Robert F. Flaherty, M.D.
Hospitalist Physician · Boston, MA
Robert F. Flaherty, M.D. is a hospitalist physician with a practice address in Boston, Massachusetts, and NPI 1528005238, issued on Jun 1, 2006. Check the license (Massachusetts 209849, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Robert F. Flaherty
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 209849 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit St, Boston, MA 02114
- Phone
- (508) 833-4000
- Enumerated
- Jun 1, 2006
- Record last updated
- Jan 25, 2022
- Medicare enrollment
- Enrolled (PECOS I20050503000794); accepts Medicare assignment
- Medical or professional school
- University Of Massachusetts Medical School, 1998
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 525 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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- Matthew AbadirAnesthesiology Physician1699120550
- Taimur AbbasiInternal Medicine Physician1841673522
- Megan Abbott, MDAnesthesiology Physician1730839333
- Moustafa AbdallaStudent in an Organized Health Care Education/Training Program1952046062
- Shadi Abdar Esfahani, MD, MPHDiagnostic Radiology Physician1497137590
Verify Robert F. Flaherty in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 209849Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% fewer Medicare Part D claims than the average hospitalist physician in 2024
259 Medicare Part D claims for 73 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 20 claims were for opioids.
Most prescribed
- Atorvastatin Calcium17 claims
- Amiodarone Hcl16 claims
- Oxycodone Hcl14 claims
- Tamsulosin Hcl14 claims
- Amlodipine Besylate13 claims
- Metoprolol Succinate12 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 one group practice
- Massachusetts General Physicians Organization IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert F. Flaherty among 525 hospitalist physician records in Massachusetts
Robert F. Flaherty, M.D. is one of 525 hospitalist physician records with a practice address in Massachusetts. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 80% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 86% of these records are
- Graduated1998 · median 2012 among the 449 with a school on file
- Record last updated2022 · 36% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Massachusetts
There are 525 hospitalist physician records in Massachusetts.
All 525 in Massachusetts → Every provider in Boston → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Rani Bhatia, M.D.Boston, MA 021141558717652
- Allison Bond, MDBoston, MA 021141346653490
- Erik Dove, MD, MPHBoston, MA 021141164058293
- Denisa Gace, D.O.Boston, MA 021141356674287
- Syeda Hasan, MDBoston, MA 021141215592696
- An-Qi Hu, M.D.Boston, MA 021141083028534
- Azade Izadi, M.D.Boston, MA 021141801051321
- Akosua Korboe, MDBoston, MA 021141205280815
Common questions
What is Robert F. Flaherty, M.D.'s NPI number?
Robert F. Flaherty, M.D.'s National Provider Identifier (NPI) is 1528005238, issued on Jun 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert F. Flaherty, M.D. located?
The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (508) 833-4000. Providers update this record themselves, so call before visiting.
How can I verify Robert F. Flaherty, M.D.'s license?
NPPES lists Massachusetts license number 209849, 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 Robert F. Flaherty, M.D. prescribe under Medicare Part D?
In 2024, Robert F. Flaherty, M.D. had 259 Medicare Part D claims for 73 beneficiaries; the average among hospitalist physician prescribers was 521. 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.