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Dr. Larissa Mattei, MD
NPI1942730817PAC ID9032489000
- Medicare services, 2024
- 18
- Medicare patients, 2024
- 28
- Part D claims, 2024
- 39
- Publications
- 9
- MIPS score, 2024
- 100
- Practice address
- 55 North Ave, Mendon, MA 01756
- Practice phone
- Call (508) 334-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Umass Memorial Medical Center
Mendon, Massachusetts
Find Dr. Mattei's professional email, personal email and mobile number
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Dr. Larissa Mattei is a gynecologic oncologist in Mendon, Massachusetts
Dr. Mattei practices at Umass Memorial Medical Center in Mendon, Massachusetts.
Dr. Mattei's NPI, 1942730817, was assigned on June 14, 2017. Dr. Mattei graduated from Tufts University School of Medicine in 2017. Dr. Mattei holds Massachusetts license 1020114.
NPI and contact details
- NPI
- 1942730817NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032489000
- NPI enumeration date
- June 14, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (508) 334-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Larissa Mattei practices at Umass Memorial Medical Center in Mendon, Massachusetts
Dr. Mattei's primary practice is Umass Memorial Medical Center, at 55 North Ave, Mendon, MA 01756 in Worcester County. The practice phone is (508) 334-1000.
- Umass Memorial Medical Center55 North Ave, Mendon, MA 01756 · Worcester CountyPhone(508) 334-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Larissa Mattei is affiliated with 5 sites of care and 1 medical group
Dr. Mattei's primary practice is Umass Memorial Medical Center in Mendon, Massachusetts. Dr. Mattei is also affiliated with UMass Memorial Medical Center - University Campus. The medical group on file is UMass Memorial Medical Group. Dmand AI also links Dr. Mattei to 2 more hospitals and 1 group practice or clinic, each named with a free account.
Umass Memorial Medical CenterPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Larissa Mattei's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mattei practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Umass Memorial Medical Center | 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. Larissa Mattei is one of 37 gynecologic oncologists in Massachusetts
Gynecologic oncology is Dr. Mattei's primary specialty in the NPI Registry, under taxonomy code 207VX0201X. Dr. Mattei is licensed in Massachusetts.
Specialties and state licenses
- Gynecologic oncology, MassachusettsPrimary
Gynecologic oncologists near Dr. Mattei
Counts of gynecologic oncologists with a Dmand AI profile, by place and practice. Each opens the list.
37gynecologic oncologists in Massachusetts
4gynecologic oncologists in Mendon
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Larissa Mattei billed Medicare for 18 services in 2024
CMS data shows 18 Medicare services from Dr. Mattei across 1 procedure code in 2024, all of them office visits, for 28 Medicare patients. Medicare paid $2,053 for them. Every service was in an office.
Medicare services, 202418
Medicare patients28
Paid by Medicare$2,053
Procedure codes1
Dr. Mattei compared with the Massachusetts median for gynecologic oncologists, 2024
- Dr. Mattei
- Massachusetts median
- Medicare services
- 18vs 20391% below
- Medicare patients
- 28vs 13679% below
Medians across 37 gynecologic oncologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Mattei'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. Mattei and other gynecologic oncologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Larissa Mattei treated 28 Medicare patients in 2024, average age 72
CMS counts 28 Medicare patients who saw Dr. Mattei in 2024. The largest group is 65 to 74, with 14 patients. 75% of them have high blood pressure, and 64% have high cholesterol. Their average risk score is 1.63, 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. Mattei's median patient age at 71, with 100% women.
Medicare patients, 202428
Average age72
Average risk score1.63
Dr. Mattei's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Mattei's Medicare patients, 2024
- High blood pressure75%
- High cholesterol64%
- Cancer50%
- Anxiety43%
- Arthritis39%
- Mood disorders39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mattei's 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
- Women100%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Larissa Mattei wrote 39 Medicare Part D claims in 2024
In 2024, Dr. Mattei wrote 39 Medicare Part D claims for 24 patients. 92% of them were for generic drugs.
Part D claims, 202439
Part D patients24
Dr. Mattei's Part D claims by kind of drug, 2024
- Generic36 claims92%
- Brand-name and other3 claims8%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Larissa Mattei scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Mattei for performance year 2024, reported through an alternative payment model (APM). Dr. Mattei accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 15 procedures of removal of the uterus by Dr. Mattei, more than 89% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Mattei's MIPS scores, performance year 2024
- 100of 100Final score
- 83of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Mattei ranks in Medicare procedure volume
- Removal of the uterus
- 89th percentile15 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Larissa Mattei has 9 publications on record
Dmand AI links 9 papers to Dr. Mattei, published from 2011 to 2024. 2024 was the busiest year, with 3. The most frequent topics are Ovarian Neoplasms, Parental Leave and Uterine Cervical Neoplasms. Dr. Mattei has published most often in Obstet Gynecol. Dr. Mattei's most frequent co-authors are Kaitlyn R. Banning and Emma L. Barber.
Papers9
Years published2011 to 2024
Dr. Mattei's papers by year, 2011 to 2024
Topics Dr. Mattei writes about most
- Ovarian Neoplasms
- Parental Leave
- Uterine Cervical Neoplasms
Dr. Mattei's most frequent co-authors
Recent publications by Dr. Mattei
BRCA2 ProteinGenes, BRCA1Genes, BRCA2
Clin Obstet Gynecol
Attitude of Health PersonnelFaculty, MedicalGynecology
Patient Educ Couns
CommunicationMedical OncologyOutpatients
Ethnic and Racial MinoritiesEthnicityGenital Neoplasms, Female
See who Dr. Mattei researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Mattei works with, so you can find a warm path to the right gynecologic oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Larissa Mattei received $2,040 in industry payments from 2021 to 2025
CMS Open Payments shows 21 general payments to Dr. Mattei from 10 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 50% of the total. Intuitive Surgical, Inc. paid the most, $1,029.
General payments to Dr. Mattei by program year, 2021 to 2025
General payments to Dr. Mattei by kind, 2021 to 2025
$2Kin total
- Food and beverage$1,02150%
- Education$1,02050%
Companies that paid Dr. Mattei the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Larissa Mattei graduated from Tufts University School of Medicine
Dr. Mattei graduated from Tufts University School of Medicine in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Larissa Mattei'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 (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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Larissa Mattei
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What is Dr. Larissa Mattei's NPI number?
Dr. Larissa Mattei's NPI number is 1942730817. It was assigned on June 14, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Larissa Mattei?
Dr. Larissa Mattei is a gynecologic oncologist in Mendon, Massachusetts. The primary specialty in the NPI Registry is Gynecologic Oncology Physician (taxonomy code 207VX0201X).
Where does Dr. Larissa Mattei practice?
Dr. Mattei practices at 55 North Ave, Mendon, MA 01756. Dr. Mattei's primary practice is Umass Memorial Medical Center in Mendon, Massachusetts. Dmand AI also links Dr. Mattei to 2 hospitals and 1 group practice or clinic.
What is Dr. Larissa Mattei's office phone number?
The practice phone on file for Dr. Mattei is (508) 334-1000.
What is Dr. Larissa Mattei's medical license number?
Dr. Mattei holds Massachusetts license 1020114.
Which hospitals is Dr. Larissa Mattei affiliated with?
Dr. Mattei is affiliated with UMass Memorial Medical Center - University Campus. Dmand AI links Dr. Mattei to 2 more hospitals.
What medical group is Dr. Larissa Mattei part of?
Dr. Mattei is linked to UMass Memorial Medical Group.
Does Dr. Larissa Mattei accept Medicare?
Yes. CMS data shows Dr. Mattei billed Medicare for 18 services in 2024, and Dr. Mattei accepts Medicare assignment.
What is Dr. Larissa Mattei's MIPS score?
Dr. Mattei's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Larissa Mattei see?
CMS counts 28 Medicare patients who saw Dr. Mattei in 2024, with an average age of 72.
Show 6 more questionsShow fewer questions
What services does Dr. Larissa Mattei bill to Medicare?
In 2024, Dr. Mattei's most billed Medicare services were office visit, established patient (99215).
Where did Dr. Larissa Mattei go to medical school?
Dr. Mattei graduated from Tufts University School of Medicine in 2017.
Has Dr. Larissa Mattei received payments from drug or device companies?
CMS Open Payments shows $2,040 in general payments to Dr. Mattei from 10 companies from 2021 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Larissa Mattei been practicing?
Dr. Mattei graduated from medical school in 2017, 9 years ago.
Does Dr. Larissa Mattei do research?
Dmand AI links 9 publications to Dr. Mattei, published from 2011 to 2024.
Who does Dr. Larissa Mattei publish with?
Dr. Mattei's most frequent co-authors are Kaitlyn R. Banning (1 shared paper) and Emma L. Barber (1 shared paper).
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