NPPES file of Aug 9, 2026

Jack Shin-Yow Tsai, M.D.

Family Medicine Physician · Long Beach, CA

Jack Shin-Yow Tsai, M.D. is a family medicine physician with a practice address in Long Beach, California, and NPI 1184887838, issued on Jul 2, 2008. Check the license (California A109309, as entered in NPPES) on the Medical Board of California; 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
1184887838
Name
Jack Shin-Yow Tsai
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A109309 CA
Self-reported in NPPES; status is on the state search
Practice location
2790 Atlantic Ave, Long Beach, CA 90806
Phone
(562) 933-0431
Enumerated
Jul 2, 2008
Record last updated
Mar 7, 2023
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2790 Atlantic Ave

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

  1. Clifford Hancock, MDObstetrics & Gynecology Physician1528104437
  2. Jennifer Lizcano, D.O.Internal Medicine Physician1649534900
  3. Jennifer Wertz, M.D.Student in an Organized Health Care Education/Training Program1326347725
  4. Kelley Williams, N.P.Pediatric Nurse Practitioner1205273018
  5. Sunny Yu, PA-CPhysician Assistant1629828819

Verify Jack Shin-Yow Tsai in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A109309
    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
Open 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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50% fewer Medicare Part D claims than the average family medicine physician in 2024

1,766 Medicare Part D claims for 184 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 47 claims were for opioids.

  1. Jack Tsai1,766
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium165 claims
  2. Amlodipine Besylate138 claims
  3. Gabapentin65 claims
  4. Albuterol Sulfate Hfa60 claims
  5. Metformin Hcl58 claims
  6. Omeprazole50 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.

Jack Shin-Yow Tsai among 17,133 family medicine physician records in California

Jack Shin-Yow Tsai, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 53% of them.

  • NPI issued2008 · 53% of these records are older, 42% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2023 · 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 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

213 family medicine physician records list a practice address in Long Beach

They are 213 of the 13,650 NPPES records with a practice address in Long Beach, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Ellen Amador, D.O.Long Beach, CA 908061336244847
  2. Dedra Beckles, M.D.Long Beach, CA 908061821011339
  3. Charles Clark, M.D.Long Beach, CA 908061669490272
  4. Carrie Fields, D.O.Long Beach, CA 908061760588420
  5. Cynthia Herzog, M.D.Long Beach, CA 908061588760227
  6. Joseph Keichline, M.D.Long Beach, CA 908061467540765
  7. Brooke Laduca, MDLong Beach, CA 908061790704864
  8. Andrew Manos, D.O.Long Beach, CA 908061821153602

Common questions

What is Jack Shin-Yow Tsai, M.D.'s NPI number?

Jack Shin-Yow Tsai, M.D.'s National Provider Identifier (NPI) is 1184887838, issued on Jul 2, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Jack Shin-Yow Tsai, M.D. located?

The NPPES record lists a practice address at 2790 Atlantic Ave, Long Beach, CA, 90806. Phone: (562) 933-0431. Providers update this record themselves, so call before visiting.

How can I verify Jack Shin-Yow Tsai, M.D.'s license?

NPPES lists California license number A109309, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Jack Shin-Yow Tsai, M.D. prescribe under Medicare Part D?

In 2024, Jack Shin-Yow Tsai, M.D. had 1,766 Medicare Part D claims for 184 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.