NPPES file of Aug 9, 2026

Richard Tsai, M.D.

Hospitalist Physician · Lafayette, CO

Richard Tsai, M.D. is a hospitalist physician with a practice address in Lafayette, Colorado, and NPI 1619008414, issued on Mar 7, 2007. Check the license (Colorado DR0043231, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619008414
Name
Richard Tsai
Credential
M.D.
Primary taxonomy
Hospitalist Physician 208M00000X
License numbers
DR0043231 CO
43231 CO
Self-reported in NPPES; status is on the state search
Practice location
200 Exempla Cir, Lafayette, CO 80026
Phone
(303) 338-4545
Enumerated
Mar 7, 2007
Record last updated
Jun 2, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
38482231 CO
Medicare enrollment
Enrolled (PECOS I20050418000638); accepts Medicare assignment
Medical or professional school
Boston University School Of Medicine, 1999
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 200 Exempla Cir

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

  1. Connie AkersAmbulatory Care Registered Nurse1619159589
  2. Jenna Allais, PHARMDPharmacist1487063889
  3. Jordan Ancmon, DOEmergency Medicine Physician1184284515
  4. Maria Arenas, CSFASurgical Physician Assistant1306652490
  5. Kristie ArendPharmacotherapy Pharmacist1528807864
  6. Ann Aycrigg, NPNurse Practitioner1033235643

Verify Richard Tsai in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license DR0043231
    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 Colorado 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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Bills Medicare through one group practice

  1. Colorado Permanente Medical Group PCLafayette, CO

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

Richard Tsai among 806 hospitalist physician records in Colorado

Richard Tsai, M.D. is one of 806 hospitalist physician records with a practice address in Colorado. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 19% of them.

  • NPI issued2007 · 19% of these records are older, 71% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated1999 · median 2012 among the 622 with a school on file
  • Record last updated2021 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in Colorado

There are 806 hospitalist physician records in Colorado.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Richard Bigler, DOLafayette, CO 800261487018495
  2. Michael Dubow, M.D.Lafayette, CO 800261386062370
  3. Stephanie Eldred, MDLafayette, CO 800261619321148
  4. Derek Goodyear, D.O.Lafayette, CO 800261144632274
  5. Jerry Markussen, MDLafayette, CO 800261154458180
  6. Sagarika Sinha, MDLafayette, CO 800261639607021
  7. Michael Stachler, MDLafayette, CO 800261295297745
  8. Christina Stovall, MDLafayette, CO 800261285606087

Common questions

What is Richard Tsai, M.D.'s NPI number?

Richard Tsai, M.D.'s National Provider Identifier (NPI) is 1619008414, issued on Mar 7, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Richard Tsai, M.D. located?

The NPPES record lists a practice address at 200 Exempla Cir, Lafayette, CO, 80026. Phone: (303) 338-4545. Providers update this record themselves, so call before visiting.

How can I verify Richard Tsai, M.D.'s license?

NPPES lists Colorado license number DR0043231, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.