DR. ELIZABETH B HARSTAD M.D.
NPI 1124297445
Pediatrics - Developmental - Behavioral Pediatrics in Boston, MA
About Dr. Elizabeth B Harstad M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ELIZABETH B HARSTAD M.D. (NPI 1124297445) is an individual developmental - behavioral pediatrics provider in Boston, Massachusetts, licensed in Massachusetts (234866) and active in the NPI registry since February 2008. 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)
Dr. Elizabeth B Harstad M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Elizabeth Harstad 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 Elizabeth Harstad's NPI number?
The NPI number for Elizabeth Harstad is 1124297445. It was assigned to this individual provider in the NPPES registry on February 21, 2008.
Where is Elizabeth Harstad located?
Elizabeth Harstad practices at 300 Longwood Ave Fegan 10, Boston, MA 02115. The listed phone number is (617) 355-7025.
What is Elizabeth Harstad's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Developmental - Behavioral Pediatrics, with taxonomy code 2080P0006X.
Is Elizabeth Harstad enrolled in Medicare?
Yes. Elizabeth Harstad is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Elizabeth Harstad's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Elizabeth Harstad 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 Elizabeth Harstad's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Elizabeth Harstad accept?
Health plans from Taro Health list Elizabeth Harstad 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 Elizabeth Harstad was last updated on April 19, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Dr. Elizabeth B Harstad, M.D. · NPI 1124297445
Developmental - Behavioral Pediatrics physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since February 21, 2008.
## Identity
- **NPI:** 1124297445 (Entity type: Individual)
- **Enumerated:** February 21, 2008
- **Primary specialty:** Pediatrics - Developmental - Behavioral Pediatrics · taxonomy 2080P0006X
- **State license:** 234866 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 LONGWOOD AVE, FEGAN 10, Boston, MA 02115-5724
- **Phone:** (617) 355-7025
## 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:** April 19, 2011
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Source: [NPI Profile](https://npiprofile.com/npi/1124297445) · Data from the CMS NPPES public registry.