John Tsongalis, M.D.
Pediatrics Physician · Northampton, MA
John Tsongalis, M.D. is a pediatrics physician with a practice address in Northampton, Massachusetts, and NPI 1740494343, issued on May 10, 2007. Check the license (Massachusetts 235553, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- John Tsongalis
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- 235553 MA
Self-reported in NPPES; status is on the state search - Practice location
- 76 Carlon Dr Ste B, Northampton, MA 01060
- Phone
- (413) 584-2178
- Enumerated
- May 10, 2007
- Record last updated
- Sep 8, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (413) 923-9312
- Medicare enrollment
- Enrolled (PECOS I20080917000544); accepts Medicare assignment
- Medical or professional school
- University Of Massachusetts Medical School, 2004
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 2,628 in Massachusetts → Look up another NPI →
Verify John Tsongalis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 235553Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18.2 times the Medicare Part D claims of the average pediatrics physician in 2024
6,812 Medicare Part D claims for 569 beneficiaries, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 140 claims were for opioids.
Most prescribed
- Atorvastatin Calcium576 claims
- Losartan Potassium297 claims
- Levothyroxine Sodium263 claims
- Lisinopril262 claims
- Amlodipine Besylate234 claims
- Omeprazole215 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
- Mass General Brigham Medical Group Western Massachusetts IncNorthampton, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Tsongalis among 2,628 pediatrics physician records in Massachusetts
John Tsongalis, M.D. is one of 2,628 pediatrics physician records with a practice address in Massachusetts. 25% 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 52% of them.
- NPI issued2007 · 52% of these records are older, 38% newer
- In a Medicare fileYes · 25% of these records are
- In the CMS Doctors and Clinicians fileYes · 12% of these records are
- Graduated2004 · median 2010 among the 319 with a school on file
- Record last updated2011 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 pediatrics physician records list a practice address in Northampton
They are 23 of the 1,816 NPPES records with a practice address in Northampton, and 2,628 pediatrics physician records in Massachusetts.
All 2,628 in Massachusetts → Every provider in Northampton → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Catherine Bartlett, MDNorthampton, MA 010601447238811
- Lawrence Ciccarelli, D.O.Northampton, MA 010601316022403
- Scott Cochrane, M.D.Northampton, MA 010601366411258
- Jane Cross, M.D.Northampton, MA 010601427027937
- Peter Everett, M.D.Northampton, MA 010601982644001
- Diana Johanson, MDNorthampton, MA 010601295712453
- Eugene Jura, M.D.Northampton, MA 010601043203110
- Peter Kenny, MDNorthampton, MA 010601558340372
Common questions
What is John Tsongalis, M.D.'s NPI number?
John Tsongalis, M.D.'s National Provider Identifier (NPI) is 1740494343, issued on May 10, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Tsongalis, M.D. located?
The NPPES record lists a practice address at 76 Carlon Dr Ste B, Northampton, MA, 01060. Phone: (413) 584-2178. Providers update this record themselves, so call before visiting.
How can I verify John Tsongalis, M.D.'s license?
NPPES lists Massachusetts license number 235553, 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 John Tsongalis, M.D. prescribe under Medicare Part D?
In 2024, John Tsongalis, M.D. had 6,812 Medicare Part D claims for 569 beneficiaries; the average among pediatrics physician prescribers was 375. 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.