STEVEN NICHOLAS BALDASSANO MD
NPI 1417585076
Internal Medicine in Boston, MA
About Steven Nicholas Baldassano Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEVEN NICHOLAS BALDASSANO MD (NPI 1417585076) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (284140) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, maintains a secondary practice location in Newton, and is a graduate of Perelman School Of Med At The University Of Pennsylvania (2020).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Steven Nicholas Baldassano 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 Steven Baldassano 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 and New Hampshire enrollments
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Boston, MA 02109
- Reassigned Medicare billing, Massachusetts enrollment
- 1,317 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.
Physician 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 Steven Baldassano's NPI number?
The NPI number for Steven Baldassano is 1417585076. It was assigned to this individual provider in the NPPES registry on March 30, 2020.
Where is Steven Baldassano located?
Steven Baldassano practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (617) 726-2000.
What is Steven Baldassano's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Steven Baldassano enrolled in Medicare?
Yes. Steven Baldassano 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 Steven Baldassano's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Steven Baldassano reassigns Medicare benefits to 3 organizations: Massachusetts General Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA) and Atrius Health, Inc. (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 Steven Baldassano's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Steven Baldassano was last updated on May 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months 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.
# Steven Nicholas Baldassano, MD · NPI 1417585076
Internal Medicine physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 30, 2020.
## Identity
- **NPI:** 1417585076 (Entity type: Individual)
- **Enumerated:** March 30, 2020
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 284140 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 FRUIT ST, Boston, MA 02114-2696
- **Phone:** (617) 726-2000
## 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); Atrius Health, Inc. (NPI 1265646921, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Perelman School Of Med At The University Of Pennsylvania, class of 2020
## Record status
- **NPPES last updated:** May 16, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1417585076) · Data from the CMS NPPES public registry.