Larissa Mattei, MD
Gynecologic Oncology Physician · Worcester, MA
Larissa Mattei, MD is a gynecologic oncology physician with a practice address in Worcester, Massachusetts, and NPI 1942730817, issued on Jun 14, 2017. Check the license (Massachusetts 1020114, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Larissa Mattei
- Credential
- MD
- Primary taxonomy
- Gynecologic Oncology Physician 207VX0201X
- License number
- 1020114 MA
Self-reported in NPPES; status is on the state search - Practice location
- 33 Kendall St, Worcester, MA 01605
- Phone
- (508) 334-1160
- Enumerated
- Jun 14, 2017
- Record last updated
- Aug 12, 2024
- Medicare enrollment
- Enrolled (PECOS I20240916000688); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 2017
- Entity
- Type 1 · individual
8 nearest gynecologic oncology physician records → All 47 in Massachusetts → Look up another NPI →
Also registered at 33 Kendall St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Allocco, M.D.Obstetrics & Gynecology Physician1114313517
- Joshua Altschuler, MDUrology Physician1003471962
- Armando Arroyo, MDReproductive Endocrinology Physician1538188420
- Philip Ayvazian, MDUrology Physician1487654984
- Courtney Barry, ADN, RNDoula1891519526
- Erin Bednarek, N.P.Women's Health Nurse Practitioner1003114794
Verify Larissa Mattei in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 1020114Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average gynecologic oncology physician in 2024
39 Medicare Part D claims for 24 beneficiaries, against an average of 195 among the 1,475 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $309.27
10 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 1,199 providers of this specialty with any payment received $6,387.20 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Umass Memorial Medical Group IncWorcester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Larissa Mattei among 47 gynecologic oncology physician records in Massachusetts
Larissa Mattei, MD is one of 47 gynecologic oncology physician records with a practice address in Massachusetts. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 85% of them.
- NPI issued2017 · 85% of these records are older, 11% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2017 · median 2008 among the 30 with a school on file
- Record last updated2024 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0201X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gynecologic Oncology Physician providers in Massachusetts
There are 47 gynecologic oncology physician records in Massachusetts.
All 47 in Massachusetts → Every provider in Worcester → Gynecologic Oncology Physician nationwide →
The 8 gynecologic oncology physician records with the nearest ZIP codes
- Harrison Ball, M.D.Worcester, MA 016051336130509
- Joanna Cain, M.D.Worcester, MA 016051093859753
- Annette Chen, M.D.Worcester, MA 016051215928593
- Sarah Hughes, M.D.Worcester, MA 016051669663761
- Sharmilee Korets, MDWorcester, MA 016051669622619
- Susan Zweizig, M.D.Worcester, MA 016051992786925
- Caroline Nitschmann, MDBurlington, MA 018051538483003
- Valena Wright, MDBurlington, MA 018051144387432
Common questions
What is Larissa Mattei, MD's NPI number?
Larissa Mattei, MD's National Provider Identifier (NPI) is 1942730817, issued on Jun 14, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Larissa Mattei, MD located?
The NPPES record lists a practice address at 33 Kendall St, Worcester, MA, 01605. Phone: (508) 334-1160. Providers update this record themselves, so call before visiting.
How can I verify Larissa Mattei, MD's license?
NPPES lists Massachusetts license number 1020114, 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 Larissa Mattei, MD prescribe under Medicare Part D?
In 2024, Larissa Mattei, MD had 39 Medicare Part D claims for 24 beneficiaries; the average among gynecologic oncology physician prescribers was 195. 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.