WILLIAM M BELLAS DO
NPI 1487672184
Pediatrics - Neonatal-Perinatal Medicine in Fargo, ND

Active since July 18, 2006PECOS Enrolled
801 BROADWAY N, FARGO, ND 58102(701) 234-5997(701) 234-7194 Get Directions Write a Review

NPPES record last updated: January 30, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About William M Bellas Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM M BELLAS DO (NPI 1487672184) is an individual neonatal-perinatal medicine provider in Fargo, North Dakota, licensed in North Dakota (9687) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1487672184
Entity TypeIndividualMale
Primary Taxonomy2080N0001X
Provider Legal NameWILLIAM M BELLASCredential: DO
Location Address801 BROADWAY NFargo, ND 58102-3641
Mailing AddressPo Box 5074Sioux Falls, SD 57117-5074
Fax(701) 234-7194
Sole ProprietorNo
Enumeration DateJuly 18, 2006
Last NPPES UpdateJanuary 30, 2023
NPPES CertifiedJanuary 30, 2023
✔ NPI 1487672184 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
License✔ Licensed in ND · 9687
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
801 BROADWAY N, Fargo, ND 58102

Other Identifiers 1

Medicaid13072ND

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)

William M Bellas Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show William Bellas reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Occupational Medicine
3838 12TH AVE N
Fargo, ND 58102
  • Reassigned Medicare billing, North Dakota enrollment
  • 1,464 clinicians in this Medicare group
Nurse Anesthetist, Certified Registered
900 E BROADWAY AVE
Bismarck, ND 58501
  • Reassigned Medicare billing, North Dakota enrollment
  • 616 clinicians in this Medicare group
Multi-Specialty
565 S 7TH ST
Bismarck, ND 58504
  • Reassigned Medicare billing, North Dakota enrollment
  • 779 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.

Speech-Language Pathologist
801 BROADWAY N
FARGO, ND 58102
Nurse Anesthetist, Certified Registered
801 BROADWAY N
FARGO, ND 58102
Hospice Care, Community Based
801 BROADWAY N
FARGO, ND 58102
Family Medicine
801 BROADWAY N
FARGO, ND 58102
Internal Medicine (Infectious Disease)
801 BROADWAY N
FARGO, ND 58102
Internal Medicine (Gastroenterology)
801 BROADWAY N
FARGO, ND 58102
Pediatrics
801 BROADWAY N
FARGO, ND 58102
Internal Medicine
801 BROADWAY N
FARGO, ND 58102

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 William Bellas's NPI number?

The NPI number for William Bellas is 1487672184. It was assigned to this individual provider in the NPPES registry on July 18, 2006.

Where is William Bellas located?

William Bellas practices at 801 Broadway N, Fargo, ND 58102. The listed phone number is (701) 234-5997.

What is William Bellas's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is William Bellas enrolled in Medicare?

Yes. William Bellas is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for William Bellas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Bellas reassigns Medicare benefits to 3 organizations: Sanford Medical Center Fargo (Fargo, ND), St. Alexius Medical Center (Bismarck, ND) and Sanford Bismarck (Bismarck, ND). 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 William Bellas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Bellas accept?

Health plans from Blue Cross Blue Shield of North Dakota, Sanford Health Plan and Security Health Plan list William Bellas 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 William Bellas was last updated on January 30, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.