Isabelle Siddik Sinaga, PA-C
Physician Assistant · Bremerton, WA
Isabelle Siddik Sinaga, PA-C is a physician assistant with a practice address in Bremerton, Washington, and NPI 1396412433, issued on Aug 26, 2021. Check the license with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Isabelle Siddik Sinaga
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 400 Warren Ave Ste 200, Bremerton, WA 98337
- Phone
- (360) 377-3776
- Enumerated
- Aug 26, 2021
- Record last updated
- Dec 20, 2022
- Medicare enrollment
- Enrolled (PECOS I20220117000343); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,718 in Washington → Look up another NPI →
Also registered at 400 Warren Ave Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kara Boninsegna, PA-CPhysician Assistant1790552511
- Adam BoydPhysician Assistant1386125565
- Leah Boyd, PA-CPhysician Assistant1326566928
- Angela Boyer, SUDPAddiction (Substance Use Disorder) Counselor1831782895
- Elizabeth Brambilla, PA-CPhysician Assistant1972281202
Verify Isabelle Siddik Sinaga in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% fewer Medicare Part D claims than the average physician assistant in 2024
647 Medicare Part D claims for 128 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium79 claims
- Lisinopril36 claims
- Amlodipine Besylate31 claims
- Losartan Potassium26 claims
- Alendronate Sodium24 claims
- Gabapentin21 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
2 hospitals and group practices
- Virginia Mason Medical CenterBainbridge Island, WA · Acute Care Hospitals5 of 5 stars
- Peninsula Community Health ServicesKingston, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Isabelle Siddik Sinaga among 3,718 physician assistant records in Washington
Isabelle Siddik Sinaga, PA-C is one of 3,718 physician assistant records with a practice address in Washington. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 77% of them.
- NPI issued2021 · 77% of these records are older, 17% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2021 · median 2017 among the 2,460 with a school on file
- Record last updated2022 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
37 physician assistant records list a practice address in Bremerton
They are 37 of the 3,142 NPPES records with a practice address in Bremerton, and 3,718 physician assistant records in Washington.
All 3,718 in Washington → Every provider in Bremerton → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Kara Boninsegna, PA-CBremerton, WA 983371790552511
- Leah Boyd, PA-CBremerton, WA 983371326566928
- Adam BoydBremerton, WA 983371386125565
- Elizabeth Brambilla, PA-CBremerton, WA 983371972281202
- Danielle Daehnke, MPAP, PA-CBremerton, WA 983371144505991
- Callie Ford, PABremerton, WA 983371306416029
- Paul Hastings, PA-CBremerton, WA 983371902379563
- Zachary Hugo, PABremerton, WA 983371417825290
Common questions
What is Isabelle Siddik Sinaga, PA-C's NPI number?
Isabelle Siddik Sinaga, PA-C's National Provider Identifier (NPI) is 1396412433, issued on Aug 26, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Isabelle Siddik Sinaga, PA-C located?
The NPPES record lists a practice address at 400 Warren Ave Ste 200, Bremerton, WA, 98337. Phone: (360) 377-3776. Providers update this record themselves, so call before visiting.
How can I verify Isabelle Siddik Sinaga, PA-C's license?
Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Isabelle Siddik Sinaga, PA-C prescribe under Medicare Part D?
In 2024, Isabelle Siddik Sinaga, PA-C had 647 Medicare Part D claims for 128 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
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.