LADONNA L IMMKEN MD
NPI 1053363531
Medical Genetics - Clinical Genetics (M.D.) in Austin, TX
About Ladonna L Immken Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LADONNA L IMMKEN MD (NPI 1053363531) is an individual clinical genetics (m.d.) provider in Austin, Texas, licensed in Texas (G4018) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
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)
Ladonna L Immken Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Ladonna Immken reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Austin, TX 78723
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: Dell Childrens Medical Group
- 576 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.
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.
AUSTIN, TX 78731
AUSTIN, TX 78731
AUSTIN, TX 78731
AUSTIN, TX 78731
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 Ladonna Immken's NPI number?
The NPI number for Ladonna Immken is 1053363531. It was assigned to this individual provider in the NPPES registry on May 16, 2006.
Where is Ladonna Immken located?
Ladonna Immken practices at 6811 Austin Center Blvd Suite #400, Austin, TX 78731. The listed phone number is (512) 628-1840.
What is Ladonna Immken's specialty?
The primary specialty registered for this NPI is Medical Genetics, specializing in Clinical Genetics (M.D.), with taxonomy code 207SG0201X.
Is Ladonna Immken enrolled in Medicare?
Yes. Ladonna Immken is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Ladonna Immken's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ladonna Immken reassigns Medicare benefits to Dell Children's Medical Group (Austin, TX). 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 Ladonna Immken's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ladonna Immken accept?
Health plans from Oscar Insurance Company list Ladonna Immken 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 Ladonna Immken was last updated on January 10, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Ladonna L Immken, MD · NPI 1053363531
Clinical Genetics (M.D.) physician in Austin, Texas. Individual provider, active in the CMS NPPES registry since May 16, 2006.
## Identity
- **NPI:** 1053363531 (Entity type: Individual)
- **Enumerated:** May 16, 2006
- **Primary specialty:** Medical Genetics - Clinical Genetics (M.D.) · taxonomy 207SG0201X
- **State license:** G4018 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 6811 AUSTIN CENTER BLVD, SUITE #400, Austin, TX 78731-3146
- **Phone:** (512) 628-1840 · **Fax:** (512) 628-1840
## 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:** Dell Children's Medical Group (NPI 1326072943, Austin, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 10, 2012
- **Other identifiers:** Medicaid 136490301 (TX); Medicaid 136490305 (TX); Medicare ID-Type Unspecified 89869F (TX); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1053363531) · Data from the CMS NPPES public registry.