Katherine Ryken, M.D.
NPI 1487185633 · Obstetrics & Gynecology Physician · Buffalo, NY
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Ryken, M.D. is a Obstetrics & Gynecology Physician provider in Buffalo, NY (NPI 1487185633).
Provider details
- NPI number
- 1487185633
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 241504 (AK)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
- 2017-03-21
- Last updated
- 2026-03-27
- Certified
- 2026-03-27
Frequently asked questions
- What is Katherine Ryken's NPI number?
- Katherine Ryken's National Provider Identifier (NPI) is 1487185633, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Ryken's specialty?
- Katherine Ryken is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Ryken located?
- Katherine Ryken's practice location on file with NPPES is 565 Abbott Rd, Buffalo, NY 14220-2039.
- What is Katherine Ryken's phone number?
- The practice phone number listed in the NPPES registry for Katherine Ryken is (206) 520-5000.
- Does Katherine Ryken accept Medicare?
- Katherine Ryken is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Ryken's NPI active?
- Yes — Katherine Ryken's NPI (1487185633) is active in the NPPES registry as of the last update on 2026-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.