MS. LOUISE AMBLER OSBORN CPNP
NPI 1013389386
Nurse Practitioner - Pediatrics in Boston, MA
About Ms. Louise Ambler Osborn Cpnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. LOUISE AMBLER OSBORN CPNP (NPI 1013389386) is an individual pediatrics provider in Boston, Massachusetts, licensed in Massachusetts (RN2284728) and active in the NPI registry since October 2015. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ms. Louise Ambler Osborn Cpnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Louise Ambler Osborn reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 125 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 2,579 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02215 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 02215
BOSTON, MA 02215
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 Louise Ambler Osborn's NPI number?
The NPI number for Louise Ambler Osborn is 1013389386. It was assigned to this individual provider in the NPPES registry on October 27, 2015.
Where is Louise Ambler Osborn located?
Louise Ambler Osborn practices at 1 Joslin Pl, Boston, MA 02215. The listed phone number is (617) 732-2603.
What is Louise Ambler Osborn's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.
Is Louise Ambler Osborn enrolled in Medicare?
Yes. Louise Ambler Osborn is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Louise Ambler Osborn's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Louise Ambler Osborn reassigns Medicare benefits to 2 organizations: Joslin Clinic Inc (Boston, MA) and Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, 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 Louise Ambler Osborn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Louise Ambler Osborn was last updated on October 27, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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. Louise Ambler Osborn, CPNP · NPI 1013389386
Pediatrics physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since October 27, 2015.
## Identity
- **NPI:** 1013389386 (Entity type: Individual)
- **Enumerated:** October 27, 2015
- **Primary specialty:** Nurse Practitioner - Pediatrics · taxonomy 363LP0200X
- **State license:** RN2284728 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 JOSLIN PL, Boston, MA 02215-5306
- **Phone:** (617) 732-2603
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Joslin Clinic Inc (NPI 1528003621, Boston, MA); Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (NPI 1194765438, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 27, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1013389386) · Data from the CMS NPPES public registry.