Tiassa Lena Powell, CRNA
Certified Registered Nurse Anesthetist · San Jose, CA
Tiassa Lena Powell, CRNA is a certified registered nurse anesthetist with a practice address in San Jose, California, and NPI 1083221220, issued on Sep 30, 2020. Check the license (California 95001408, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tiassa Lena Powell
- Credential
- CRNA
- Primary taxonomy
- Certified Registered Nurse Anesthetist 367500000X
- License number
- 95001408 CA
Self-reported in NPPES; status is on the state search - Practice location
- 250 Hospital Pkwy, San Jose, CA 95119
- Phone
- (408) 972-3000
- Enumerated
- Sep 30, 2020
- Record last updated
- Mar 28, 2022
- Medicare enrollment
- Enrolled (PECOS I20210401000603); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest certified registered nurse anesthetist records → All 2,943 in California → Look up another NPI →
Also registered at 250 Hospital Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kristine AmiiPhysical Therapist1356696975
- Franklin Amog, RNCritical Care Medicine Registered Nurse1376408914
- Rachel AranzasoSocial Worker1740659366
- Robert Atienza, MDAnatomic Pathology & Clinical Pathology Physician1609134725
- Elizabeth BaileyDietary Manager1346388758
- Heather BlakeCertified Registered Nurse Anesthetist1750771168
Verify Tiassa Lena Powell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95001408Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 91 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 3 group practices
- Alameda Health SystemOakland, CA
- Central California Anesthesiology SolutionsWatsonville, CA
- Cep America - Anesthesia PCRed Bluff, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tiassa Lena Powell among 2,943 certified registered nurse anesthetist records in California
Tiassa Lena Powell, CRNA is one of 2,943 certified registered nurse anesthetist records with a practice address in California. 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 2020, is newer than 75% of them.
- NPI issued2020 · 75% of these records are older, 21% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2020 · median 2016 among the 2,089 with a school on file
- Record last updated2022 · 51% 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 California 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 California
There are 2,943 certified registered nurse anesthetist records in California.
All 2,943 in California → Every provider in San Jose → Certified Registered Nurse Anesthetist nationwide →
The 8 certified registered nurse anesthetist records with the nearest ZIP codes
- Anna BibergalSan Jose, CA 951191326178930
- Heather BlakeSan Jose, CA 951191750771168
- Lindsay Bradley, CRNASan Jose, CA 951191134586068
- Mary Carlisle, CRNASan Jose, CA 951191154353928
- Jennifer Davoudi, CRNASan Jose, CA 951191407905920
- Sandra Erickson, CRNASan Jose, CA 951191568527901
- Edward Herrera, CRNASan Jose, CA 951191649744939
- Marilou Kokmeyer, CRNA, MSSan Jose, CA 951191588721385
Common questions
What is Tiassa Lena Powell, CRNA's NPI number?
Tiassa Lena Powell, CRNA's National Provider Identifier (NPI) is 1083221220, issued on Sep 30, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Tiassa Lena Powell, CRNA located?
The NPPES record lists a practice address at 250 Hospital Pkwy, San Jose, CA, 95119. Phone: (408) 972-3000. Providers update this record themselves, so call before visiting.
How can I verify Tiassa Lena Powell, CRNA's license?
NPPES lists California license number 95001408, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
What is Tiassa Lena Powell, CRNA's MIPS final score?
The 2023 MIPS final score is 91 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.