NPPES file of Aug 9, 2026

January Y. Tsai, MD

Anesthesiology Physician · Houston, TX

January Y. Tsai, MD is an anesthesiology physician with a practice address in Houston, Texas, and NPI 1003121237, issued on Aug 12, 2010. Check the license (Texas N5441, as entered in NPPES) on the Texas Medical Board; 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
1003121237
Name
January Y. Tsai
Credential
MD
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
N5441 TX
Self-reported in NPPES; status is on the state search
Practice location
1515 Holcombe Blvd, Houston, TX 77030
Phone
(713) 792-6161
Enumerated
Aug 12, 2010
Record last updated
Feb 21, 2011 (not updated in 15 years: call before relying on the address or phone)
Medicaid ID
217477301 TX
Medicare enrollment
Enrolled (PECOS I20101020000456); accepts Medicare assignment
Medical or professional school
University Of Michigan Medical School, 2005
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 1515 Holcombe Blvd

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

  1. Ashley Aaroe, MDNeurology Physician1902295793
  2. Linda Abad, PA-CPhysician Assistant1063928240
  3. Cynthia Abarado, RN, GNPGerontology Nurse Practitioner1851471049
  4. Hussein Abbas, MD, PHDInternal Medicine Physician1609220532
  5. James Abbruzzese, M.D.Medical Oncology Physician1134233224
  6. Karim Abdeldaem, MDEmergency Medicine Physician1558056200

Verify January Y. Tsai in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license N5441
    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 Texas 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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94% fewer Medicare Part D claims than the average anesthesiology physician in 2024

24 Medicare Part D claims, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D.

  1. January Tsai24
  2. Specialty average402

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): 81.4 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.

  1. Qualityout of 100 · 30% of the final score81.3
  2. Costout of 100 · 30%50.0
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Bills Medicare through one group practice

  1. Physicians Referral ServiceConroe, TX

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

January Y. Tsai among 4,635 anesthesiology physician records in Texas

January Y. Tsai, MD is one of 4,635 anesthesiology physician records with a practice address in Texas. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 67% of them.

  • NPI issued2010 · 67% of these records are older, 30% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2005 · median 2005 among the 3,293 with a school on file
  • Record last updated2011 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,130 anesthesiology physician records list a practice address in Houston

They are 1,130 of the 61,221 NPPES records with a practice address in Houston, and 4,635 anesthesiology physician records in Texas.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Melanie Alo, M.D.Houston, TX 770301689671240
  2. Dean Andropoulos, M.D.Houston, TX 770301366449779
  3. James Anton, M.D.Houston, TX 770301134129992
  4. Liqian Chen, M.D.Houston, TX 770301548260011
  5. Charles Collard, M.D.Houston, TX 770301548260151
  6. Camille Colomb, M.D.Houston, TX 770301790782118
  7. John Cooper, M.D.Houston, TX 770301861492324
  8. Noel Giesecke, MDHouston, TX 770301720088263

Common questions

What is January Y. Tsai, MD's NPI number?

January Y. Tsai, MD's National Provider Identifier (NPI) is 1003121237, issued on Aug 12, 2010. An NPI identifies a provider in billing; it is not a license.

Where is January Y. Tsai, MD located?

The NPPES record lists a practice address at 1515 Holcombe Blvd, Houston, TX, 77030. Phone: (713) 792-6161. Providers update this record themselves, so call before visiting.

How can I verify January Y. Tsai, MD's license?

NPPES lists Texas license number N5441, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does January Y. Tsai, MD prescribe under Medicare Part D?

In 2024, January Y. Tsai, MD had 24 Medicare Part D claims; the average among anesthesiology physician prescribers was 402. Part D covers Medicare prescriptions only.

What is January Y. Tsai, MD's MIPS final score?

The 2023 MIPS final score is 81.4 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.