LAWRENCE J LEADER DO
NPI 1508970211
Internal Medicine - Cardiovascular Disease in Hattiesburg, MS
About Lawrence J Leader Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LAWRENCE J LEADER DO (NPI 1508970211) is an individual cardiovascular disease provider in Hattiesburg, Mississippi, licensed in Mississippi (14515) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with South Central Reg Med Ctr, and is a graduate of Nova Southeastern College Of Osteo Medicine (1988).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Lawrence J Leader Do 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
5Medicare enrollment records show Lawrence Leader reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Hattiesburg, MS 39401
- Reassigned Medicare billing, Mississippi enrollment
- 248 clinicians in this Medicare group
Hattiesburg, MS 39401
- Reassigned Medicare billing, Mississippi enrollment
- 696 clinicians in this Medicare group
Hattiesburg, MS 39401
- Reassigned Medicare billing, Mississippi enrollment
- 63 clinicians in this Medicare group
Taylorsville, MS 39168
- Reassigned Medicare billing, Mississippi enrollment
- 87 clinicians in this Medicare group
Tylertown, MS 39667
- Reassigned Medicare billing, Mississippi enrollment
- 34 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 30
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.
South Central Reg Med Ctr
Acute Care Hospitals · Laurel, MSForrest General Hospital
Acute Care Hospitals · Hattiesburg, MSMarion General Hospital
Acute Care Hospitals · Columbia, MSHighland Community Hospital
Acute Care Hospitals · Picayune, MSWalthall County General Hospital Cah
Critical Access Hospitals · Tylertown, MSPhysician 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Lawrence Leader's NPI number?
The NPI number for Lawrence Leader is 1508970211. It was assigned to this individual provider in the NPPES registry on August 18, 2006.
Where is Lawrence Leader located?
Lawrence Leader practices at 415 S 28th Ave, Hattiesburg, MS 39401. The listed phone number is (601) 268-5800.
What is Lawrence Leader's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Lawrence Leader enrolled in Medicare?
Yes. Lawrence Leader 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 Lawrence Leader's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lawrence Leader reassigns Medicare benefits to 5 organizations: Forrest County General Hospital (Hattiesburg, MS), Hattiesburg Clinic PA (Hattiesburg, MS), Fgh Physician Billing (Hattiesburg, MS), Magee Benevolent Association (Taylorsville, MS) and Walthall General Hospital (Tylertown, 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 Lawrence Leader's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lawrence Leader accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter of Alabama and Ambetter of Tennessee and 3 other insurers list Lawrence Leader 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 Lawrence Leader affiliated with any hospitals?
According to CMS data, Lawrence Leader is affiliated with South Central Reg Med Ctr, Forrest General Hospital, Marion General Hospital, Highland Community Hospital and Walthall County General Hospital Cah.
When was this NPI record last updated?
The NPPES record for Lawrence Leader was last updated on July 20, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.