DR. PATRICIA HADDAD MD
NPI 1023577103
Anesthesiology in Boston, MA
About Dr. Patricia Haddad Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PATRICIA HADDAD MD (NPI 1023577103) is an individual anesthesiology provider in Boston, Massachusetts, licensed in Massachusetts (1020257) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS, is affiliated with Boston Medical Center, and maintains a secondary practice location in New Haven.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 2
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. Patricia Haddad 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 Patricia Haddad reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 102 clinicians in this Medicare group
Winchester, MA 01890
- Reassigned Medicare billing, Massachusetts enrollment
- 88 clinicians in this Medicare group
Winchester, MA 01890
- Reassigned Medicare billing, Massachusetts enrollment
- 105 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Boston Medical Center
Acute Care Hospitals · Boston, MAWinchester Hospital
Acute Care Hospitals · Winchester, MAOther 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 02118
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
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 Patricia Haddad's NPI number?
The NPI number for Patricia Haddad is 1023577103. It was assigned to this individual provider in the NPPES registry on March 18, 2019.
Where is Patricia Haddad located?
Patricia Haddad practices at 1 Boston Medical Ctr Pl, Boston, MA 02118. The listed phone number is (617) 638-6950.
What is Patricia Haddad's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Patricia Haddad enrolled in Medicare?
Yes. Patricia Haddad 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 Patricia Haddad's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Patricia Haddad reassigns Medicare benefits to 3 organizations: Boston University Medical Center Anesthesiologists, Inc. (Boston, MA), Winchester Anesthesia Associates 2 Inc (Winchester, MA) and Winchester Anesthesia Associates, Inc (Winchester, 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 Patricia Haddad's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Patricia Haddad affiliated with any hospitals?
According to CMS data, Patricia Haddad is affiliated with Boston Medical Center and Winchester Hospital.
When was this NPI record last updated?
The NPPES record for Patricia Haddad was last updated on March 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Dr. Patricia Haddad, MD · NPI 1023577103
Anesthesiology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 18, 2019.
## Identity
- **NPI:** 1023577103 (Entity type: Individual)
- **Enumerated:** March 18, 2019
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 1020257 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 BOSTON MEDICAL CTR PL, Boston, MA 02118-2908
- **Phone:** (617) 638-6950 · **Fax:** (617) 638-6966
## 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): Boston University Medical Center Anesthesiologists, Inc. (NPI 1952874737, Boston, MA); Winchester Anesthesia Associates 2 Inc (NPI 1427599588, Winchester, MA); Winchester Anesthesia Associates, Inc (NPI 1972626117, Winchester, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** State University Of New York At Buffalo School Of Medicine, class of 2019
## Record status
- **NPPES last updated:** March 12, 2026
- **Other identifiers:** Medicaid 3149979 (NH); Medicaid 110156038A (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1023577103) · Data from the CMS NPPES public registry.