Catherine Ryan, M.D.
NPI 1730295940 · Gynecology Physician · Boulder, CO
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Ryan, M.D. is a Gynecology Physician provider in Boulder, CO (NPI 1730295940).
Provider details
- NPI number
- 1730295940
- Entity type
- Individual
- Primary specialty
- Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 40191 (CO)
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
- 2006-08-21
- Last updated
- 2017-04-06
Frequently asked questions
- What is Catherine Ryan's NPI number?
- Catherine Ryan's National Provider Identifier (NPI) is 1730295940, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Ryan's specialty?
- Catherine Ryan is listed in the NPPES registry with a primary specialty of Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Catherine Ryan located?
- Catherine Ryan's practice location on file with NPPES is 4745 Arapahoe Ave Ste 110, Boulder, CO 80303-1082.
- What is Catherine Ryan's phone number?
- The practice phone number listed in the NPPES registry for Catherine Ryan is (303) 444-5110.
- Does Catherine Ryan accept Medicare?
- Catherine Ryan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Ryan's NPI active?
- Yes — Catherine Ryan's NPI (1730295940) is active in the NPPES registry as of the last update on 2017-04-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.