Stephen James Fiascone, MD
Gynecologic Oncology Physician · Boston, MA
Stephen James Fiascone, MD is a gynecologic oncology physician with a practice address in Boston, Massachusetts, and NPI 1982967444, issued on Jun 20, 2012. Check the license (Massachusetts 265730, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Stephen James Fiascone
- Credential
- MD
- Primary taxonomy
- Gynecologic Oncology Physician 207VX0201X
- License number
- 265730 MA
Self-reported in NPPES; status is on the state search - Practice location
- 850 Harrison Ave # Yacc5, Boston, MA 02118
- Phone
- (617) 414-2000
- Enumerated
- Jun 20, 2012
- Record last updated
- May 30, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (617) 414-5798
- Entity
- Type 1 · individual
8 nearest gynecologic oncology physician records → All 47 in Massachusetts → Look up another NPI →
Also registered at 850 Harrison Ave # Yacc5
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Stephen James Fiascone in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 265730Check 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 16 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.
Stephen James Fiascone among 47 gynecologic oncology physician records in Massachusetts
Stephen James Fiascone, 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 2012, is newer than 64% of them.
- NPI issued2012 · 64% of these records are older, 30% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2019 · 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 Boston → Gynecologic Oncology Physician nationwide →
The 8 gynecologic oncology physician records with the nearest ZIP codes
- John Durfee, M.D.Boston, MA 021181528041969
- Ross Berkowitz, MDBoston, MA 021151093772782
- Isabela Covelli VelezBoston, MA 021151730760695
- Sarah Feldman, MDBoston, MA 021151902853336
- Colleen Feltmate, MDBoston, MA 021151538144308
- Donald Goldstein, MDBoston, MA 021151689660532
- Beryl Manning-GeistBoston, MA 021151992167670
- Taymaa May, MD, MSCBoston, MA 021151720390719
Common questions
What is Stephen James Fiascone, MD's NPI number?
Stephen James Fiascone, MD's National Provider Identifier (NPI) is 1982967444, issued on Jun 20, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Stephen James Fiascone, MD located?
The NPPES record lists a practice address at 850 Harrison Ave # Yacc5, Boston, MA, 02118. Phone: (617) 414-2000. Providers update this record themselves, so call before visiting.
How can I verify Stephen James Fiascone, MD's license?
NPPES lists Massachusetts license number 265730, 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 Stephen James Fiascone, MD prescribe under Medicare Part D?
In 2024, Stephen James Fiascone, MD had 39 Medicare Part D claims for 16 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.