Michael Ryan, MD
NPI 1407966559 · Anesthesiology Physician · Chesterfield, MO
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Ryan, MD is a Anesthesiology Physician provider in Chesterfield, MO (NPI 1407966559).
Provider details
- NPI number
- 1407966559
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 104661 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2006-08-30
- Last updated
- 2007-07-08
Frequently asked questions
- What is Michael Ryan's NPI number?
- Michael Ryan's National Provider Identifier (NPI) is 1407966559, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Ryan's specialty?
- Michael Ryan is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Ryan located?
- Michael Ryan's practice location on file with NPPES is 232 S Woods Mills Rd, Chesterfield, MO 63017.
- What is Michael Ryan's phone number?
- The practice phone number listed in the NPPES registry for Michael Ryan is (314) 205-6917.
- Does Michael Ryan accept Medicare?
- Michael Ryan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Ryan's NPI active?
- Yes — Michael Ryan's NPI (1407966559) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.