NPPES file of Aug 9, 2026

Varvara Mazina, MD

Gynecologic Oncology Physician · Boston, MA

Varvara Mazina, MD is a gynecologic oncology physician with a practice address in Boston, Massachusetts, and NPI 1902260409, issued on Apr 11, 2016. Check the license (Massachusetts 282529, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1902260409
Name
Varvara Mazina
Credential
MD
Primary taxonomy
Gynecologic Oncology Physician 207VX0201X
License number
282529 MA
Self-reported in NPPES; status is on the state search
Practice location
55 Fruit St # 520A, Boston, MA 02114
Phone
(617) 726-2000
Enumerated
Apr 11, 2016
Record last updated
May 24, 2023
Medicare enrollment
Enrolled (PECOS I20231214002512); accepts Medicare assignment
Medical or professional school
University Of Washington School Of Medicine, 2016
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Varvara Mazina in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 282529
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

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16% fewer Medicare Part D claims than the average gynecologic oncology physician in 2024

163 Medicare Part D claims for 69 beneficiaries, against an average of 195 among the 1,475 providers of this specialty who prescribed in Part D. 27 claims were for opioids.

  1. Varvara Mazina163
  2. Specialty average195

Most prescribed

  1. Oxycodone Hcl21 claims
  2. Metronidazole14 claims
  3. Imiquimod11 claims

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.

Bills Medicare through 3 group practices

  1. Elliot Professional ServicesManchester, NH
  2. Massachusetts General Physicians Organization IncBoston, MA
  3. The General Hospital CorporationBoston, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Varvara Mazina among 47 gynecologic oncology physician records in Massachusetts

Varvara Mazina, 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 2016, is newer than 79% of them.

  • NPI issued2016 · 79% of these records are older, 15% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2016 · median 2008 among the 30 with a school on file
  • Record last updated2023 · 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.

The 8 gynecologic oncology physician records with the nearest ZIP codes

  1. Amy Bregar, MDBoston, MA 021141851687446
  2. Allison Gockley, M.D.Boston, MA 021141114363496
  3. Annekathryn Goodman, MDBoston, MA 021141699765255
  4. Whitfield Growdon, M.D.Boston, MA 021141669530481
  5. William Manning, MDBoston, MA 021141093374225
  6. Alexander Melamed, MD MPHBoston, MA 021141811254154
  7. Alicia Youssef, MDBoston, MA 021141205463783
  8. Ross Berkowitz, MDBoston, MA 021151093772782

Common questions

What is Varvara Mazina, MD's NPI number?

Varvara Mazina, MD's National Provider Identifier (NPI) is 1902260409, issued on Apr 11, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Varvara Mazina, MD located?

The NPPES record lists a practice address at 55 Fruit St # 520A, Boston, MA, 02114. Phone: (617) 726-2000. Providers update this record themselves, so call before visiting.

How can I verify Varvara Mazina, MD's license?

NPPES lists Massachusetts license number 282529, 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 Varvara Mazina, MD prescribe under Medicare Part D?

In 2024, Varvara Mazina, MD had 163 Medicare Part D claims for 69 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.