 other insurers list James Neill 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 James Neill affiliated with any hospitals?
According to CMS data, James Neill is affiliated with Merit Health River Region, Merit Health Natchez, Merit Health Wesley, Merit Health Women's Hospital and Merit Health River Oaks.
When was this NPI record last updated?
The NPPES record for James Neill was last updated on September 6, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# James Simeon Adams Neill, MD · NPI 1912987819
Anatomic Pathology & Clinical Pathology physician in Brandon, Mississippi. Individual provider, active in the CMS NPPES registry since January 18, 2006.
## Identity
- **NPI:** 1912987819 (Entity type: Individual)
- **Enumerated:** January 18, 2006
- **Primary specialty:** Pathology - Anatomic Pathology & Clinical Pathology · taxonomy 207ZP0102X
- **State license:** 08398 (Mississippi)
- **Sole proprietor:** No
## Practice location
- **Address:** 106 EASTHAVEN DR, Brandon, MS 39042-2825
- **Phone:** (601) 984-1530 · **Fax:** (601) 984-1531
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): State Of Mississippi - University Of Mississippi Medical Center (NPI 1477734689, Jackson, MS); Hub Care Pathology, P.A. (NPI 1043324767, Hattiesburg, MS) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1978
## Record status
- **NPPES last updated:** September 6, 2022
- **Other identifiers:** Medicaid 06172073 (MS); Other P01402418 (MS)
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Source: [NPI Profile](https://npiprofile.com/npi/1912987819) · Data from the CMS NPPES public registry.