Yumiko Ishizawa, MD PHD MPH
Critical Care Medicine (Anesthesiology) Physician · Boston, MA
Yumiko Ishizawa, MD PHD MPH is a critical care medicine (anesthesiology) physician with a practice address in Boston, Massachusetts, and NPI 1679555965, issued on Nov 14, 2005. Check the license (Massachusetts 224094, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Yumiko Ishizawa
- Credential
- MD PHD MPH
- Primary taxonomy
- Critical Care Medicine (Anesthesiology) Physician 207LC0200X
- License number
- 224094 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit St, Boston, MA 02114
- Phone
- (617) 726-3030
- Enumerated
- Nov 14, 2005
- Record last updated
- Jul 13, 2026
- Medicaid ID
- 2103737 MA
- Medicare enrollment
- Enrolled (PECOS I20050712001000); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest critical care medicine (anesthesiology) physician records → All 69 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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- Megan Abbott, MDAnesthesiology Physician1730839333
- Moustafa AbdallaStudent in an Organized Health Care Education/Training Program1952046062
- Shadi Abdar Esfahani, MD, MPHDiagnostic Radiology Physician1497137590
Verify Yumiko Ishizawa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 224094Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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).
Yumiko Ishizawa among 69 critical care medicine (anesthesiology) physician records in Massachusetts
Yumiko Ishizawa, MD PHD MPH is one of 69 critical care medicine (anesthesiology) physician records with a practice address in Massachusetts. 64% 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, 83% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1985 · median 2004 among the 41 with a school on file
- Record last updated2026 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LC0200X 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 (Anesthesiology) Physician providers in Massachusetts
There are 69 critical care medicine (anesthesiology) physician records in Massachusetts.
All 69 in Massachusetts → Every provider in Boston → Critical Care Medicine (Anesthesiology) Physician nationwide →
The 8 critical care medicine (anesthesiology) physician records with the nearest ZIP codes
- William Benedetto, MDBoston, MA 021141316938608
- Hovig Chitilian, MDBoston, MA 021141447240619
- Frederic Debros, MDBoston, MA 021141912997636
- Kevin Dennehy, MDBoston, MA 021141386634012
- Peter Dunn, MDBoston, MA 021141457336125
- Joseph Frassica, MD DDSBoston, MA 021141083684674
- Dwight Geha, M.D.Boston, MA 021141801879580
- Giora Landesberg, MDBoston, MA 021141649253683
Common questions
What is Yumiko Ishizawa, MD PHD MPH's NPI number?
Yumiko Ishizawa, MD PHD MPH's National Provider Identifier (NPI) is 1679555965, issued on Nov 14, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Yumiko Ishizawa, MD PHD MPH located?
The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (617) 726-3030. Providers update this record themselves, so call before visiting.
How can I verify Yumiko Ishizawa, MD PHD MPH's license?
NPPES lists Massachusetts license number 224094, 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.