Sara F. Siwanowicz, CRNA
Certified Registered Nurse Anesthetist · Vancouver, WA
Sara F. Siwanowicz, CRNA is a certified registered nurse anesthetist with a practice address in Vancouver, Washington, and NPI 1760447908, issued on Apr 19, 2006. Check the license (Washington AP30007036, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sara F. Siwanowicz
- Credential
- CRNA
- Primary taxonomy
- Certified Registered Nurse Anesthetist 367500000X
- License numbers
- AP30007036 WA
RN00158602 WA
Self-reported in NPPES; status is on the state search - Practice location
- 400 NE Mother Joseph PL, Vancouver, WA 98664
- Phone
- (360) 828-5396
- Enumerated
- Apr 19, 2006
- Record last updated
- Mar 8, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (360) 828-5455
- Medicaid ID
- 9646258 WA
- Medicare enrollment
- Enrolled (PECOS I20080515000666); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest certified registered nurse anesthetist records → All 1,181 in Washington → Look up another NPI →
Also registered at 400 NE Mother Joseph PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karlie Abrams, RDRegistered Dietitian1932615523
- Knoll AguilarPharmacist1881233120
- Ayesha Akhter, MDInternal Medicine Physician1134174469
- Jessica Albrich, MDEmergency Medicine Physician1396233995
- Camilla Allen, MDAnatomic Pathology & Clinical Pathology Physician1225048762
- Chloe Allen Maycock, MDAnesthesiology Physician1730384991
Verify Sara F. Siwanowicz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license AP30007036Check 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 3 group practices
- Columbia Anesthesia Group P SPortland, OR
- Oregon Anesthesiology Group PCPortland, OR
- Tuality Anesthesia Services LLCHillsboro, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sara F. Siwanowicz among 1,181 certified registered nurse anesthetist records in Washington
Sara F. Siwanowicz, CRNA is one of 1,181 certified registered nurse anesthetist records with a practice address in Washington. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 71% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2005 · median 2014 among the 816 with a school on file
- Record last updated2017 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Certified Registered Nurse Anesthetist providers in Washington
There are 1,181 certified registered nurse anesthetist records in Washington.
All 1,181 in Washington → Every provider in Vancouver → Certified Registered Nurse Anesthetist nationwide →
The 8 certified registered nurse anesthetist records with the nearest ZIP codes
- Kip Bland, CRNAVancouver, WA 986641881629301
- Cesar Caceres, CRNAVancouver, WA 986641194157909
- Mark Cohen, CRNA, ARNPVancouver, WA 986641811981764
- Charles Daniels, CRNAVancouver, WA 986641699026716
- Tania Derington, CRNAVancouver, WA 986641093755860
- Kari Edgren, CRNAVancouver, WA 986641790124550
- Erin FreyerVancouver, WA 986641760917173
- Andrea HargisVancouver, WA 986641598127557
Common questions
What is Sara F. Siwanowicz, CRNA's NPI number?
Sara F. Siwanowicz, CRNA's National Provider Identifier (NPI) is 1760447908, issued on Apr 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sara F. Siwanowicz, CRNA located?
The NPPES record lists a practice address at 400 NE Mother Joseph PL, Vancouver, WA, 98664. Phone: (360) 828-5396. Providers update this record themselves, so call before visiting.
How can I verify Sara F. Siwanowicz, CRNA's license?
NPPES lists Washington license number AP30007036, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity 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.