Dr. Vanessa Mitsialis, MD
- Medicare services, 2024
- 61
- Medicare patients, 2024
- 52
- Part D claims, 2024
- 116
- Hospital affiliations
- 1
- Industry payments
- $36
- Practice address
- 75 Francis Street, Boston, MA 02115
- Practice phone
- Call (617) 732-5500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mitsialis' professional email, personal email and mobile number
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Dr. Vanessa Mitsialis is a gastroenterologist in Boston, Massachusetts
Dr. Mitsialis practices at Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Mitsialis' NPI, 1184062705, was assigned on June 5, 2013. Dr. Mitsialis graduated from Harvard Medical School in 2013. Dr. Mitsialis holds Massachusetts license 279791.
- NPI
- 1184062705NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9931337326
- NPI enumeration date
- June 5, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (617) 732-5500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Vanessa Mitsialis practices at Brigham and Women's Hospital in Boston, Massachusetts
Dr. Mitsialis' primary practice is Brigham and Women's Hospital, at 75 Francis Street, Boston, MA 02115 in Suffolk County. The practice phone is (617) 732-5500.
- Brigham and Women's Hospital75 Francis Street, Boston, MA 02115 · Suffolk CountyPhone(617) 732-5500
Source: Dmand AI Affiliation Data
Dr. Vanessa Mitsialis is affiliated with 2 sites of care and 1 medical group
Dr. Mitsialis' primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. The medical group on file is Brigham and Women's Hospital. Dmand AI also links Dr. Mitsialis to 1 more hospital outpatient department, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Vanessa Mitsialis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mitsialis practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Brigham and Women's Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Mass General Brigham and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Vanessa Mitsialis is one of 597 gastroenterologists in Massachusetts
Gastroenterology is Dr. Mitsialis' primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Mitsialis is licensed in Massachusetts.
Specialties and state licenses
- Gastroenterology, MassachusettsPrimary
Gastroenterologists near Dr. Mitsialis
Counts of gastroenterologists 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. Vanessa Mitsialis billed Medicare for 61 services in 2024
CMS data shows 61 Medicare services from Dr. Mitsialis across 3 procedure codes in 2024, for 52 Medicare patients. Medicare paid $4,767 for them. Every service was in an office.
Dr. Mitsialis' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 972024: 2871%
- Other services
- 2023: 232024: 1822%
- Surgery
- 2023: 372024: 1559%
Dr. Mitsialis compared with the Massachusetts median for gastroenterologists, 2024
- Dr. Mitsialis
- Massachusetts median
- Medicare services
- 61vs 51988% below
- Medicare patients
- 52vs 34385% below
- Part D claims
- 19vs 30094% below
Medians across 583 gastroenterologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Mitsialis' 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. Mitsialis and other gastroenterologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Vanessa Mitsialis treated 52 Medicare patients in 2024, average age 70
CMS counts 52 Medicare patients who saw Dr. Mitsialis in 2024. The largest group is 65 to 74, with 27 patients. 67% of them have high cholesterol, and 56% have high blood pressure. Their average risk score is 1.50, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Mitsialis' median patient age at 58, with 63% women.
Dr. Mitsialis' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Mitsialis' Medicare patients by sex, 2024
- Women3465%
- Men1835%
Chronic conditions among Dr. Mitsialis' Medicare patients, 2024
- High cholesterol67%
- High blood pressure56%
- Arthritis38%
- Anxiety29%
- Mood disorders29%
- Depression25%
- Diabetes21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mitsialis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women63%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Vanessa Mitsialis wrote 116 Medicare Part D claims in 2024
In 2024, Dr. Mitsialis wrote 116 Medicare Part D claims for 38 patients. 74% of them were for generic drugs. CMS names the drug for 19 of them, across 1 drug with 11 or more claims each, at $18,395 in total drug cost. In 2023, CMS named 22 claims across 2 drugs.
Dr. Mitsialis' Part D claims by kind of drug, 2024
- Generic86 claims74%
- Brand-name30 claims26%
Dr. Mitsialis' 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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 222024: 1914%
Drugs named by CMS: 1 in 2024, 2 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. Vanessa Mitsialis offers telehealth to Medicare patients
Dr. Mitsialis accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Mitsialis as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 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. Vanessa Mitsialis received $36 in industry payments from 2017 to 2025
CMS Open Payments shows 2 general payments to Dr. Mitsialis from 2 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $20.
General payments to Dr. Mitsialis by program year, 2017 to 2025
Companies that paid Dr. Mitsialis the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Vanessa Mitsialis graduated from Harvard Medical School
Dr. Mitsialis graduated from Harvard Medical School in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Vanessa Mitsialis'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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) |
| 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. Vanessa Mitsialis
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. Vanessa Mitsialis' NPI number?
Dr. Vanessa Mitsialis' NPI number is 1184062705. It was assigned on June 5, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Vanessa Mitsialis?
Dr. Vanessa Mitsialis is a gastroenterologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Vanessa Mitsialis practice?
Dr. Mitsialis practices at 75 Francis Street, Boston, MA 02115. Dr. Mitsialis' primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Mitsialis to 1 hospital outpatient department.
What is Dr. Vanessa Mitsialis' office phone number?
The practice phone on file for Dr. Mitsialis is (617) 732-5500.
What is Dr. Vanessa Mitsialis' medical license number?
Dr. Mitsialis holds Massachusetts license 279791.
Which hospitals is Dr. Vanessa Mitsialis affiliated with?
Dr. Mitsialis practices at Brigham and Women's Hospital in Boston, Massachusetts.
What medical group is Dr. Vanessa Mitsialis part of?
Dr. Mitsialis is linked to Brigham and Women's Hospital.
Does Dr. Vanessa Mitsialis accept Medicare?
Yes. CMS data shows Dr. Mitsialis billed Medicare for 61 services in 2024, and Dr. Mitsialis accepts Medicare assignment.
Does Dr. Vanessa Mitsialis offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Mitsialis as offering telehealth services.
How many Medicare patients does Dr. Vanessa Mitsialis see?
CMS counts 52 Medicare patients who saw Dr. Mitsialis in 2024, with an average age of 70.
Show 5 more questionsShow fewer questions
What services does Dr. Vanessa Mitsialis bill to Medicare?
In 2024, Dr. Mitsialis' most billed Medicare services were office visit, established patient (99214), medicare service (G0500) and surgery: digestive system (45380).
Where did Dr. Vanessa Mitsialis go to medical school?
Dr. Mitsialis graduated from Harvard Medical School in 2013.
What drugs does Dr. Vanessa Mitsialis prescribe most?
In 2024 Medicare Part D data, Dr. Mitsialis' most prescribed drugs by claims were Mesalamine.
Has Dr. Vanessa Mitsialis received payments from drug or device companies?
CMS Open Payments shows $36 in general payments to Dr. Mitsialis from 2 companies from 2017 to 2025. The largest total came from Gilead Sciences, Inc.
How long has Dr. Vanessa Mitsialis been practicing?
Dr. Mitsialis graduated from medical school in 2013, 13 years ago.
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