NPPES file of Aug 9, 2026

Saba Beg, M.D.

Rheumatology Physician · Boston, MA

Saba Beg, M.D. is a rheumatology physician with a practice address in Boston, Massachusetts, and NPI 1982857793, issued on Oct 24, 2008. Check the license (Massachusetts 273805, 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
1982857793
Name
Saba Beg
Credential
M.D.
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
273805 MA
Self-reported in NPPES; status is on the state search
Practice location
55 Fruit St, Boston, MA 02114
Phone
(617) 726-7938
Enumerated
Oct 24, 2008
Record last updated
May 27, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20180620000828); accepts Medicare assignment
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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Also registered at 55 Fruit St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Affan Aamir, MD, PHARMD, RPHStudent in an Organized Health Care Education/Training Program1821890377
  2. Matthew AbadirAnesthesiology Physician1699120550
  3. Taimur AbbasiInternal Medicine Physician1841673522
  4. Megan Abbott, MDAnesthesiology Physician1730839333
  5. Moustafa AbdallaStudent in an Organized Health Care Education/Training Program1952046062
  6. Shadi Abdar Esfahani, MD, MPHDiagnostic Radiology Physician1497137590

Verify Saba Beg 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 273805
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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95% fewer Medicare Part D claims than the average rheumatology physician in 2024

108 Medicare Part D claims for 21 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.

  1. Saba Beg108
  2. Specialty average1,978

Most prescribed

  1. Prednisone43 claims
  2. Methotrexate18 claims
  3. Hydroxychloroquine Sulfate17 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: $203.36

9 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. 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.

  1. Saba Beg$203.36
  2. Specialty average$8,538.33

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

  1. Revere Medical OF Massachusetts PCNorwood, MA

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

Saba Beg among 343 rheumatology physician records in Massachusetts

Saba Beg, 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 2008, is newer than 62% of them.

  • NPI issued2008 · 62% of these records are older, 31% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2004 · median 2004 among the 212 with a school on file
  • Record last updated2018 · 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.

The 8 rheumatology physician records with the nearest ZIP codes

  1. Syed Ahmed, M.D.Boston, MA 021141407829948
  2. Sheila Arvikar, M.D.Boston, MA 021141881721249
  3. Donald Bloch, MDBoston, MA 021141609857739
  4. Kurt Bloch, MDBoston, MA 021141326020652
  5. Marcy Bolster, MDBoston, MA 021141154439198
  6. Flavia Castelino, M.D.Boston, MA 021141962611301
  7. Robert Friday, MD PHDBoston, MA 021141053393074
  8. Nancy Kim, M.D.Boston, MA 021141669447090

Common questions

What is Saba Beg, M.D.'s NPI number?

Saba Beg, M.D.'s National Provider Identifier (NPI) is 1982857793, issued on Oct 24, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Saba Beg, M.D. located?

The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (617) 726-7938. Providers update this record themselves, so call before visiting.

How can I verify Saba Beg, M.D.'s license?

NPPES lists Massachusetts license number 273805, 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 Saba Beg, M.D. prescribe under Medicare Part D?

In 2024, Saba Beg, M.D. had 108 Medicare Part D claims for 21 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.