CHARLES ZACHARY AGGEN
NPI 1518617224
Emergency Medicine in Mobile, AL
About Charles Zachary Aggen NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHARLES ZACHARY AGGEN (NPI 1518617224) is an individual emergency medicine provider in Mobile, Alabama, licensed in Alabama (1518617224) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses 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
Charles Zachary Aggen 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
2Medicare enrollment records show Charles Aggen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mobile, AL 36604
- Reassigned Medicare billing, Alabama enrollment
- 9 clinicians in this Medicare group
Fairhope, AL 36532
- Reassigned Medicare billing, Alabama enrollment
- 131 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 36617 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.
MOBILE, AL 36617
MOBILE, AL 36617
MOBILE, AL 36617
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 Charles Aggen's NPI number?
The NPI number for Charles Aggen is 1518617224. It was assigned to this individual provider in the NPPES registry on March 25, 2022.
Where is Charles Aggen located?
Charles Aggen practices at 2451 University Hospital Dr, Mobile, AL 36617. The listed phone number is (251) 471-7907.
What is Charles Aggen's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Charles Aggen enrolled in Medicare?
Yes. Charles Aggen 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 Charles Aggen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Charles Aggen reassigns Medicare benefits to 2 organizations: Veterans Recovery Resources (Mobile, AL) and Baldwin Emergency Physicians, P.C.. (Fairhope, AL). 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 Charles Aggen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Charles Aggen accept?
Health plans from Blue Cross and Blue Shield of Alabama list Charles Aggen 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.
When was this NPI record last updated?
The NPPES record for Charles Aggen was last updated on October 24, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Charles Zachary Aggen · NPI 1518617224
Emergency Medicine physician in Mobile, Alabama. Individual provider, active in the CMS NPPES registry since March 25, 2022.
## Identity
- **NPI:** 1518617224 (Entity type: Individual)
- **Enumerated:** March 25, 2022
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 1518617224 (Alabama)
- **Sole proprietor:** No
## Practice location
- **Address:** 2451 UNIVERSITY HOSPITAL DR, Mobile, AL 36617-2300
- **Phone:** (251) 471-7907
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Veterans Recovery Resources (NPI 1285140004, Mobile, AL); Baldwin Emergency Physicians, P.C.. (NPI 1154378271, Fairhope, AL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** October 24, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1518617224) · Data from the CMS NPPES public registry.