NPPES file of Aug 9, 2026

Mario Lysse, MD

Internal Medicine Physician · Belchertown, MA

Mario Lysse, MD is an internal medicine physician with a practice address in Belchertown, Massachusetts, and NPI 1801106059, issued on Oct 20, 2010. Check the license (Massachusetts 246152, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801106059
Name
Mario Lysse
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
246152 MA
Self-reported in NPPES; status is on the state search
Practice location
95 Sargent Street, Belchertown, MA 01007
Phone
(413) 323-7212
Enumerated
Oct 20, 2010
Record last updated
Jul 14, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(413) 967-2524
Medicare enrollment
Enrolled (PECOS I20110803000393); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 95 Sargent Street

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

  1. Hilary Hayden-Moryl, NPFamily Nurse Practitioner1558775221
  2. Bart Soar, M.D.Internal Medicine Physician1013939636

Verify Mario Lysse in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 246152
    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 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.

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2.1 times the Medicare Part D claims of the average internal medicine physician in 2024

6,825 Medicare Part D claims for 575 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 98 claims were for opioids.

  1. Mario Lysse6,825
  2. Specialty average3,176

Most prescribed

  1. Lisinopril375 claims
  2. Atorvastatin Calcium372 claims
  3. Amlodipine Besylate321 claims
  4. Omeprazole290 claims
  5. Levothyroxine Sodium248 claims
  6. Simvastatin187 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

  1. Baystate Medical Practices IncSpringfield, MA

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

Mario Lysse among 6,825 internal medicine physician records in Massachusetts

Mario Lysse, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 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 2010, is newer than 63% of them.

  • NPI issued2010 · 63% of these records are older, 35% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1991 · median 2004 among the 4,103 with a school on file
  • Record last updated2020 · 64% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

3 internal medicine physician records list a practice address in Belchertown

They are 3 of the 152 NPPES records with a practice address in Belchertown, and 6,825 internal medicine physician records in Massachusetts.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Ronald Beauzile, MDBelchertown, MA 010071003062647
  2. Bart Soar, M.D.Belchertown, MA 010071013939636
  3. Charles Cavagnaro, MDBrimfield, MA 010101578597456
  4. Elizabeth Smola, M.D.Brimfield, MA 010101396932612
  5. Alan Calhoun, MDAmherst, MA 010031740259993
  6. Michelle Duffelmeyer, MDAmherst, MA 010031669486395
  7. Charles Hinckley, MDAmherst, MA 010031841238649
  8. Constance Lentz, MDAmherst, MA 010031003883513

Common questions

What is Mario Lysse, MD's NPI number?

Mario Lysse, MD's National Provider Identifier (NPI) is 1801106059, issued on Oct 20, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Mario Lysse, MD located?

The NPPES record lists a practice address at 95 Sargent Street, Belchertown, MA, 01007. Phone: (413) 323-7212. Providers update this record themselves, so call before visiting.

How can I verify Mario Lysse, MD's license?

NPPES lists Massachusetts license number 246152, 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 Mario Lysse, MD prescribe under Medicare Part D?

In 2024, Mario Lysse, MD had 6,825 Medicare Part D claims for 575 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.