Registry data as of Aug 27, 2026

Li Tso, M.D.

Internal Medicine Physician · Wellesley, MA

Li Tso, M.D. is an internal medicine physician with a practice address in Wellesley, Massachusetts, and NPI 1467443150, issued on Nov 2, 2005. Check the license on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1467443150
Name
Li Tso
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
Practice location
70 Hastings St, Wellesley, MA 02481
Phone
(781) 772-8100
Enumerated
Nov 2, 2005
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 70 Hastings St

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

  1. Christine Harrington, M.D.Internal Medicine Physician1306951363
  2. Karen Isselbacher, MDInternal Medicine Physician1508822867

Verify Li Tso in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in MedicineCheck 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 Massachusetts 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.

50% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,391 Medicare Part D claims for 255 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. 49 claims were for opioids.

  1. Li Tso1,391
  2. Specialty average2,785

Most prescribed

  1. Atorvastatin Calcium146 claims
  2. Lisinopril56 claims
  3. Valsartan55 claims
  4. Eliquis53 claims
  5. Amlodipine Besylate51 claims
  6. Hydrochlorothiazide41 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.

Industry payments in 2024: $149.52

6 payments, mostly food and beverage; the largest payer was Pfizer Inc.. The 65,274 providers of this specialty with any payment received $2,536.66 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Li Tso$149.52
  2. Specialty average$2,536.66

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital or facility affiliation

  1. Private Health Care Group, LLCWellesley, MA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

79 internal medicine physician records list a Wellesley practice address

They are 79 of the 1,117 NPPES records with a Wellesley practice address, and 7,865 internal medicine physician records in Massachusetts.

Other internal medicine physician records in Massachusetts

  1. Nawal Aamir, MDWorcester, MA1588248926
  2. Zainab AbbasWorcester, MA1609028000
  3. Nooshin Abbasi, MD MPHNewton, MA1831888353
  4. Lauren Abbate, MDBoston, MA1922099621
  5. Bassima Abdallah, MDBoston, MA1912327305
  6. Samah Abdallah, MDBrighton, MA1730814971
  7. Omar Abdel-Wahab, M.D.Boston, MA1023042777
  8. Salah Abdelgadir, MDBoston, MA1891280954
  9. Mahmoud Abdelghany, M.D.Springfield, MA1134479629
  10. Mohab AbdelhalimBoston, MA1871388496

Common questions

What is Li Tso, M.D.'s NPI number?

Li Tso, M.D.'s National Provider Identifier (NPI) is 1467443150, issued on Nov 2, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Li Tso, M.D. located?

The NPPES record lists a practice address at 70 Hastings St, Wellesley, MA, 02481. Phone: (781) 772-8100. Providers update this record themselves, so call before visiting.

How can I verify Li Tso, M.D.'s license?

Search the Massachusetts Board of Registration in Medicine at https://www.mass.gov/orgs/board-of-registration-in-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Li Tso, M.D. prescribe under Medicare Part D?

In 2024, Li Tso, M.D. had 1,391 Medicare Part D claims for 255 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.