MICHAEL LYNN NIX M.D.
NPI 1891857884
Obstetrics & Gynecology - Gynecology in Austin, TX
About Michael Lynn Nix M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL LYNN NIX M.D. (NPI 1891857884) is an individual gynecology provider in Austin, Texas, licensed in Texas (L3043) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
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)
Michael Lynn Nix M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Michael Nix reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Austin, TX 78712
- Reassigned Medicare billing, Texas enrollment
- 1,188 clinicians in this Medicare group
Austin, TX 78712
- Reassigned Medicare billing, Texas enrollment
- 294 clinicians in this Medicare group
Austin, TX 78712
- Reassigned Medicare billing, Texas enrollment
- 208 clinicians in this Medicare group
Austin, TX 78758
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: Obhg Texas Holdings PA
- 998 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 78701 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
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 78701
AUSTIN, TX 78701
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 Michael Nix's NPI number?
The NPI number for Michael Nix is 1891857884. It was assigned to this individual provider in the NPPES registry on December 15, 2006.
Where is Michael Nix located?
Michael Nix practices at 313 E 12th St Ste 104, Austin, TX 78701. The listed phone number is (512) 324-9650.
What is Michael Nix's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecology, with taxonomy code 207VG0400X.
Is Michael Nix enrolled in Medicare?
Yes. Michael Nix is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Michael Nix's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Nix reassigns Medicare benefits to 4 organizations: Seton Family Of Doctors (Austin, TX), The University Of Texas At Austin (Austin, TX), University Of Texas At Austin Dell Medical School (Austin, TX) and Obhg Texas Holdings, P.A. (Austin, 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 Michael Nix's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Nix accept?
Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 5 other insurers list Michael Nix 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 Michael Nix was last updated on January 18, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Michael Lynn Nix, M.D. · NPI 1891857884
Gynecology physician in Austin, Texas. Individual provider, active in the CMS NPPES registry since December 15, 2006.
## Identity
- **NPI:** 1891857884 (Entity type: Individual)
- **Enumerated:** December 15, 2006
- **Primary specialty:** Obstetrics & Gynecology - Gynecology · taxonomy 207VG0400X
- **State license:** L3043 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 313 E 12TH ST, STE 104, Austin, TX 78701-1954
- **Phone:** (512) 324-9650
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Seton Family Of Doctors (NPI 1588997233, Austin, TX); The University Of Texas At Austin (NPI 1073032546, Austin, TX); University Of Texas At Austin Dell Medical School (NPI 1073066239, Austin, TX); Obhg Texas Holdings, P.A. (NPI 1083917769, Austin, TX) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 18, 2013
- **Other identifiers:** Medicare UPIN H57326 (TX); Medicaid 150334404 (TX); Medicare PIN 8L14620 (TX)
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Source: [NPI Profile](https://npiprofile.com/npi/1891857884) · Data from the CMS NPPES public registry.