NATALIE ANNE JANSEN MD
NPI 1356920318
Emergency Medicine in Boston, MA
About Natalie Anne Jansen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NATALIE ANNE JANSEN MD (NPI 1356920318) is an individual emergency medicine provider in Boston, Massachusetts, licensed in Massachusetts (1018365) and active in the NPI registry since April 2021. She is enrolled in Medicare PECOS, is affiliated with Umass Memorial Health - Harrington Hospital, and maintains a secondary practice location in Boston.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Natalie Anne Jansen 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
6Medicare enrollment records show Natalie Jansen reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 253 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1316987993 (Massachusetts)
- 2,579 clinicians in this Medicare group
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 clinicians in this Medicare group
Milton, MA 02186
- Reassigned Medicare billing, Massachusetts enrollment
- 177 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 5
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Umass Memorial Health - Harrington Hospital
Acute Care Hospitals · Southbridge, MABeth Israel Deaconess Medical Center
Acute Care Hospitals · Boston, MABeth Israel Deaconess Hospital - Milton
Acute Care Hospitals · Milton, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02114 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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Natalie Jansen's NPI number?
The NPI number for Natalie Jansen is 1356920318. It was assigned to this individual provider in the NPPES registry on April 6, 2021.
Where is Natalie Jansen located?
Natalie Jansen practices at 75 Fruit St, Boston, MA 02114. The listed phone number is (617) 724-4100.
What is Natalie Jansen's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Natalie Jansen enrolled in Medicare?
Yes. Natalie Jansen 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 Natalie Jansen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Natalie Jansen reassigns Medicare benefits to 6 organizations: The General Hospital Corporation (Boston, MA), Massachusetts General Physicians Organization Inc (Boston, MA), Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Boston, MA), Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA), Brigham & Womens Physicians Organization Inc (Boston, MA) and 1 more organization, listed in the Medicare section above. 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 Natalie Jansen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Natalie Jansen accept?
Health plans from Taro Health list Natalie Jansen 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 Natalie Jansen affiliated with any hospitals?
According to CMS data, Natalie Jansen is affiliated with Umass Memorial Health - Harrington Hospital, Beth Israel Deaconess Medical Center and Beth Israel Deaconess Hospital - Milton.
When was this NPI record last updated?
The NPPES record for Natalie Jansen was last updated on August 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 54 days 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.
# Natalie Anne Jansen, MD · NPI 1356920318
Emergency Medicine physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since April 6, 2021.
## Identity
- **NPI:** 1356920318 (Entity type: Individual)
- **Enumerated:** April 6, 2021
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 1018365 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 75 FRUIT ST, Boston, MA 02114-2621
- **Phone:** (617) 724-4100
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): The General Hospital Corporation (NPI 1023049236, Boston, MA); Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (NPI 1952358533, Boston, MA); Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (NPI 1194765438, Boston, MA); Brigham & Womens Physicians Organization Inc (NPI 1033535497, Boston, MA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Illinois College Of Med, class of 2021
## Record status
- **NPPES last updated:** August 30, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1356920318) · Data from the CMS NPPES public registry.