Fredrick Sungjae An, DO
Internal Medicine Physician · Olympia, WA
Fredrick Sungjae An, DO is an internal medicine physician with a practice address in Olympia, Washington, and NPI 1194991901, issued on May 1, 2008. Check the license (Washington OP61580368, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Fredrick Sungjae An
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- OP61580368 WA
DO29350 OR
Self-reported in NPPES; status is on the state search - Practice location
- 413 Lilly RD NE, Olympia, WA 98506
- Phone
- (360) 491-9480
- Enumerated
- May 1, 2008
- Record last updated
- Mar 19, 2025
- Fax
- (360) 456-2413
- Medicaid ID
- 2013154 WA
- Medicare enrollment
- Enrolled (PECOS I20250303001704); accepts Medicare assignment
- Medical or professional school
- College Of Osteo Med Of The Pacific At Pomona, 2008
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Also registered at 413 Lilly RD NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Waleed Abraham, MDInternal Medicine Physician1871567495
- Nina Andersen, DOHospice and Palliative Medicine (Internal Medicine) Physician1912535576
- Andrea Andrews, PHARMDPharmacist1952855389
- Scott Archer, ARNPAdult Health Nurse Practitioner1093979940
- Alexandra Arendt, DOAnesthesiology Physician1831765130
Verify Fredrick Sungjae An in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP61580368Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 2 group practices
- Franciscan Medical GroupTacoma, WA
- Kaiser Foundation Health Plan OF WashingtonOlympia, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Fredrick Sungjae An among 3,079 internal medicine physician records in Washington
Fredrick Sungjae An, DO is one of 3,079 internal medicine physician records with a practice address in Washington. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 54% of them.
- NPI issued2008 · 54% of these records are older, 42% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2008 · median 2006 among the 1,852 with a school on file
- Record last updated2025 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
78 internal medicine physician records list a practice address in Olympia
They are 78 of the 5,034 NPPES records with a practice address in Olympia, and 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Olympia → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Waleed Abraham, MDOlympia, WA 985061871567495
- Kawandus Bennett, MDOlympia, WA 985061912945718
- Poonam BhagiaOlympia, WA 985061275592628
- Zachary Chen, MDOlympia, WA 985061679689780
- Julio Gonzalez, M.D.Olympia, WA 985061447204326
- Andrei Ionescu, M.D.Olympia, WA 985061689604589
- Shalini Jacob, M.D., MRCP, FACPOlympia, WA 985061144206038
- Susan Links, M.D.Olympia, WA 985061639272701
Common questions
What is Fredrick Sungjae An, DO's NPI number?
Fredrick Sungjae An, DO's National Provider Identifier (NPI) is 1194991901, issued on May 1, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Fredrick Sungjae An, DO located?
The NPPES record lists a practice address at 413 Lilly RD NE, Olympia, WA, 98506. Phone: (360) 491-9480. Providers update this record themselves, so call before visiting.
How can I verify Fredrick Sungjae An, DO's license?
NPPES lists Washington license number OP61580368, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.