Linda C. Tsai, M.D.
Internal Medicine Physician · Natick, MA
Linda C. Tsai, M.D. is an internal medicine physician with a practice address in Natick, Massachusetts, and NPI 1750489449, issued on Sep 20, 2006. Check the license (Massachusetts 208363, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Linda C. Tsai
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 208363 MA
Self-reported in NPPES; status is on the state search - Practice location
- 190 N Main St, Natick, MA 01760
- Phone
- (508) 647-1600
- Enumerated
- Sep 20, 2006
- Record last updated
- Mar 4, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (508) 647-1695
- Medicaid ID
- 0162230 MA
- Medicare enrollment
- Enrolled (PECOS I20050517000345); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1991
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 190 N Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Megan Campbell, MSWClinical Social Worker1538666383
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- Trista Repassy, M.D.Internal Medicine Physician1073560769
Verify Linda C. Tsai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 208363Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,930 Medicare Part D claims for 222 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 24 claims were for opioids.
Most prescribed
- Atorvastatin Calcium173 claims
- Amlodipine Besylate120 claims
- Levothyroxine Sodium101 claims
- Lisinopril99 claims
- Rosuvastatin Calcium66 claims
- Losartan Potassium62 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.
Bills Medicare through one group practice
- Medical Care OF Boston Management CorporationNeedham, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
22 internal medicine physician records list a practice address in Natick
They are 22 of the 1,154 NPPES records with a practice address in Natick, and 6,825 internal medicine physician records in Massachusetts.
All 22 in Natick → All 6,825 in Massachusetts → Every provider in Natick →
Other internal medicine physician records in Massachusetts
- Nawal Aamir, MDWorcester, MA1588248926
- Nathan Abare, MDSpringfield, MA1386852747
- Nooshin Abbasi, MD MPHNewton, MA1831888353
- Taimur AbbasiBoston, MA1841673522
- Lauren Abbate, MDBoston, MA1922099621
- Bassima Abdallah, MDBoston, MA1912327305
- Maya Abdallah, MDBoston, MA1861854937
- Samah Abdallah, MDBrighton, MA1730814971
- Omar Abdel-Wahab, M.D.Boston, MA1023042777
- Mohab AbdelhalimBoston, MA1871388496
Common questions
What is Linda C. Tsai, M.D.'s NPI number?
Linda C. Tsai, M.D.'s National Provider Identifier (NPI) is 1750489449, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Linda C. Tsai, M.D. located?
The NPPES record lists a practice address at 190 N Main St, Natick, MA, 01760. Phone: (508) 647-1600. Providers update this record themselves, so call before visiting.
How can I verify Linda C. Tsai, M.D.'s license?
NPPES lists Massachusetts license number 208363, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Linda C. Tsai, M.D. prescribe under Medicare Part D?
In 2024, Linda C. Tsai, M.D. had 1,930 Medicare Part D claims for 222 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.