Catherine M. Fiore, MD
Critical Care Medicine (Internal Medicine) Physician · Boston, MA
Catherine M. Fiore, MD is a critical care medicine (internal medicine) physician with a practice address in Boston, Massachusetts, and NPI 1174028773, issued on Mar 26, 2018. Check the license (Massachusetts 290750, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Catherine M. Fiore
- Credential
- MD
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- 290750 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit St, Boston, MA 02114
- Phone
- (617) 643-7625
- Enumerated
- Mar 26, 2018
- Record last updated
- May 18, 2024
- Medicaid ID
- 390200000X MA
- Medicare enrollment
- Enrolled (PECOS I20240529001418); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 157 in Massachusetts → Look up another NPI →
Also registered at 55 Fruit St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Catherine M. Fiore in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 290750Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024
203 Medicare Part D claims for 39 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 47% of claims.
Most prescribed
- Albuterol Sulfate Hfa26 claims
- Azithromycin18 claims
- Breztri Aerosphere18 claims
- Ventolin Hfa17 claims
- Breo Ellipta14 claims
- Prednisone14 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.
Industry payments in 2024: $12,750.38
4 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 2,708 providers of this specialty with any payment received $2,958.68 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
- Harvard Medical Faculty Phys AT Beth Israel Deaconess Med Ctr IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catherine M. Fiore among 157 critical care medicine (internal medicine) physician records in Massachusetts
Catherine M. Fiore, MD is one of 157 critical care medicine (internal medicine) physician records with a practice address in Massachusetts. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 88% of them.
- NPI issued2018 · 88% of these records are older, 8% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2018 · median 2005 among the 116 with a school on file
- Record last updated2024 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Massachusetts
There are 157 critical care medicine (internal medicine) physician records in Massachusetts.
All 157 in Massachusetts → Every provider in Boston → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Edward Bittner, MD PHDBoston, MA 021141215912456
- Richard Channick, M.D.Boston, MA 021141144255886
- Alexandra Cist, MDBoston, MA 021141659344091
- Ashwin Dharmadhikari, MDBoston, MA 021141710968664
- Katherine Dudley, M.D.Boston, MA 021141245497619
- Jean Elrick, MDBoston, MA 021141275524993
- Ming-Hui Fan, MDBoston, MA 021141063561694
- Fiona Gibbons, MDBoston, MA 021141720079288
Common questions
What is Catherine M. Fiore, MD's NPI number?
Catherine M. Fiore, MD's National Provider Identifier (NPI) is 1174028773, issued on Mar 26, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Catherine M. Fiore, MD located?
The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (617) 643-7625. Providers update this record themselves, so call before visiting.
How can I verify Catherine M. Fiore, MD's license?
NPPES lists Massachusetts license number 290750, 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 Catherine M. Fiore, MD prescribe under Medicare Part D?
In 2024, Catherine M. Fiore, MD had 203 Medicare Part D claims for 39 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. 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.