Vasileios Kyttaris, M.D.
Rheumatology Physician · Boston, MA
Vasileios Kyttaris, M.D. is a rheumatology physician with a practice address in Boston, Massachusetts, and NPI 1851344139, issued on May 18, 2006. Check the license on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Vasileios Kyttaris
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- MD33326 DC
Self-reported in NPPES; status is on the state search - Practice location
- 110 Francis St, Boston, MA 02215
- Phone
- (617) 632-8658
- Enumerated
- May 18, 2006
- Record last updated
- Aug 26, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20061117000064); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 343 in Massachusetts → Look up another NPI →
Also registered at 110 Francis St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Abdulrahman Alturki, MBBS,MSC,FRCSCStudent in an Organized Health Care Education/Training Program1467905406
- Michael Apstein, MDGastroenterology Physician1609854603
Verify Vasileios Kyttaris in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% fewer Medicare Part D claims than the average rheumatology physician in 2024
1,301 Medicare Part D claims for 198 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 20 claims were for opioids.
Most prescribed
- Prednisone170 claims
- Methotrexate154 claims
- Hydroxychloroquine Sulfate73 claims
- Alendronate Sodium66 claims
- Rinvoq60 claims
- Enbrel Sureclick55 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: $6,173.07
13 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 4,486 providers of this specialty with any payment received $8,538.33 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).
Vasileios Kyttaris among 343 rheumatology physician records in Massachusetts
Vasileios Kyttaris, M.D. is one of 343 rheumatology physician records with a practice address in Massachusetts. 73% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 45% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1994 · median 2004 among the 212 with a school on file
- Record last updated2008 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Massachusetts
There are 343 rheumatology physician records in Massachusetts.
All 343 in Massachusetts → Every provider in Boston → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Ingrid Avalos, MDBoston, MA 022151063440733
- Toby Bates, D.O.Boston, MA 022151033234604
- Arturo Diaz, MDBoston, MA 022151245315852
- Jennifer Nashel, MDBoston, MA 022151316195613
- Sara Penn, M.D.Boston, MA 022151386629095
- Mark Robbins, MDBoston, MA 022151609938869
- Stuart Rosenberg, M.D.Boston, MA 022151629015805
- Robert Shmerling, M.D.Boston, MA 022151841289550
Common questions
What is Vasileios Kyttaris, M.D.'s NPI number?
Vasileios Kyttaris, M.D.'s National Provider Identifier (NPI) is 1851344139, issued on May 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Vasileios Kyttaris, M.D. located?
The NPPES record lists a practice address at 110 Francis St, Boston, MA, 02215. Phone: (617) 632-8658. Providers update this record themselves, so call before visiting.
How can I verify Vasileios Kyttaris, M.D.'s license?
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 Vasileios Kyttaris, M.D. prescribe under Medicare Part D?
In 2024, Vasileios Kyttaris, M.D. had 1,301 Medicare Part D claims for 198 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.