DR. JENNIFER RENEE HAMM MD
NPI 1477294320
Internal Medicine in Austell, GA
About Dr. Jennifer Renee Hamm Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JENNIFER RENEE HAMM MD (NPI 1477294320) is an individual internal medicine provider in Austell, Georgia, licensed in Georgia (104443) and active in the NPI registry since April 2022. She is enrolled in Medicare PECOS, is affiliated with Wellstar Cobb Medical Center, and is a graduate of Other (2022).
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
Dr. Jennifer Renee Hamm 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 Jennifer Hamm reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Austell, GA 30106
- Reassigned Medicare billing, Georgia enrollment
- 3,885 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Wellstar Cobb Medical Center
Acute Care Hospitals · Austell, GAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 30106 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 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
AUSTELL, GA 30106
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 Hamm's NPI number?
The NPI number for Jennifer Hamm is 1477294320. It was assigned to this individual provider in the NPPES registry on April 5, 2022. The provider is also known as Miss Jennifer Renee Johnson.
Where is Jennifer Hamm located?
Jennifer Hamm practices at 1790 Mulkey Rd Ste 510, Austell, GA 30106. The listed phone number is (470) 267-2000.
What is Jennifer Hamm's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Jennifer Hamm enrolled in Medicare?
Yes. Jennifer Hamm 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 Jennifer Hamm's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jennifer Hamm reassigns Medicare benefits to Wellstar Medical Group, LLC (Austell, GA). 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 Jennifer Hamm's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jennifer Hamm accept?
Health plans from Alliant Health Plans, Inc., Ambetter Health, Ambetter from Absolute Total Care, Ambetter of Alabama and Ambetter of North Carolina and 2 other insurers list Jennifer Hamm 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 Hamm affiliated with any hospitals?
According to CMS data, Jennifer Hamm is affiliated with Wellstar Cobb Medical Center.
When was this NPI record last updated?
The NPPES record for Jennifer Hamm was last updated on June 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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.
# Dr. Jennifer Renee Hamm, MD · NPI 1477294320
Internal Medicine physician in Austell, Georgia. Individual provider, active in the CMS NPPES registry since April 5, 2022.
## Identity
- **NPI:** 1477294320 (Entity type: Individual)
- **Enumerated:** April 5, 2022
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 104443 (Georgia)
- **Sole proprietor:** No
## Practice location
- **Address:** 1790 MULKEY RD STE 510, Austell, GA 30106-1122
- **Phone:** (470) 267-2000
## 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:** Wellstar Medical Group, LLC (NPI 1295031839, Austell, GA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** June 25, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1477294320) · Data from the CMS NPPES public registry.