DR. ALEXIS GERBER M.D.
NPI 1174990451
Internal Medicine in Philadelphia, PA
About Dr. Alexis Gerber M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALEXIS GERBER M.D. (NPI 1174990451) is an individual internal medicine provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD464725) and active in the NPI registry since August 2015. She is enrolled in Medicare PECOS, is affiliated with Thomas Jefferson University Hospital, and maintains a secondary practice location in Jersey City.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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. Alexis Gerber M.d. 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 Alexis Gerber reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Philadelphia, PA 19107
- Reassigned Medicare billing, Pennsylvania enrollment
- 1,739 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 4
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Thomas Jefferson University Hospital
Acute Care Hospitals · Philadelphia, PASt Mary Medical Center
Acute Care Hospitals · Langhorne, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19107 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.
PHILADELPHIA, PA 19107
PHILADELPHIA, PA 19107
PHILADELPHIA, PA 19107
PHILADELPHIA, PA 19107
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 Alexis Gerber's NPI number?
The NPI number for Alexis Gerber is 1174990451. It was assigned to this individual provider in the NPPES registry on August 21, 2015.
Where is Alexis Gerber located?
Alexis Gerber practices at 111 S 11th St, Philadelphia, PA 19107. The listed phone number is (215) 955-8900.
What is Alexis Gerber's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Alexis Gerber enrolled in Medicare?
Yes. Alexis Gerber 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 Alexis Gerber's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexis Gerber reassigns Medicare benefits to Jefferson University Physicians (Philadelphia, PA). 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 Alexis Gerber's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alexis Gerber accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Alexis Gerber 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 Alexis Gerber affiliated with any hospitals?
According to CMS data, Alexis Gerber is affiliated with Thomas Jefferson University Hospital and St Mary Medical Center.
When was this NPI record last updated?
The NPPES record for Alexis Gerber was last updated on December 12, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Dr. Alexis Gerber, M.D. · NPI 1174990451
Internal Medicine physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since August 21, 2015.
## Identity
- **NPI:** 1174990451 (Entity type: Individual)
- **Enumerated:** August 21, 2015
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** MD464725 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 111 S 11TH ST, Philadelphia, PA 19107
- **Phone:** (215) 955-8900 · **Fax:** (215) 923-3447
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** Jefferson University Physicians (NPI 1326093675, Philadelphia, PA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** December 12, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1174990451) · Data from the CMS NPPES public registry.