Dr. John Tsongalis, MD
- Medicare services, 2024
- 1,834
- Medicare patients, 2024
- 444
- Part D claims, 2024
- 6,812
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- 22 Atwood Dr, Northampton, MA 01060
- Practice phone
- Call (413) 582-2898
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mass General Brigham Medical Group Western Massachusetts Inc
Northampton, Massachusetts
Find Dr. Tsongalis' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. John Tsongalis is a pediatrician in Northampton, Massachusetts
Dr. Tsongalis practices at Mass General Brigham Medical Group Western Massachusetts Inc in Northampton, Massachusetts.
Dr. Tsongalis' NPI, 1740494343, was assigned on May 10, 2007. Dr. Tsongalis graduated from University of Massachusetts Medical School in 2004. Dr. Tsongalis holds Massachusetts license 235553.
- NPI
- 1740494343NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527135565
- NPI enumeration date
- May 10, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (413) 582-2898
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Tsongalis practices at Mass General Brigham Medical Group Western Massachusetts Inc in Northampton, Massachusetts
Dr. Tsongalis' primary practice is Mass General Brigham Medical Group Western Massachusetts Inc, at 22 Atwood Dr, Northampton, MA 01060 in Hampshire County. The practice phone is (413) 582-2898.
- Mass General Brigham Medical Group Western Massachusetts Inc22 Atwood Dr, Northampton, MA 01060 · Hampshire CountyPhone(413) 582-2898
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John Tsongalis is affiliated with 5 sites of care and 1 medical group
Dr. Tsongalis' primary practice is Mass General Brigham Medical Group Western Massachusetts Inc in Northampton, Massachusetts. Dr. Tsongalis is also affiliated with Cooley Dickinson Hospital. The medical group on file is Mass General Brigham Medical Group Western Massachusetts. Dmand AI also links Dr. Tsongalis to 1 more group practice or clinic, 1 home health agency and 1 hospice, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John Tsongalis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tsongalis practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mass General Brigham Medical Group Western Massachusetts Inc | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Tsongalis is one of 2,101 pediatricians in Massachusetts
Pediatrics is Dr. Tsongalis' primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Tsongalis is licensed in Massachusetts.
Specialties and state licenses
- Pediatrics, MassachusettsPrimary
Pediatricians near Dr. Tsongalis
Counts of pediatricians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. John Tsongalis billed Medicare for 1,834 services in 2024
CMS data shows 1,834 Medicare services from Dr. Tsongalis across 17 procedure codes in 2024, for 444 Medicare patients. Medicare paid $136,001 for them. Every service was in an office.
Dr. Tsongalis' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0362024: 9944%
- Other services
- 2023: 3502024: 722106%
- Tests and treatments
- 2023: 1392024: 9730%
- Lab and pathology
- 2023: 02024: 21
- Surgery
- 2023: 122024: 0100%
Dr. Tsongalis compared with the Massachusetts median for pediatricians, 2024
- Dr. Tsongalis
- Massachusetts median
- Medicare services
- 1,834vs 14612.6 times
- Medicare patients
- 444vs 904.9 times
- Part D claims
- 5,953vs 20297.6 times
Medians across 283 pediatricians in Massachusetts with Dmand AI profiles that report each measure.
Dr. Tsongalis' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Tsongalis treated 444 Medicare patients in 2024, average age 73
CMS counts 444 Medicare patients who saw Dr. Tsongalis in 2024. The largest group is 65 to 74, with 207 patients. 66% of them have high cholesterol, and 64% have high blood pressure. 14% are also on Medicaid. Their average risk score is 0.92, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Tsongalis' median patient age at 71, with 42% women.
Dr. Tsongalis' Medicare patients by age, 2024
Dr. Tsongalis' Medicare patients by sex, 2024
- Women19444%
- Men25056%
Chronic conditions among Dr. Tsongalis' Medicare patients, 2024
- High cholesterol66%
- High blood pressure64%
- Arthritis40%
- Mood disorders24%
- Anxiety22%
- Depression21%
- Ischemic heart disease18%
- Atrial fibrillation16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tsongalis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women42%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Tsongalis wrote 6,812 Medicare Part D claims in 2024
In 2024, Dr. Tsongalis wrote 6,812 Medicare Part D claims for 569 patients. 88% of them were for generic drugs. CMS names the drug for 5,953 of them, across 99 drugs with 11 or more claims each, at $458,023 in total drug cost. In 2023, CMS named 5,748 claims across 99 drugs.
Dr. Tsongalis' Part D claims by kind of drug, 2024
- Generic5,992 claims88%
- Brand-name798 claims12%
- Other22 claims0%
Dr. Tsongalis' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Tsongalis' Part D claims, 2024
- Opioids2%140 of 6,812 claims
- Antibiotics1%93 of 6,812 claims
- Antipsychotics, patients 65 and over0%15 of 6,812 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 5,7482024: 5,9534%
Drugs named by CMS: 99 in 2024, 99 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. John Tsongalis offers telehealth to Medicare patients
Dr. Tsongalis accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Tsongalis as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. John Tsongalis graduated from University of Massachusetts Medical School
Dr. Tsongalis graduated from University of Massachusetts Medical School in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Tsongalis's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John Tsongalis
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. John Tsongalis' NPI number?
Dr. John Tsongalis' NPI number is 1740494343. It was assigned on May 10, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. John Tsongalis?
Dr. John Tsongalis is a pediatrician in Northampton, Massachusetts. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. John Tsongalis practice?
Dr. Tsongalis practices at 22 Atwood Dr, Northampton, MA 01060. Dr. Tsongalis' primary practice is Mass General Brigham Medical Group Western Massachusetts Inc in Northampton, Massachusetts. Dmand AI also links Dr. Tsongalis to 1 group practice or clinic, 1 home health agency and 1 hospice.
What is Dr. John Tsongalis' office phone number?
The practice phone on file for Dr. Tsongalis is (413) 582-2898.
What is Dr. John Tsongalis' medical license number?
Dr. Tsongalis holds Massachusetts license 235553.
Which hospitals is Dr. John Tsongalis affiliated with?
Dr. Tsongalis is affiliated with Cooley Dickinson Hospital.
What medical group is Dr. John Tsongalis part of?
Dr. Tsongalis is linked to Mass General Brigham Medical Group Western Massachusetts.
Does Dr. John Tsongalis accept Medicare?
Yes. CMS data shows Dr. Tsongalis billed Medicare for 1,834 services in 2024, and Dr. Tsongalis accepts Medicare assignment.
Does Dr. John Tsongalis offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Tsongalis as offering telehealth services.
How many Medicare patients does Dr. John Tsongalis see?
CMS counts 444 Medicare patients who saw Dr. Tsongalis in 2024, with an average age of 73.
Show 4 more questionsShow fewer questions
What services does Dr. John Tsongalis bill to Medicare?
In 2024, Dr. Tsongalis' most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and medicare service (G2211).
Where did Dr. John Tsongalis go to medical school?
Dr. Tsongalis graduated from University of Massachusetts Medical School in 2004.
What drugs does Dr. John Tsongalis prescribe most?
In 2024 Medicare Part D data, Dr. Tsongalis' most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Levothyroxine Sodium.
How long has Dr. John Tsongalis been practicing?
Dr. Tsongalis graduated from medical school in 2004, 22 years ago.
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