GREGG ANAZIA
NPI 1497045512
Hospitalist in Hattiesburg, MS
About Gregg Anazia NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGG ANAZIA (NPI 1497045512) is an individual hospitalist provider in Hattiesburg, Mississippi, licensed in South Carolina (37211) and active in the NPI registry since April 2011. He is enrolled in Medicare PECOS, is affiliated with South Central Reg Med Ctr, and maintains a secondary practice location in Columbia.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Gregg Anazia 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
4Medicare enrollment records show Gregg Anazia reassigns Medicare billing to 4 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
- 696 clinicians in this Medicare group
Gulfport, MS 39503
- Reassigned Medicare billing, Mississippi enrollment
- 298 clinicians in this Medicare group
Ocean Springs, MS 39564
- Reassigned Medicare billing, Mississippi enrollment
- 450 clinicians in this Medicare group
Columbia, SC 29212
- Reassigned Medicare billing, South Carolina enrollment
- 1,466 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 7
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.
South Central Reg Med Ctr
Acute Care Hospitals · Laurel, MSForrest General Hospital
Acute Care Hospitals · Hattiesburg, MSPrisma Health Tuomey Hospital
Acute Care Hospitals · Sumter, SCPhysician 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.
Referred Medical Equipment & Supplies CMS DME claims 4
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Gregg Anazia's NPI number?
The NPI number for Gregg Anazia is 1497045512. It was assigned to this individual provider in the NPPES registry on April 10, 2011.
Where is Gregg Anazia located?
Gregg Anazia practices at 415 S 28th Ave, Hattiesburg, MS 39401. The listed phone number is (601) 288-4329.
What is Gregg Anazia's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Gregg Anazia enrolled in Medicare?
Yes. Gregg Anazia 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 Gregg Anazia's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregg Anazia reassigns Medicare benefits to 4 organizations: Hattiesburg Clinic PA (Hattiesburg, MS), Singing River Gulfport (Gulfport, MS), Singing River Health System (Ocean Springs, MS) and Prisma Health Medical Group-Midlands (Columbia, SC). 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 Gregg Anazia's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregg Anazia accept?
Health plans from Blue Cross and Blue Shield of Alabama, Cigna Healthcare and Oscar Health Plan, Inc. list Gregg Anazia 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 Gregg Anazia affiliated with any hospitals?
According to CMS data, Gregg Anazia is affiliated with South Central Reg Med Ctr, Forrest General Hospital and Prisma Health Tuomey Hospital.
When was this NPI record last updated?
The NPPES record for Gregg Anazia was last updated on March 26, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Gregg Anazia · NPI 1497045512
Hospitalist physician in Hattiesburg, Mississippi. Individual provider, active in the CMS NPPES registry since April 10, 2011.
## Identity
- **NPI:** 1497045512 (Entity type: Individual)
- **Enumerated:** April 10, 2011
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 37211 (South Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 415 S 28TH AVE, Hattiesburg, MS 39401-7246
- **Phone:** (601) 288-4329 · **Fax:** (601) 579-5240
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Hattiesburg Clinic PA (NPI 1043392459, Hattiesburg, MS); Singing River Gulfport (NPI 1063133833, Gulfport, MS); Singing River Health System (NPI 1053528109, Ocean Springs, MS); Prisma Health Medical Group-Midlands (NPI 1003307166, Columbia, SC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Creighton University School Of Medicine, class of 2011
## Record status
- **NPPES last updated:** March 26, 2021
- **Other identifiers:** Medicaid 372117 (SC); Medicaid 00188566 (MS)
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Source: [NPI Profile](https://npiprofile.com/npi/1497045512) · Data from the CMS NPPES public registry.