Michelle Ryba, A.A.
NPI 1558695031 · Anesthesiologist Assistant · Round Rock, TX
Enrolled with Medicare as Practitioner - Anesthesiology Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michelle Ryba, A.A. is a Anesthesiologist Assistant provider in Round Rock, TX (NPI 1558695031).
Provider details
- NPI number
- 1558695031
- Entity type
- Individual
- Primary specialty
- Anesthesiologist AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- A.A.
- Sex
- Female
- Sole proprietor
- No
- License
- 969 (TX)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 615 S New Ballas RdDept. of AnesthesiaSaint Louis, MO 63141-8221Phone: (314) 251-6000
Registry dates
- Enumerated
- 2009-09-30
- Last updated
- 2021-12-23
- Certified
- 2021-12-23
Frequently asked questions
- What is Michelle Ryba's NPI number?
- Michelle Ryba's National Provider Identifier (NPI) is 1558695031, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michelle Ryba's specialty?
- Michelle Ryba is listed in the NPPES registry with a primary specialty of Anesthesiologist Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Michelle Ryba located?
- Michelle Ryba's practice location on file with NPPES is 300 University Blvd, Round Rock, TX 78665.
- What is Michelle Ryba's phone number?
- The practice phone number listed in the NPPES registry for Michelle Ryba is (512) 509-0100.
- Does Michelle Ryba accept Medicare?
- Michelle Ryba is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michelle Ryba's NPI active?
- Yes — Michelle Ryba's NPI (1558695031) is active in the NPPES registry as of the last update on 2021-12-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.