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DEREK GEORGE ARMSTRONG MD
NPI 1265991368
Pediatrics - Pediatric Gastroenterology in Durham, NC

Active since March 18, 2019PECOS EnrolledAccepts Medicare Assignment
4709 CREEKSTONE DR, DURHAM, NC 27703(919) 668-4000 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Sep 11, 2025, May 19, 2025, Mar 18, 2019 (3 updates tracked since 2019).

About Derek George Armstrong Md NPPES

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

DEREK GEORGE ARMSTRONG MD (NPI 1265991368) is an individual pediatric gastroenterology provider in Durham, North Carolina, licensed in North Carolina (2025-01293) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1265991368
Entity TypeIndividualMale
Primary Taxonomy2080P0206X
Provider Legal NameDEREK GEORGE ARMSTRONGCredential: MD
Location Address4709 CREEKSTONE DRDurham, NC 27703-9822
Mailing Address2400 Pratt StDurham, NC 27705-3976 · (919) 684-5068 · Fax (919) 684-4836
Phone(919) 668-4000
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateMarch 18, 2019
Last NPPES UpdateSeptember 11, 20253 updates tracked since enumeration
NPPES CertifiedSeptember 11, 2025
✔ NPI 1265991368 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0206X
License✔ Licensed in NC · 2025-01293
Definition
A pediatrician who specializes in the diagnosis and treatment of diseases of the digestive systems of infants, children and adolescents. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using lighted scopes to see internal organs.
4709 CREEKSTONE DR, Durham, NC 27703
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of NC.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Derek George Armstrong 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.

PECOS PAC ID4284121203
PECOS Enrollment IDI20251014002513
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 27703 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$125.01 typical visit price
range $54.12 – $165.09
Typical copayment $31.25 (range $13.53 – $41.27)
Most-billed visit code 99204
Established Patient
$95.94 typical visit price
range $17.21 – $134.61
Typical copayment $23.98 (range $4.30 – $33.65)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

NEIL ROBERT EWING PA-C
Physician Assistant
4709 CREEKSTONE DR
DURHAM, NC 27703
Durham County (919) 660-2217
CHELSEA ESPINOZA OTR/L
Occupational Therapist
4709 CREEKSTONE DR
DURHAM, NC 27703
Durham County (919) 660-5066
DR. WILLIAM A JIRANEK M.D.
Orthopaedic Surgery
4709 CREEKSTONE DR, SUITE 300
DURHAM, NC 27703
Durham County (919) 684-6166
SANDEEP KUMAR PURI MD
Pediatrics (Pediatric Gastroenterology)
4709 CREEKSTONE DR
DURHAM, NC 27703
Durham County (919) 385-8880
KENDALL MURRAY ATC
Specialist/Technologist (Athletic Trainer)
4709 CREEKSTONE DR
DURHAM, NC 27703
Durham County (919) 660-5066
MARIANNE PAUL
Orthopaedic Surgery
4709 CREEKSTONE DR
DURHAM, NC 27703
Durham County (919) 684-8111
PRIVATE DIAGNOSTIC CLINIC, PLLC
Ophthalmology
4709 CREEKSTONE DR, SUITE 100
DURHAM, NC 27703
Durham County (919) 660-5060
MARTHA SIZEMORE AITKEN
Nurse Practitioner
4709 CREEKSTONE DR
DURHAM, NC 27703
Durham County (919) 660-5066

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 Derek Armstrong's NPI number?

The NPI number for Derek Armstrong is 1265991368. It was assigned to this individual provider in the NPPES registry on March 18, 2019.

Where is Derek Armstrong located?

Derek Armstrong practices at 4709 Creekstone Dr, Durham, NC 27703. The listed phone number is (919) 668-4000.

What is Derek Armstrong's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Gastroenterology, with taxonomy code 2080P0206X.

Is Derek Armstrong enrolled in Medicare?

Yes. Derek Armstrong 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.

What insurance does Derek Armstrong accept?

Health plans from Blue Cross and Blue Shield of NC list Derek Armstrong 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 Derek Armstrong was last updated on September 11, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.