NPPES file of Aug 9, 2026

Patricia Shih-Ting Tsai, M.D.

Gastroenterology Physician · Newport Beach, CA

Patricia Shih-Ting Tsai, M.D. is a gastroenterology physician with a practice address in Newport Beach, California, and NPI 1538100896, issued on Jun 9, 2006. Check the license (California A64184, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1538100896
Name
Patricia Shih-Ting Tsai
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
A64184 CA
Self-reported in NPPES; status is on the state search
Practice location
496 Old Newport Blvd, Newport Beach, CA 92663
Phone
(949) 650-4630
Enumerated
Jun 9, 2006
Record last updated
Jun 7, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicaid ID
00A641840 CA
Medicare enrollment
Enrolled (PECOS I20040802001566); accepts Medicare assignment
Medical or professional school
University Of Chicago, Pritzker School Of Medicine, 1995
Telehealth
Offers telehealth (CMS)
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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Also registered at 496 Old Newport Blvd

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

  1. Andrew Iraniha, M.D.,F.A.C.SSurgery Physician1700887833
  2. Dan Mandel, MDRheumatology Physician1578672309

Verify Patricia Shih-Ting 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 A64184
    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

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3.0 times the Medicare Part D claims of the average gastroenterology physician in 2024

2,393 Medicare Part D claims for 697 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.

  1. Patricia Tsai2,393
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium492 claims
  2. Famotidine376 claims
  3. Omeprazole303 claims
  4. Sod Sulf-Potass Sulf-Mag Sulf201 claims
  5. Sucralfate105 claims
  6. Vemlidy68 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.

The MIPS final score for 2023 (Medicare payment program): 73.4 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score52.8
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%98.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $4,426.38

168 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Patricia Tsai$4,426.38
  2. Specialty average$5,015.95

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

Gastroenterology Physician providers in California

There are 2,140 gastroenterology physician records in California.

Other gastroenterology physician records in California

  1. David Aarons, MDLodi, CA1619081379
  2. Constante Abaya, MDOxnard, CA1003918459
  3. Sadeea Abbasi, M.D., PH.D.Los Angeles, CA1366713513
  4. Basim Abdelkarim, MDUpland, CA1932217544
  5. Homan Abdollahzadeh, MDPalm Springs, CA1184634826
  6. John Abdulian, M.D.Fresno, CA1437114113
  7. Hussein Abidali, DORancho Cucamonga, CA1205274768
  8. Alaa Abousaif, MDOrange, CA1235124108
  9. Donald Abrahm, M.D.Newport Beach, CA1215022405
  10. Maria Abreu, M.D.West Hollywood, CA1598793374

Common questions

What is Patricia Shih-Ting Tsai, M.D.'s NPI number?

Patricia Shih-Ting Tsai, M.D.'s National Provider Identifier (NPI) is 1538100896, issued on Jun 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Patricia Shih-Ting Tsai, M.D. located?

The NPPES record lists a practice address at 496 Old Newport Blvd, Newport Beach, CA, 92663. Phone: (949) 650-4630. Providers update this record themselves, so call before visiting.

How can I verify Patricia Shih-Ting Tsai, M.D.'s license?

NPPES lists California license number A64184, 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 Patricia Shih-Ting Tsai, M.D. prescribe under Medicare Part D?

In 2024, Patricia Shih-Ting Tsai, M.D. had 2,393 Medicare Part D claims for 697 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is Patricia Shih-Ting Tsai, M.D.'s MIPS final score?

The 2023 MIPS final score is 73.4 of 100. 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.