NPPES file of Aug 9, 2026

Jamie Tsai, RN, FNP-BC

Family Nurse Practitioner · Sunnyvale, CA

Jamie Tsai, RN, FNP-BC is a family nurse practitioner with a practice address in Sunnyvale, California, and NPI 1619256625, issued on Aug 8, 2011. Check the license (California 20790, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619256625
Name
Jamie Tsai
Credential
RN, FNP-BC
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
20790 CA
784019 CA
616259-1 NY
F336674-1 NY
Self-reported in NPPES; status is on the state search
Practice location
401 Old San Francisco RD, Sunnyvale, CA 94086
Phone
(650) 934-7111
Enumerated
Aug 8, 2011
Record last updated
May 28, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20140709001829); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →

Also registered at 401 Old San Francisco RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Patti Allen, M.D.Internal Medicine Physician1659438489
  2. Leone Baron, PT, DPTPhysical Therapist1538708839
  3. Priya Bhusri, M.D.Internal Medicine Physician1659386019
  4. Yeralis Cabrero, PT, DPTPhysical Therapist1639991714
  5. Rafael Cahill, DPTPhysical Therapist1235742057
  6. Natalie Chan, DPTPhysical Therapist1619730629

Verify Jamie Tsai in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 20790    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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93% fewer Medicare Part D claims than the average family nurse practitioner in 2024

94 Medicare Part D claims for 58 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 53 claims were for opioids.

  1. Jamie Tsai94
  2. Specialty average1,305

Most prescribed

  1. Ondansetron Hcl28 claims
  2. Acetaminophen-Codeine25 claims
  3. Hydrocodone-Acetaminophen23 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.

Industry payments in 2024: $376.78

6 payments; by number, the most common kind was food and beverage; the largest payer was Bioventus LLC. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jamie Tsai$376.78
  2. Specialty average$650.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Sutter Bay Medical FoundationPalo Alto, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jamie Tsai among 16,966 family nurse practitioner records in California

Jamie Tsai, RN, FNP-BC is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 19% of them.

  • NPI issued2011 · 19% of these records are older, 79% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2011 · median 2019 among the 6,793 with a school on file
  • Record last updated2020 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

44 family nurse practitioner records list a practice address in Sunnyvale

They are 44 of the 1,690 NPPES records with a practice address in Sunnyvale, and 16,966 family nurse practitioner records in California.

All 16,966 in California → Every provider in Sunnyvale → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Michelle Dickey, NPSunnyvale, CA 940861982433983
  2. Michelle Dictor, FNP-CSunnyvale, CA 940861184303679
  3. Anne Fischer, FNPSunnyvale, CA 940861134232218
  4. Jessica Flores-CamposSunnyvale, CA 940861578266789
  5. Tiffany FongSunnyvale, CA 940861023855756
  6. Jessica Jocius, NP-CSunnyvale, CA 940861548716855
  7. Janette Kimes, FNPSunnyvale, CA 940861770980039
  8. Kit Lam, NPSunnyvale, CA 940861881248003

Common questions

What is Jamie Tsai, RN, FNP-BC's NPI number?

Jamie Tsai, RN, FNP-BC's National Provider Identifier (NPI) is 1619256625, issued on Aug 8, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Jamie Tsai, RN, FNP-BC located?

The NPPES record lists a practice address at 401 Old San Francisco RD, Sunnyvale, CA, 94086. Phone: (650) 934-7111. Providers update this record themselves, so call before visiting.

How can I verify Jamie Tsai, RN, FNP-BC's license?

NPPES lists California license number 20790, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Jamie Tsai, RN, FNP-BC prescribe under Medicare Part D?

In 2024, Jamie Tsai, RN, FNP-BC had 94 Medicare Part D claims for 58 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.