MS. TIERNEY M MORRISON M.D.
NPI 1851787626
Pediatrics - Neonatal-Perinatal Medicine in Boston, MA
About Ms. Tierney M Morrison M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. TIERNEY M MORRISON M.D. (NPI 1851787626) is an individual neonatal-perinatal medicine provider in Boston, Massachusetts, licensed in Massachusetts (278351) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS.
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 (PECOS)
Ms. Tierney M Morrison M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Tierney Morrison reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 1,358 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.
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 02115
BOSTON, MA 02115
BOSTON, MA 02115
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 Tierney Morrison's NPI number?
The NPI number for Tierney Morrison is 1851787626. It was assigned to this individual provider in the NPPES registry on April 8, 2015.
Where is Tierney Morrison located?
Tierney Morrison practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-6000.
What is Tierney Morrison's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.
Is Tierney Morrison enrolled in Medicare?
Yes. Tierney Morrison is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Tierney Morrison's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tierney Morrison reassigns Medicare benefits to Children's Hospital Pediatric 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 Tierney Morrison's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tierney Morrison accept?
Health plans from Taro Health list Tierney Morrison 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.
When was this NPI record last updated?
The NPPES record for Tierney Morrison was last updated on May 16, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Ms. Tierney M Morrison, M.D. · NPI 1851787626
Neonatal-Perinatal Medicine physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since April 8, 2015.
## Identity
- **NPI:** 1851787626 (Entity type: Individual)
- **Enumerated:** April 8, 2015
- **Primary specialty:** Pediatrics - Neonatal-Perinatal Medicine · taxonomy 2080N0001X
- **State license:** 278351 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 LONGWOOD AVE, Boston, MA 02115-5737
- **Phone:** (617) 355-6000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Children's Hospital Pediatric Associates, Inc (NPI 1457306664, Boston, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 16, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1851787626) · Data from the CMS NPPES public registry.