MIRIAM A. O'LEARY M.D.
NPI 1871752444
Otolaryngology in Boston, MA
About Miriam A. O'leary M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MIRIAM A. O'LEARY M.D. (NPI 1871752444) is an individual otolaryngology provider in Boston, Massachusetts, licensed in Massachusetts (218974) and active in the NPI registry since June 2008. She is enrolled in Medicare PECOS, is affiliated with Lowell General Hospital, and is a graduate of University Of Connecticut School Of Medicine (2003).
NPPES Registry Identity
Specialties & Licenses
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
Miriam A. O'leary 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 Reassignment
Medicare enrollment records show Miriam O'leary reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Boston, MA 02111
- Reassigned Medicare billing, Massachusetts enrollment
- 14 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 3
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lowell General Hospital
Acute Care Hospitals · Lowell, MATufts Medical Center
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02111 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 02111
BOSTON, MA 02111
BOSTON, MA 02111
BOSTON, MA 02111
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 Miriam O'leary's NPI number?
The NPI number for Miriam O'leary is 1871752444. It was assigned to this individual provider in the NPPES registry on June 9, 2008.
Where is Miriam O'leary located?
Miriam O'leary practices at 800 Washington St #850, Boston, MA 02111. The listed phone number is (617) 636-3030.
What is Miriam O'leary's specialty?
The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.
Is Miriam O'leary enrolled in Medicare?
Yes. Miriam O'leary 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 organization bills Medicare for Miriam O'leary's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Miriam O'leary reassigns Medicare benefits to Pratt Otolaryngology- Head & Neck Surgery Associates Inc (Boston, MA). The 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 Miriam O'leary's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Miriam O'leary accept?
Health plans from Anthem Blue Cross and Blue Shield list Miriam O'leary 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 Miriam O'leary affiliated with any hospitals?
According to CMS data, Miriam O'leary is affiliated with Lowell General Hospital and Tufts Medical Center.
When was this NPI record last updated?
The NPPES record for Miriam O'leary was last updated on September 18, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Miriam A. O'leary, M.D. · NPI 1871752444
Otolaryngology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since June 9, 2008.
## Identity
- **NPI:** 1871752444 (Entity type: Individual)
- **Enumerated:** June 9, 2008
- **Primary specialty:** Otolaryngology · taxonomy 207Y00000X
- **State license:** 218974 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 800 WASHINGTON ST, #850, Boston, MA 02111-1552
- **Phone:** (617) 636-3030 · **Fax:** (617) 636-1479
## 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:** Pratt Otolaryngology- Head & Neck Surgery Associates Inc (NPI 1669411229, Boston, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Connecticut School Of Medicine, class of 2003
## Record status
- **NPPES last updated:** September 18, 2009
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Source: [NPI Profile](https://npiprofile.com/npi/1871752444) · Data from the CMS NPPES public registry.