Timothy Tsai, MSN, APRN, FNP-C
Family Nurse Practitioner · Honolulu, HI
Timothy Tsai, MSN, APRN, FNP-C is a family nurse practitioner with a practice address in Honolulu, Hawaii, and NPI 1669844890, issued on Oct 27, 2015. Check the license (Hawaii 1995, as entered in NPPES) with the Hawaii board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Timothy Tsai
- Credential
- MSN, APRN, FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 1995 HI
Self-reported in NPPES; status is on the state search - Practice location
- 915 N King St, Honolulu, HI 96817
- Phone
- (510) 565-4775
- Enumerated
- Oct 27, 2015
- Record last updated
- Oct 27, 2015 (not updated in 11 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 780 in Hawaii → Look up another NPI →
Also registered at 915 N King St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Adeline Adachi, DNP, APRN-RX, FNP-BCFamily Nurse Practitioner1073269023
- Joanne Amberg, APRNObstetrics & Gynecology Nurse Practitioner1619997475
- Nafanua Braginsky, APRNFamily Nurse Practitioner1346339264
- Narelie Calley, APRNFamily Nurse Practitioner1255088662
- Graciela Cando, MDFamily Medicine Physician1245817758
- Erika Chinn-Galindo, RDN, LDNRegistered Dietitian1023482452
Verify Timothy Tsai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Hawaii board licenses this profession
Search for license 1995Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average family nurse practitioner in 2024
2,721 Medicare Part D claims for 296 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 34 claims were for opioids.
Most prescribed
- Atorvastatin Calcium183 claims
- Amlodipine Besylate174 claims
- Metformin Hcl111 claims
- Losartan Potassium108 claims
- Lisinopril102 claims
- Albuterol Sulfate Hfa76 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.
Timothy Tsai among 780 family nurse practitioner records in Hawaii
Timothy Tsai, MSN, APRN, FNP-C is one of 780 family nurse practitioner records with a practice address in Hawaii. 62% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 36% of them.
- NPI issued2015 · 36% of these records are older, 59% newer
- In a Medicare fileYes · 62% of these records are
- In the CMS Doctors and Clinicians fileNo · 48% of these records are
- Record last updated2015 · 44% 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 Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
311 family nurse practitioner records list a practice address in Honolulu
They are 311 of the 12,408 NPPES records with a practice address in Honolulu, and 780 family nurse practitioner records in Hawaii.
All 780 in Hawaii → Every provider in Honolulu → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Cheryl Aruga, FNPHonolulu, HI 968171538320197
- Nafanua Braginsky, APRNHonolulu, HI 968171346339264
- Tiffany Hamilton, APRNHonolulu, HI 968171750707600
- Mish Kuklok, MSN, FNP-BCHonolulu, HI 968171336578459
- Mona Kurashima, MSN, FNP-BC, APRN-RXHonolulu, HI 968171437149135
- Jennifer Lee, NPHonolulu, HI 968171427121094
- Margaret McNulty, DRPHHonolulu, HI 968171780021402
- Mandira NeupaneHonolulu, HI 968171245637172
Common questions
What is Timothy Tsai, MSN, APRN, FNP-C's NPI number?
Timothy Tsai, MSN, APRN, FNP-C's National Provider Identifier (NPI) is 1669844890, issued on Oct 27, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Tsai, MSN, APRN, FNP-C located?
The NPPES record lists a practice address at 915 N King St, Honolulu, HI, 96817. Phone: (510) 565-4775. Providers update this record themselves, so call before visiting.
How can I verify Timothy Tsai, MSN, APRN, FNP-C's license?
NPPES lists Hawaii license number 1995, as entered by the provider. Search the Hawaii board that licenses this profession; the NPPES record confirms identity only.
How much does Timothy Tsai, MSN, APRN, FNP-C prescribe under Medicare Part D?
In 2024, Timothy Tsai, MSN, APRN, FNP-C had 2,721 Medicare Part D claims for 296 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.
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.