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RUSSELL TAYLOR SUNDBY MD
NPI 1275952020
Pediatrics - Pediatric Hematology-Oncology in Bethesda, MD

Active since April 09, 2014PECOS Enrolled
10 CENTER DR BLDG 10, BETHESDA, MD 20892(301) 219-3758(301) 451-7010 Get Directions Write a Review

NPPES record last updated: February 15, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 15, 2025, Nov 14, 2024, Jul 5, 2018 and 1 more (4 updates tracked since 2018).

About Russell Taylor Sundby Md NPPES

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

RUSSELL TAYLOR SUNDBY MD (NPI 1275952020) is an individual pediatric hematology-oncology provider in Bethesda, Maryland, licensed in Maryland (D0085726) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1275952020
Entity TypeIndividualMale
Primary Taxonomy2080P0207X
Provider Legal NameRUSSELL TAYLOR SUNDBYCredential: MD
Location Address10 CENTER DR BLDG 10Bethesda, MD 20892-0004
Mailing Address1800 Orleans St Rm 11379Baltimore, MD 21287-0010 · (410) 955-8751 · Fax (410) 955-0028
Phone(301) 219-3758
Fax(301) 451-7010
Sole ProprietorYes
Enumeration DateApril 9, 2014
Last NPPES UpdateFebruary 15, 20254 updates tracked since enumeration
NPPES CertifiedFebruary 15, 2025
✔ NPI 1275952020 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Hematology-OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0207X
License✔ Licensed in MD · D0085726
Definition
A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.
Also ListedPediatricsTaxonomy 208000000X · License D0085726 (MD)
10 CENTER DR BLDG 10, Bethesda, MD 20892
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Other Names 1

Other Name (5)Taylor Sundby Md

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Russell Taylor Sundby Md 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 Reassignment

Medicare enrollment records show Russell Sundby reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

The Nemours Foundation
99 mi
Multi-Specialty
1600 ROCKLAND RD
Wilmington, DE 19803
  • Reassigned Medicare billing, Delaware enrollment
  • 526 clinicians in this Medicare group
NPI 1366594699 (302) 651-4000

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.

MR. MICHAEL S STAGLIANO ARNP
Nurse Practitioner (Family)
10 CENTER DR BLDG 10
BETHESDA, MD 20892
Montgomery County (240) 507-0883
DR. EVAN ALBERT GHIN CHIANG DER MD, PHD
Student in an Organized Health Care Education/Training Program
10 CENTER DR BLDG 10
BETHESDA, MD 20892
Montgomery County (510) 390-4760
DR. SANAZ SAKIANI
Internal Medicine (Endocrinology, Diabetes & Metabolism)
10 CENTER DR BLDG 10
BETHESDA, MD 20892
Montgomery County (301) 896-2401
DR. RAMIN AKHI DDS
Student in an Organized Health Care Education/Training Program
10 CENTER DR BLDG 10
BETHESDA, MD 20892
Montgomery County (240) 234-2525
DR. MAX WILLIAM BERRILL MBBS MSC BSC
Student in an Organized Health Care Education/Training Program
10 CENTER DR BLDG 10
BETHESDA, MD 20892
Montgomery County (301) 496-9320
LIQIANG XI
Pathology (Clinical Laboratory Director, Non-physician)
10 CENTER DR BLDG 10
BETHESDA, MD 20892
Montgomery County (301) 480-8933
ELIZABETH RUTH FRANCIS
Internal Medicine
10 CENTER DR BLDG 10
BETHESDA, MD 20892
Montgomery County (240) 858-7140
MARIA DEL CARMEN RODRIGUEZ PENA
Pathology (Anatomic Pathology)
10 CENTER DR BLDG 10
BETHESDA, MD 20892
Montgomery County (240) 858-7416

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 Russell Sundby's NPI number?

The NPI number for Russell Sundby is 1275952020. It was assigned to this individual provider in the NPPES registry on April 9, 2014. The provider is also known as Taylor Sundby MD.

Where is Russell Sundby located?

Russell Sundby practices at 10 Center Dr Bldg 10, Bethesda, MD 20892. The listed phone number is (301) 219-3758.

What is Russell Sundby's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.

Is Russell Sundby enrolled in Medicare?

Yes. Russell Sundby is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Russell Sundby's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Russell Sundby reassigns Medicare benefits to The Nemours Foundation (Wilmington, DE). 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 Russell Sundby's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Russell Sundby accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and AmeriHealth Caritas Next and 1 other insurer list Russell Sundby 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 Russell Sundby was last updated on February 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 months 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.