ALI SHAHSHAHAN MD
NPI 1255391728
Hospitalist in Hattiesburg, MS
About Ali Shahshahan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALI SHAHSHAHAN MD (NPI 1255391728) is an individual hospitalist provider in Hattiesburg, Mississippi, licensed in Mississippi (19503) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with South Central Reg Med Ctr, and is a graduate of University Of Iowa, Rj & L Carver College Of Medicine (2001).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
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
Ali Shahshahan 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 Reassignment
Medicare enrollment records show Ali Shahshahan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Hattiesburg, MS 39401
- Reassigned Medicare billing, Mississippi enrollment
- 696 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 5
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, MSWayne General Hospital
Acute Care Hospitals · Waynesboro, MSForrest General Hospital
Acute Care Hospitals · Hattiesburg, MSMarion General Hospital
Acute Care Hospitals · Columbia, MSCovington County Hospital Cah
Critical Access Hospitals · Collins, 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 Ali Shahshahan's NPI number?
The NPI number for Ali Shahshahan is 1255391728. It was assigned to this individual provider in the NPPES registry on March 27, 2006.
Where is Ali Shahshahan located?
Ali Shahshahan practices at 415 S 28th Ave, Hattiesburg, MS 39401. The listed phone number is (601) 288-4329.
What is Ali Shahshahan's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Ali Shahshahan enrolled in Medicare?
Yes. Ali Shahshahan 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 organization bills Medicare for Ali Shahshahan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ali Shahshahan reassigns Medicare benefits to Hattiesburg Clinic PA (Hattiesburg, MS). The 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 Ali Shahshahan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ali Shahshahan accept?
Health plans from Cigna Healthcare list Ali Shahshahan 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 Ali Shahshahan affiliated with any hospitals?
According to CMS data, Ali Shahshahan is affiliated with South Central Reg Med Ctr, Wayne General Hospital, Forrest General Hospital, Marion General Hospital and Covington County Hospital Cah.
When was this NPI record last updated?
The NPPES record for Ali Shahshahan was last updated on August 23, 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.
# Ali Shahshahan, MD · NPI 1255391728
Hospitalist physician in Hattiesburg, Mississippi. Individual provider, active in the CMS NPPES registry since March 27, 2006.
## Identity
- **NPI:** 1255391728 (Entity type: Individual)
- **Enumerated:** March 27, 2006
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 19503 (Mississippi)
- **Sole proprietor:** No
## Practice location
- **Address:** 415 S 28TH AVE, Hattiesburg, MS 39401-7246
- **Phone:** (601) 288-4329 · **Fax:** (601) 288-3191
## 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:** Hattiesburg Clinic PA (NPI 1043392459, Hattiesburg, MS), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Iowa, Rj & L Carver College Of Medicine, class of 2001
## Record status
- **NPPES last updated:** August 23, 2016
- **Other identifiers:** Other P00368680 (MS); Medicare UPIN 120616 (MS); Medicaid 01739283 (MS); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1255391728) · Data from the CMS NPPES public registry.