DR. MICHAEL ANDREW GILLETTE MD PHD
NPI 1619945276
Internal Medicine - Critical Care Medicine in Boston, MA
About Dr. Michael Andrew Gillette Md Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MICHAEL ANDREW GILLETTE MD PHD (NPI 1619945276) is an individual critical care medicine provider in Boston, Massachusetts, licensed in Massachusetts (154750) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Cambridge Health Alliance, and is a graduate of Harvard Medical School (1995).
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 5
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 Andrew Gillette Md Phd 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 Gillette 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
Cambridge, MA 02139
- Reassigned Medicare billing, Massachusetts enrollment
- 719 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.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Cambridge Health Alliance
Acute Care Hospitals · Cambridge, MAMassachusetts General Hospital
Acute Care Hospitals · Boston, MANewton-Wellesley Hospital
Acute Care Hospitals · Newton, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02114 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BOSTON, MA 02114
BOSTON, MA 02114
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 Gillette's NPI number?
The NPI number for Michael Gillette is 1619945276. It was assigned to this individual provider in the NPPES registry on March 9, 2006.
Where is Michael Gillette located?
Michael Gillette practices at 55 Fruit St Pulmonary And Critical Care Grb 645, Boston, MA 02114. The listed phone number is (617) 726-1721.
What is Michael Gillette's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Michael Gillette enrolled in Medicare?
Yes. Michael Gillette 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 Gillette's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Gillette reassigns Medicare benefits to 3 organizations: Massachusetts General Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA) and Cambridge Public Health Commission (Cambridge, 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 Gillette's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Gillette accept?
Health plans from Taro Health list Michael Gillette 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.
Is Michael Gillette affiliated with any hospitals?
According to CMS data, Michael Gillette is affiliated with Cambridge Health Alliance, Massachusetts General Hospital and Newton-Wellesley Hospital.
When was this NPI record last updated?
The NPPES record for Michael Gillette was last updated on November 16, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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 Andrew Gillette, MD PHD · NPI 1619945276
Critical Care Medicine physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 9, 2006.
## Identity
- **NPI:** 1619945276 (Entity type: Individual)
- **Enumerated:** March 9, 2006
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** 154750 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 FRUIT ST, PULMONARY AND CRITICAL CARE GRB 645, Boston, MA 02114-2696
- **Phone:** (617) 726-1721 · **Fax:** (617) 724-9948
## 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); Cambridge Public Health Commission (NPI 1932313228, Cambridge, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Harvard Medical School, class of 1995
## Record status
- **NPPES last updated:** November 16, 2012
- **Other identifiers:** Other J25869 (MA); Medicare UPIN H80213; Medicaid 2002710 (MA); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1619945276) · Data from the CMS NPPES public registry.