CLIFFORD MARK BRESLOW M.D.
NPI 1639169758
Anesthesiology in South Weymouth, MA
About Clifford Mark Breslow M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CLIFFORD MARK BRESLOW M.D. (NPI 1639169758) is an individual anesthesiology provider in South Weymouth, Massachusetts, licensed in Massachusetts (77175) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with South Shore Hospital, and is a graduate of Other (1984).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 9
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
Clifford Mark Breslow M.d. 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
2Medicare enrollment records show Clifford Breslow reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Weymouth, MA 02190
- Reassigned Medicare billing, Massachusetts enrollment
- 671 clinicians in this Medicare group
South Weymouth, MA 02190
- Reassigned Medicare billing, Massachusetts enrollment
- 93 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 5
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
South Shore Hospital
Acute Care Hospitals · South Weymouth, MAMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
WEYMOUTH, MA 02190
SOUTH WEYMOUTH, MA 02190
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 Clifford Breslow's NPI number?
The NPI number for Clifford Breslow is 1639169758. It was assigned to this individual provider in the NPPES registry on October 28, 2005.
Where is Clifford Breslow located?
Clifford Breslow practices at 55 Fogg Rd, South Weymouth, MA 02190. The listed phone number is (781) 340-8000.
What is Clifford Breslow's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Clifford Breslow enrolled in Medicare?
Yes. Clifford Breslow 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 Clifford Breslow's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Clifford Breslow reassigns Medicare benefits to 2 organizations: Coastal Medical Associates (Weymouth, MA) and South Suburban Gastroenterology, PC (South Weymouth, 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 Clifford Breslow's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Clifford Breslow affiliated with any hospitals?
According to CMS data, Clifford Breslow is affiliated with South Shore Hospital.
When was this NPI record last updated?
The NPPES record for Clifford Breslow was last updated on June 3, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Clifford Mark Breslow, M.D. · NPI 1639169758
Anesthesiology physician in South Weymouth, Massachusetts. Individual provider, active in the CMS NPPES registry since October 28, 2005.
## Identity
- **NPI:** 1639169758 (Entity type: Individual)
- **Enumerated:** October 28, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 77175 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 FOGG RD, South Weymouth, MA 02190-2432
- **Phone:** (781) 340-8000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Coastal Medical Associates (NPI 1932175684, Weymouth, MA); South Suburban Gastroenterology, PC (NPI 1114948478, South Weymouth, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1984
## Record status
- **NPPES last updated:** June 3, 2008
- **Other identifiers:** Medicaid 3105890 (MA); Other 077175 (MA); Other 275188 (MA); and 6 more
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Source: [NPI Profile](https://npiprofile.com/npi/1639169758) · Data from the CMS NPPES public registry.