Christina Tsai
Internal Medicine Physician · Saint Louis, MO
Christina Tsai is an internal medicine physician with a practice address in Saint Louis, Missouri, and NPI 1023646833, issued on Mar 28, 2020. Check the license (Missouri 2023031446, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Christina Tsai
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 2023031446 MO
Self-reported in NPPES; status is on the state search - Practice location
- 3660 Vista Ave, Saint Louis, MO 63110
- Phone
- (314) 977-6100
- Enumerated
- Mar 28, 2020
- Record last updated
- Aug 7, 2023
- Fax
- (314) 977-6164
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,604 in Missouri → Look up another NPI →
Also registered at 3660 Vista Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Christina Tsai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2023031446Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
41 Medicare Part D claims for 14 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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 practice group's MIPS final score for 2023 (Medicare payment program): 81.6 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).
Industry payments in 2024: $296.71
3 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Christina Tsai among 2,604 internal medicine physician records in Missouri
Christina Tsai is one of 2,604 internal medicine physician records with a practice address in Missouri. 77% 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 · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 55% of these records are
- Record last updated2023 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
941 internal medicine physician records list a practice address in Saint Louis
They are 941 of the 27,605 NPPES records with a practice address in Saint Louis, and 2,604 internal medicine physician records in Missouri.
All 2,604 in Missouri → Every provider in Saint Louis → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Thomas Bartholet, MDSaint Louis, MO 631101750325742
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- Charles Lieu, MDSaint Louis, MO 631101871510396
- Kenneth Ludmerer, MDSaint Louis, MO 631101366468597
- Barbara Lutey, MDSaint Louis, MO 631101306862628
- Heidi Miller, M.D.Saint Louis, MO 631101922082361
- Tracy Norfleet, MDSaint Louis, MO 631101487680377
Common questions
What is Christina Tsai's NPI number?
Christina Tsai's National Provider Identifier (NPI) is 1023646833, issued on Mar 28, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Christina Tsai located?
The NPPES record lists a practice address at 3660 Vista Ave, Saint Louis, MO, 63110. Phone: (314) 977-6100. Providers update this record themselves, so call before visiting.
How can I verify Christina Tsai's license?
NPPES lists Missouri license number 2023031446, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Christina Tsai prescribe under Medicare Part D?
In 2024, Christina Tsai had 41 Medicare Part D claims for 14 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Christina Tsai's MIPS final score?
The 2023 MIPS final score is 81.6 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.