Katherine Onnen Ryken, MD - Medicare Obstetrics/gynecology in Buffalo, NY

Katherine Onnen Ryken, MD is a medicare enrolled "Obstetrics & Gynecology" physician in Buffalo, New York. She graduated from medical school in 2017 and has 9 years of diverse experience with area of expertise as Obstetrics/gynecology. Her current practice location is 565 Abbott Rd, Buffalo, New York. You can reach out to her office (for appointments etc.) via phone at (206) 520-5000.

Katherine Onnen Ryken is licensed to practice in New York (license number 322155) and she also participates in the medicare program. She may accept medicare assignments (which means she may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and her NPI Number is 1487185633.

Contact Information

Katherine Onnen Ryken, MD
565 Abbott Rd,
Buffalo, NY 14220-2039
(206) 520-5000
Not Available

Map and Direction




Physician's Profile

Full NameKatherine Onnen Ryken
GenderFemale
SpecialityObstetrics/gynecology
Experience9 Years
Location565 Abbott Rd, Buffalo, New York
Accepts Medicare AssignmentsMay be. She may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Katherine Onnen Ryken graduated from medical school in 2017
  NPI Data:
  • NPI Number: 1487185633
  • Provider Enumeration Date: 03/21/2017
  • Last Update Date: 03/27/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 0446599393
  • Enrollment ID: I20250911003412

Medical Identifiers

Medical identifiers for Katherine Onnen Ryken such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1487185633NPI-NPPES
1487185633MedicaidWA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 241504 (Alaska)Secondary
207V00000XObstetrics & Gynecology MD61136628 (Washington)Secondary
207V00000XObstetrics & Gynecology 322155 (New York)Primary
207V00000XObstetrics & Gynecology MD29498 (Maine)Secondary
207V00000XObstetrics & Gynecology 0076454 (Colorado)Secondary

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Katherine Onnen Ryken is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Katherine Onnen Ryken, MD
565 Abbott Rd,
Buffalo, NY 14220-2039

Ph: () -
Katherine Onnen Ryken, MD
565 Abbott Rd,
Buffalo, NY 14220-2039

Ph: (206) 520-5000

Reviews and Comments


Obstetrics & Gynecology Doctors in Buffalo, NY

Rebeccah Stevens,
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Practice Location: 1001 Main St Fl 5, Buffalo, NY 14203
Phone: 716-323-0631    
Heather Michelle Link, M.D./ MPH
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Practice Location: 726 Exchange St, Buffalo, NY 14210
Phone: 716-208-9719    
Maria Sarah Morgan, MD
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Practice Location: 1001 Main St Fl 5, Buffalo, NY 14203
Phone: 716-636-8284    
Christian B Dolensek, DO
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Medicare: Accepting Medicare Assignments
Practice Location: 219 Bryant St, Dept Of Gyn/ob, Buffalo, NY 14222
Phone: 716-878-7138    
Shashikant Lele, MD
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Medicare: Medicare Enrolled
Practice Location: Elm And Carlton Streets, Buffalo, NY 14263
Phone: 716-845-2300    Fax: 716-845-7608
Dr. Suzanne C Griffith, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 462 Grider St, Buffalo, NY 14215
Phone: 716-898-3000    
Dr. Reza Askari, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 11 Summer St, Buffalo, NY 14209
Phone: 716-881-0400    Fax: 716-881-1395

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Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

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