NPPES file of Aug 9, 2026

Michael Ritt Jaff, DO

Internal Medicine Physician · Boston, MA

Michael Ritt Jaff, DO is an internal medicine physician with a practice address in Boston, Massachusetts, and NPI 1750372884, issued on Oct 28, 2005. Check the license (Massachusetts 220471, 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
1750372884
Name
Michael Ritt Jaff
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
220471 MA
Self-reported in NPPES; status is on the state search
Practice location
55 Fruit St # St5, Boston, MA 02114
Phone
(617) 726-3784
Enumerated
Oct 28, 2005
Record last updated
Jul 18, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(617) 724-0371
Medicaid ID
2077388 MA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Michael Ritt Jaff 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 220471
    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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Industry payments in 2024: $10,098.82

4 payments; by number, the most common kind was food and beverage; the largest payer was Access Vascular Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Jaff$10,099
  2. Specialty average$1,303

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Michael Ritt Jaff among 6,825 internal medicine physician records in Massachusetts

Michael Ritt Jaff, DO is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 88% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 60% of these records are
  • Record last updated2012 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2,320 internal medicine physician records list a practice address in Boston

They are 2,320 of the 41,865 NPPES records with a practice address in Boston, and 6,825 internal medicine physician records in Massachusetts.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Jaime Chang, MDBoston, MA 021141205825197
  2. Jeffrey Engelman, MD PHDBoston, MA 021141538159108
  3. James Evans, MDBoston, MA 021141215939533
  4. Nicolette Fontaine, MDBoston, MA 021141841287174
  5. Nancy Gagliano, MDBoston, MA 021141881680767
  6. Patricia Gibbons, MDBoston, MA 021141619967221
  7. Steven Hersch, MDBoston, MA 021141174512149
  8. Mira Kautzky, M.D.Boston, MA 021141972505402

Common questions

What is Michael Ritt Jaff, DO's NPI number?

Michael Ritt Jaff, DO's National Provider Identifier (NPI) is 1750372884, issued on Oct 28, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Michael Ritt Jaff, DO located?

The NPPES record lists a practice address at 55 Fruit St # St5, Boston, MA, 02114. Phone: (617) 726-3784. Providers update this record themselves, so call before visiting.

How can I verify Michael Ritt Jaff, DO's license?

NPPES lists Massachusetts license number 220471, 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.

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.