DR. MICHAEL J WHALEN MD
NPI 1902987423
Pediatrics - Pediatric Critical Care Medicine in Boston, MA
About Dr. Michael J Whalen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MICHAEL J WHALEN MD (NPI 1902987423) is an individual pediatric critical care medicine provider in Boston, Massachusetts, licensed in Massachusetts (157539) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Vermont College Of Medicine (1989).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Michael J Whalen Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Michael Whalen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 128 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BOSTON, MA 02114
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Michael Whalen's NPI number?
The NPI number for Michael Whalen is 1902987423. It was assigned to this individual provider in the NPPES registry on October 18, 2006.
Where is Michael Whalen located?
Michael Whalen practices at 55 Fruit Street Ell 3 Pediatric Care Unit, Boston, MA 02114. The listed phone number is (617) 724-4380.
What is Michael Whalen's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Critical Care Medicine, with taxonomy code 2080P0203X.
Is Michael Whalen enrolled in Medicare?
Yes. Michael Whalen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Michael Whalen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Whalen reassigns Medicare benefits to 3 organizations: Massachusetts General Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA) and The Shriners' Hospital For Children (Boston, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Michael Whalen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Whalen accept?
Health plans from AmeriHealth Caritas Next and Taro Health list Michael Whalen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Michael Whalen was last updated on May 20, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Michael J Whalen, MD · NPI 1902987423
Pediatric Critical Care Medicine physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since October 18, 2006.
## Identity
- **NPI:** 1902987423 (Entity type: Individual)
- **Enumerated:** October 18, 2006
- **Primary specialty:** Pediatrics - Pediatric Critical Care Medicine · taxonomy 2080P0203X
- **State license:** 157539 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 FRUIT STREET ELL 3, PEDIATRIC CARE UNIT, Boston, MA 02114-2696
- **Phone:** (617) 724-4380 · **Fax:** (617) 724-2696
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA); The Shriners' Hospital For Children (NPI 1366886525, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Vermont College Of Medicine, class of 1989
## Record status
- **NPPES last updated:** May 20, 2020
- **Other identifiers:** Medicaid 3182550 (MA); Other J19249 (MA); Other 157539 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1902987423) · Data from the CMS NPPES public registry.