Dr. Giovanni A. D'Ambrosio, MD
- Medicare services, 2024
- 132
- Medicare patients, 2024
- 144
- Part D claims, 2024
- 1,063
- Industry payments
- $136
- Affiliated sites
- 1
- Practice address
- 111 Grossman Dr, Braintree, MA 02184
- Practice phone
- Call (617) 421-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Harvard Vanguard Medical Associates
Braintree, Massachusetts
Find Dr. D'Ambrosio's 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. Giovanni A. D'Ambrosio is an internist in Braintree, Massachusetts
Dr. D'Ambrosio practices at Harvard Vanguard Medical Associates in Braintree, Massachusetts.
Dr. D'Ambrosio's NPI, 1598738510, was assigned on February 9, 2006. Dr. D'Ambrosio graduated from Harvard Medical School in 1980. Dr. D'Ambrosio holds Massachusetts license 48496.
- NPI
- 1598738510NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6507812435
- NPI enumeration date
- February 9, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (617) 421-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Giovanni A. D'Ambrosio practices at Harvard Vanguard Medical Associates in Braintree, Massachusetts
Dr. D'Ambrosio's primary practice is Harvard Vanguard Medical Associates, at 111 Grossman Dr, Braintree, MA 02184 in Norfolk County. The practice phone is (617) 421-1000.
- Harvard Vanguard Medical Associates111 Grossman Dr, Braintree, MA 02184 · Norfolk CountyPhone(617) 421-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Giovanni A. D'Ambrosio is affiliated with 2 sites of care and 1 medical group
Dr. D'Ambrosio's primary practice is Harvard Vanguard Medical Associates in Braintree, Massachusetts. The medical group on file is Atrius Health. Dmand AI also links Dr. D'Ambrosio to 1 more group practice or clinic, 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. Giovanni A. D'Ambrosio's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. D'Ambrosio practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Harvard Vanguard Medical Associates | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Giovanni A. D'Ambrosio is one of 5,528 internists in Massachusetts
Internal medicine is Dr. D'Ambrosio's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. D'Ambrosio is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Dr. D'Ambrosio
Counts of internists 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. Giovanni A. D'Ambrosio billed Medicare for 132 services in 2024
CMS data shows 132 Medicare services from Dr. D'Ambrosio across 1 procedure code in 2024, all of them office visits, for 144 Medicare patients. Medicare paid $7,878 for them. Every service was in an office.
Dr. D'Ambrosio's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2262024: 13242%
Dr. D'Ambrosio compared with the Massachusetts median for internists, 2024
- Dr. D'Ambrosio
- Massachusetts median
- Medicare services
- 132vs 43169% below
- Medicare patients
- 144vs 19426% below
- Part D claims
- 586vs 40246% above
Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.
Dr. D'Ambrosio's 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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. D'Ambrosio and other internists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Giovanni A. D'Ambrosio treated 144 Medicare patients in 2024, average age 73
CMS counts 144 Medicare patients who saw Dr. D'Ambrosio in 2024. The largest group is 65 to 74, with 63 patients. 71% of them have high cholesterol, and 56% have high blood pressure. 13% are also on Medicaid. Their average risk score is 0.98, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. D'Ambrosio's median patient age at 48, with 59% women.
Dr. D'Ambrosio's Medicare patients by age, 2024
Dr. D'Ambrosio's Medicare patients by sex, 2024
- Women9365%
- Men5135%
Chronic conditions among Dr. D'Ambrosio's Medicare patients, 2024
- High cholesterol71%
- High blood pressure56%
- Arthritis33%
- Anxiety28%
- Mood disorders26%
- Depression24%
- Osteoporosis24%
- Ischemic heart disease19%
Share of Medicare patients with each condition. A patient can have several.
Dr. D'Ambrosio's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 48
Patient panel by sex, all payers
- Women59%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Giovanni A. D'Ambrosio wrote 1,063 Medicare Part D claims in 2024
In 2024, Dr. D'Ambrosio wrote 1,063 Medicare Part D claims for 499 patients. 80% of them were for generic drugs. CMS names the drug for 586 of them, across 25 drugs with 11 or more claims each, at $50,447 in total drug cost. In 2023, CMS named 151 claims across 5 drugs.
Dr. D'Ambrosio's Part D claims by kind of drug, 2024
- Generic854 claims80%
- Brand-name191 claims18%
- Other18 claims2%
Dr. D'Ambrosio's 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. D'Ambrosio's Part D claims, 2024
- Antibiotics4%44 of 1,063 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: 1512024: 586288%
Drugs named by CMS: 25 in 2024, 5 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. Giovanni A. D'Ambrosio offers telehealth to Medicare patients
Dr. D'Ambrosio accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. D'Ambrosio as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Giovanni A. D'Ambrosio received $136 in industry payments from 2021 to 2022
CMS Open Payments shows 2 general payments to Dr. D'Ambrosio from 2 drug and device companies from 2021 to 2022. Food and beverage make up the largest share, 100% of the total. RxSight Inc paid the most, $115.
General payments to Dr. D'Ambrosio by program year, 2021 to 2022
Companies that paid Dr. D'Ambrosio the most, 2021 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Giovanni A. D'Ambrosio graduated from Harvard Medical School
Dr. D'Ambrosio graduated from Harvard Medical School in 1980.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Giovanni A. D'Ambrosio'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) |
| Industry payments | Open Payments (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. Giovanni A. D'Ambrosio
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. Giovanni A. D'Ambrosio's NPI number?
Dr. Giovanni A. D'Ambrosio's NPI number is 1598738510. It was assigned on February 9, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Giovanni A. D'Ambrosio?
Dr. Giovanni A. D'Ambrosio is an internist in Braintree, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Giovanni A. D'Ambrosio practice?
Dr. D'Ambrosio practices at 111 Grossman Dr, Braintree, MA 02184. Dr. D'Ambrosio's primary practice is Harvard Vanguard Medical Associates in Braintree, Massachusetts. Dmand AI also links Dr. D'Ambrosio to 1 group practice or clinic.
What is Dr. Giovanni A. D'Ambrosio's office phone number?
The practice phone on file for Dr. D'Ambrosio is (617) 421-1000.
What is Dr. Giovanni A. D'Ambrosio's medical license number?
Dr. D'Ambrosio holds Massachusetts license 48496.
What medical group is Dr. Giovanni A. D'Ambrosio part of?
Dr. D'Ambrosio is linked to Atrius Health.
Does Dr. Giovanni A. D'Ambrosio accept Medicare?
Yes. CMS data shows Dr. D'Ambrosio billed Medicare for 132 services in 2024, and Dr. D'Ambrosio accepts Medicare assignment.
Does Dr. Giovanni A. D'Ambrosio offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. D'Ambrosio as offering telehealth services.
How many Medicare patients does Dr. Giovanni A. D'Ambrosio see?
CMS counts 144 Medicare patients who saw Dr. D'Ambrosio in 2024, with an average age of 73.
What services does Dr. Giovanni A. D'Ambrosio bill to Medicare?
In 2024, Dr. D'Ambrosio's most billed Medicare services were office visit, established patient (99213).
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Where did Dr. Giovanni A. D'Ambrosio go to medical school?
Dr. D'Ambrosio graduated from Harvard Medical School in 1980.
What drugs does Dr. Giovanni A. D'Ambrosio prescribe most?
In 2024 Medicare Part D data, Dr. D'Ambrosio's most prescribed drugs by claims were Atorvastatin Calcium, Paxlovid and Simvastatin.
Has Dr. Giovanni A. D'Ambrosio received payments from drug or device companies?
CMS Open Payments shows $136 in general payments to Dr. D'Ambrosio from 2 companies from 2021 to 2022. The largest total came from RxSight Inc.
How long has Dr. Giovanni A. D'Ambrosio been practicing?
Dr. D'Ambrosio graduated from medical school in 1980, 46 years ago.
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