Rosa Hye-kyung Won, MD - Medicare Pediatric Medicine in Walnut Creek, CA

Rosa Hye-kyung Won, MD is a medicare enrolled "Obstetrics & Gynecology - Maternal & Fetal Medicine" physician in Walnut Creek, California. She went to New York Medical College and graduated in 1997 and has 27 years of diverse experience with area of expertise as Pediatric Medicine. Her current practice location is 1656 N California Blvd, Suite 300, Walnut Creek, California. You can reach out to her office (for appointments etc.) via phone at (925) 941-7955.

Rosa Hye-kyung Won is licensed to practice in California (license number A68625) 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 1952489718.

Contact Information

Rosa Hye-kyung Won, MD
1656 N California Blvd, Suite 300,
Walnut Creek, CA 94596-4180
(925) 941-7955
(925) 941-7986

Map and Direction




Physician's Profile

Full NameRosa Hye-kyung Won
GenderFemale
SpecialityPediatric Medicine
Experience27 Years
Location1656 N California Blvd, Walnut Creek, California
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:
  • Rosa Hye-kyung Won attended and graduated from New York Medical College in 1997
  NPI Data:
  • NPI Number: 1952489718
  • Provider Enumeration Date: 11/01/2006
  • Last Update Date: 04/29/2009
  Medicare PECOS Information:
  • PECOS PAC ID: 5193790665
  • Enrollment ID: I20040827001142

Medical Identifiers

Medical identifiers for Rosa Hye-kyung Won such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1952489718NPI-NPPES
00A686250MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207VM0101XObstetrics & Gynecology - Maternal & Fetal Medicine A68625 (California)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Rosa Hye-kyung Won allows following entities to bill medicare on her behalf.
Entity NameDiablo Valley Perinatal Associates, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1255645172
PECOS PAC ID: 3274716345
Enrollment ID: O20110328000193

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. Rosa Hye-kyung Won 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
Rosa Hye-kyung Won, MD
Po Box 9017,
Walnut Creek, CA 94598-0917

Ph: (925) 952-2828
Rosa Hye-kyung Won, MD
1656 N California Blvd, Suite 300,
Walnut Creek, CA 94596-4180

Ph: (925) 941-7955

Reviews and Comments


Obstetrics & Gynecology Doctors in Walnut Creek, CA

Dr. Johanne M Poulin, MD
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Phone: 781-331-1999    Fax: 781-331-1999
Francis Wright, MD
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Dr. Nadine Barbara Hanna, M.D.
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Mark Allen Patterson, MD
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Dr. Madhavi Durga Vemulapalli, MD
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Practice Location: 112 La Casa Via Ste 300, Walnut Creek, CA 94598
Phone: 925-239-0012    Fax: 925-239-0011
Dr. Lillian Darlene Lanka, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 634 Shadowhawk Way, Walnut Creek, CA 94595
Phone: 925-287-1750    Fax: 925-287-1760
Megan Jarvis Lavin, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 320 Lennon Ln, Park Shadelands, Walnut Creek, CA 94598
Phone: 925-469-2239    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

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.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.