DR. DONIELLE F SLIWA MD, MPH
NPI 1376809277
Internal Medicine - Medical Oncology in Dover, NH
About Dr. Donielle F Sliwa Md, Mph NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DONIELLE F SLIWA MD, MPH (NPI 1376809277) is an individual medical oncology provider in Dover, New Hampshire, licensed in New Hampshire (33217) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS, is affiliated with Anna Jaques Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 2
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
Dr. Donielle F Sliwa Md, Mph 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
7Medicare enrollment records show Donielle Sliwa reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Dover, NH 03820
- Reassigned Medicare billing, New Hampshire enrollment
- 559 clinicians in this Medicare group
Exeter, NH 03833
- Reassigned Medicare billing, New Hampshire enrollment
- 395 clinicians in this Medicare group
Newburyport, MA 01950
- Reassigned Medicare billing, Massachusetts enrollment
- 346 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts and New Hampshire enrollments
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Plattsburgh, NY 12901
- Reassigned Medicare billing, New York enrollment
- 675 clinicians in this Medicare group
Malone, NY 12953
- Reassigned Medicare billing, New York enrollment
- 326 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 4
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.
Anna Jaques Hospital
Acute Care Hospitals · Newburyport, MABrigham And Women's Hospital
Acute Care Hospitals · Boston, MAWentworth-Douglass Hospital
Acute Care Hospitals · Dover, NHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 03820 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.
DOVER, NH 03820
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 Donielle Sliwa's NPI number?
The NPI number for Donielle Sliwa is 1376809277. It was assigned to this individual provider in the NPPES registry on April 4, 2012.
Where is Donielle Sliwa located?
Donielle Sliwa practices at 789 Central Ave, Dover, NH 03820. The listed phone number is (603) 742-8787.
What is Donielle Sliwa's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.
Is Donielle Sliwa enrolled in Medicare?
Yes. Donielle Sliwa 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 Donielle Sliwa's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Donielle Sliwa reassigns Medicare benefits to 7 organizations: Wentworth Douglass Physician Corporation (Dover, NH), Core Physicians, LLC (Exeter, NH), Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Newburyport, MA), Massachusetts General Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA) and 2 more organizations, 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 Donielle Sliwa's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Donielle Sliwa accept?
Health plans from Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care, Taro Health and WellSense Health Plan list Donielle Sliwa 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 Donielle Sliwa affiliated with any hospitals?
According to CMS data, Donielle Sliwa is affiliated with Anna Jaques Hospital, Brigham And Women's Hospital and Wentworth-Douglass Hospital.
When was this NPI record last updated?
The NPPES record for Donielle Sliwa was last updated on August 14, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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. Donielle F Sliwa, MD, MPH · NPI 1376809277
Medical Oncology physician in Dover, New Hampshire. Individual provider, active in the CMS NPPES registry since April 4, 2012.
## Identity
- **NPI:** 1376809277 (Entity type: Individual)
- **Enumerated:** April 4, 2012
- **Primary specialty:** Internal Medicine - Medical Oncology · taxonomy 207RX0202X
- **State license:** 33217 (New Hampshire)
- **Sole proprietor:** No
## Practice location
- **Address:** 789 CENTRAL AVE, Dover, NH 03820-2526
- **Phone:** (603) 742-8787
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Wentworth Douglass Physician Corporation (NPI 1447352430, Dover, NH); Core Physicians, LLC (NPI 1336330588, Exeter, NH); Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (NPI 1235537093, Newburyport, MA); Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** August 14, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1376809277) · Data from the CMS NPPES public registry.