Michael J. Whalen, MD
Pediatric Critical Care Medicine Physician · Boston, MA
Michael J. Whalen, MD is a pediatric critical care medicine physician with a practice address in Boston, Massachusetts, and NPI 1902987423, issued on Oct 18, 2006. Check the license (Massachusetts 157539, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Michael J. Whalen
- Credential
- MD
- Primary taxonomy
- Pediatric Critical Care Medicine Physician 2080P0203X
- License number
- 157539 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit Street Ell 3, Boston, MA 02114
- Phone
- (617) 724-4380
- Enumerated
- Oct 18, 2006
- Record last updated
- May 20, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (617) 724-2696
- Medicaid ID
- 3182550 MA
- Medicare enrollment
- Enrolled (PECOS I20040503001204); accepts Medicare assignment
- Medical or professional school
- University Of Vermont College Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest pediatric critical care medicine physician records → All 121 in Massachusetts → Look up another NPI →
Also registered at 55 Fruit Street Ell 3
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Kohane, MD PHDPediatric Critical Care Medicine Physician1457310393
Verify Michael J. Whalen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 157539Check 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).
Michael J. Whalen among 121 pediatric critical care medicine physician records in Massachusetts
Michael J. Whalen, MD is one of 121 pediatric critical care medicine physician records with a practice address in Massachusetts. 43% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 74% newer
- In a Medicare fileYes · 43% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated1989 · median 2010 among the 55 with a school on file
- Record last updated2020 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0203X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Critical Care Medicine Physician providers in Massachusetts
There are 121 pediatric critical care medicine physician records in Massachusetts.
All 121 in Massachusetts → Every provider in Boston → Pediatric Critical Care Medicine Physician nationwide →
The 8 pediatric critical care medicine physician records with the nearest ZIP codes
- Rebecca Aures, MDBoston, MA 021141013302736
- Ryan Carroll, M.D., M.P.HBoston, MA 021141821256876
- Zelda Ghersin, M.D.Boston, MA 021141891100517
- Sarah HendricksonBoston, MA 021141013352277
- Daniel Kohane, MD PHDBoston, MA 021141457310393
- Josephine Lok, MDBoston, MA 021141033100680
- Sarah Neale, DOBoston, MA 021141841921616
- Natan Noviski, MDBoston, MA 021141992779045
Common questions
What is Michael J. Whalen, MD's NPI number?
Michael J. Whalen, MD's National Provider Identifier (NPI) is 1902987423, issued on Oct 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael J. Whalen, MD located?
The NPPES record lists a practice address at 55 Fruit Street Ell 3, Boston, MA, 02114. Phone: (617) 724-4380. Providers update this record themselves, so call before visiting.
How can I verify Michael J. Whalen, MD's license?
NPPES lists Massachusetts license number 157539, 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.