Kai Rou Tey, M.D.
Internal Medicine Physician · Tucson, AZ
Kai Rou Tey, M.D. is an internal medicine physician with a practice address in Tucson, Arizona, and NPI 1104232651, issued on Jul 5, 2014. Check the license (Arizona R74751TEY, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Kai Rou Tey
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- R74751TEY AZ
Self-reported in NPPES; status is on the state search - Practice location
- 2800 E Ajo Way, Tucson, AZ 85713
- Phone
- (520) 874-7246
- Enumerated
- Jul 5, 2014
- Record last updated
- Jul 5, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (520) 874-4510
- Medicare enrollment
- Enrolled (PECOS I20200514002564); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →
Also registered at 2800 E Ajo Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kai Rou Tey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license R74751TEYCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average internal medicine physician in 2024
652 Medicare Part D claims for 166 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Gavilyte-G52 claims
- Ursodiol49 claims
- Xifaxan38 claims
- Tacrolimus30 claims
- Carvedilol29 claims
- Pantoprazole Sodium29 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): 97.6 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $145.61
1 payment: food and beverage; the largest payer was Madrigal Pharmaceuticals. 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.
Bills Medicare through 2 group practices
- Banner-University Medical GroupTucson, AZ
- Institute For Liver Health LLCTucson, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kai Rou Tey among 2,853 internal medicine physician records in Arizona
Kai Rou Tey, M.D. is one of 2,853 internal medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 68% of them.
- NPI issued2014 · 68% of these records are older, 30% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2012 · median 2003 among the 1,643 with a school on file
- Record last updated2014 · 51% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
651 internal medicine physician records list a practice address in Tucson
They are 651 of the 18,788 NPPES records with a practice address in Tucson, and 2,853 internal medicine physician records in Arizona.
All 2,853 in Arizona → Every provider in Tucson → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Corbin Ballam, DOTucson, AZ 857131205282894
- Rishi Bhargava, M.DTucson, AZ 857131689014946
- Fernando Blumenkron, M.D.Tucson, AZ 857131588198899
- Chrystina Cook, MDTucson, AZ 857131629017462
- Aaron Fernandes, MDTucson, AZ 857131386088227
- Kady Goldlist, M.D.Tucson, AZ 857131235512146
- Muhammad Husnain, M.D.Tucson, AZ 857131477960227
- Pallavi Koppolu, MDTucson, AZ 857131952508301
Common questions
What is Kai Rou Tey, M.D.'s NPI number?
Kai Rou Tey, M.D.'s National Provider Identifier (NPI) is 1104232651, issued on Jul 5, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Kai Rou Tey, M.D. located?
The NPPES record lists a practice address at 2800 E Ajo Way, Tucson, AZ, 85713. Phone: (520) 874-7246. Providers update this record themselves, so call before visiting.
How can I verify Kai Rou Tey, M.D.'s license?
NPPES lists Arizona license number R74751TEY, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kai Rou Tey, M.D. prescribe under Medicare Part D?
In 2024, Kai Rou Tey, M.D. had 652 Medicare Part D claims for 166 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Kai Rou Tey, M.D.'s MIPS final score?
The 2023 MIPS final score is 97.6 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.