CAROLINE C. HAHN MD
NPI 1730253048
Anesthesiology in Saint Louis, MO
About Caroline C. Hahn Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CAROLINE C. HAHN MD (NPI 1730253048) is an individual anesthesiology provider in Saint Louis, Missouri, licensed in Texas (N5702) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS and maintains a secondary practice location in Dallas.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Location 1
Other Identifiers 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Caroline C. Hahn Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
5Medicare enrollment records show Caroline Hahn reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Dallas, TX 75240
- Reassigned Medicare billing, Texas enrollment
- 7 clinicians in this Medicare group
Dallas, TX 75205
- Reassigned Medicare billing, Texas enrollment
- 62 clinicians in this Medicare group
Dallas, TX 75205
- Reassigned Medicare billing, Texas enrollment
- 53 clinicians in this Medicare group
Lancaster, TX 75146
- Reassigned Medicare billing, Texas enrollment
- 56 clinicians in this Medicare group
Houston, TX 77042
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: U S Anesthesia Partners Of Texas, PA
- 3,804 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
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.
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.
SAINT LOUIS, MO 63131
SAINT LOUIS, MO 63131
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 Caroline Hahn's NPI number?
The NPI number for Caroline Hahn is 1730253048. It was assigned to this individual provider in the NPPES registry on November 20, 2006. The provider is also known as Caroline Joy Cheng M.D..
Where is Caroline Hahn located?
Caroline Hahn practices at 3015 N Ballas Rd, Saint Louis, MO 63131. The listed phone number is (314) 996-5000.
What is Caroline Hahn's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Caroline Hahn enrolled in Medicare?
Yes. Caroline Hahn is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Caroline Hahn's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Caroline Hahn reassigns Medicare benefits to 5 organizations: Omega Anesthesia, PLLC (Dallas, TX), Stratus Dominion Anesthesia Associates PLLC (Dallas, TX), Vertex Anesthesia, PLLC (Dallas, TX), Hill Regional Physician Group, Inc. (Lancaster, TX) and U. S. Anesthesia Partners Of Texas, P.A., (Houston, TX). 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 Caroline Hahn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Caroline Hahn accept?
Health plans from Baylor Scott and White Health Plan and Blue Cross and Blue Shield of Texas list Caroline Hahn 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 Caroline Hahn was last updated on August 29, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Caroline C. Hahn, MD · NPI 1730253048
Anesthesiology physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since November 20, 2006.
## Identity
- **NPI:** 1730253048 (Entity type: Individual)
- **Enumerated:** November 20, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** N5702 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 3015 N BALLAS RD, Saint Louis, MO 63131-2329
- **Phone:** (314) 996-5000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Omega Anesthesia, PLLC (NPI 1992150486, Dallas, TX); Stratus Dominion Anesthesia Associates PLLC (NPI 1912350976, Dallas, TX); Vertex Anesthesia, PLLC (NPI 1487106175, Dallas, TX); Hill Regional Physician Group, Inc. (NPI 1679189856, Lancaster, TX); U. S. Anesthesia Partners Of Texas, P.A., (NPI 1548208564, Houston, TX) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 29, 2024
- **Other identifiers:** Other 8FD146 (TX); Medicaid 00A812190 (CA); Medicaid 216069904 (TX)
---
Source: [NPI Profile](https://npiprofile.com/npi/1730253048) · Data from the CMS NPPES public registry.