DEREK GEORGE ARMSTRONG MD
NPI 1265991368
Pediatrics - Pediatric Gastroenterology in Durham, NC
NPI Status: Active since March 18, 2019
- Individual
- Male
- Pediatrics
- Pediatric Gastroenterology
About DEREK ARMSTRONG
This page provides the complete NPI Profile along with additional information for Derek Armstrong, a pediatrician established in Durham, North Carolina with a medical specialization in Pediatrics, focusing in pediatric gastroenterology . The healthcare provider is registered in the NPI registry with number 1265991368 assigned on March 2019. The practitioner's primary taxonomy code is 2080P0206X with license number 2025-01293 (NC). The provider is registered as an individual and his NPI record was last updated May 2025.
- NPI
- 1265991368
- Provider Name
- DEREK GEORGE ARMSTRONG MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 2301 ERWIN RD DURHAM, NC 27705
- Location Phone
- (919) 668-4000
- Mailing Address
- 1 BAYLOR PLZ # BCM320 HOUSTON, TX 77030
- Mailing Phone
- (832) 824-1170
- Mailing Fax
- Is Sole Proprietor?
- No
- Enumeration Date
- 03-18-2019
- Last Update Date
- 05-19-2025
- Code Navigator
A pediatrician like Derek Armstrong is a physician who has completed a pediatric residency and is board-certified or board-eligible in a pediatric specialty. Pediatric care providers are trained to care for newborns, infants, children and adolescents. A pediatrician could perform physical exams, manage vaccinations, monitor development milestones, diagnose illnesses, infections, injuries or other health problems, etc.
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Pediatrics Pediatric Gastroenterology
- Taxonomy Code
- 2080P0206X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 2025-01293
- License State
- NC
- Taxonomy Description
- 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.
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NPI Validation Check Digit Calculation
The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
| Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
| 1 | 2 | 6 | 5 | 9 | 9 | 1 | 3 | 6 | 8 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 2 | 12 | 5 | 18 | 9 | 2 | 3 | 12 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 2 + 1 + 2 + 5 + 1 + 8 + 9 + 2 + 3 + 1 + 2 + 24 = 62 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 70 - 62 = 8 | 8 | ||||||||
The NPI number 1265991368 is valid because the calculated check digit 8 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 20 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1083868053 | DR. JAY JEFFREY MEYER M.D. Individual | Ophthalmology | 2301 ERWIN RD DURHAM, NC 27705 (919) 684-8111 |
| 1306080478 | DR. GEORGE RAYBURN CHEELY JR. M.D. Individual | Student in an Organized Health Care Education/Training Program | 2301 ERWIN RD DUKE UNIVERSITY HOSPITAL, HOSPITAL MED BOX 100800, DUMC DURHAM, NC 27705 (215) 805-2142 |
| 1225353162 | DR. ERIC CHIANE CHU M.D. Individual | Internal Medicine | 2301 ERWIN RD DURHAM, NC 27705 (919) 684-8111 |
| 1750607271 | MR. DALE ORITSEWEYINMI OKORODUDU Individual | Student in an Organized Health Care Education/Training Program | 2301 ERWIN RD DUKE MEDICAL RESIDENTS OFFICE DURHAM, NC 27705 (919) 684-5369 |
| 1356652697 | MR. BRYAN HAMPTON PA-C Individual | Physician Assistant | 2301 ERWIN RD DUKE NORTH 3200 DURHAM, NC 27705 (919) 681-3241 |
| 1477866580 | SAHAR KOUBAR MD Individual | Internal Medicine | 2301 ERWIN RD RM 8254DN DURHAM, NC 27705 (919) 970-1637 |
| 1891085544 | STEPHANIE BUCK ANP Individual | Nurse Practitioner | 2301 ERWIN RD DURHAM, NC 27705 (919) 681-2425 |
| 1427348945 | KRISTI LYNN SEWARD PA-C Individual | Physician Assistant | 2301 ERWIN RD DURHAM, NC 27705 (919) 684-8111 |
| 1023309887 | KELLY B HAN M.D. Individual | Student in an Organized Health Care Education/Training Program | 2301 ERWIN RD DURHAM, NC 27705 (919) 684-8111 |
| 1669764353 | DUKE UNIVERSITY HOSPITAL Organization | General Acute Care Hospital | 2301 ERWIN RD DURHAM, NC 27705 (317) 502-6914 |
| 1366737009 | DR. EMMA CHRISTINE NEFF M.D. Individual | Student in an Organized Health Care Education/Training Program | 2301 ERWIN RD DURHAM, NC 27705 (919) 684-8111 |
| 1255629408 | DR. WASSIM SHATILA M.D. Individual | Internal Medicine | 2301 ERWIN RD DURHAM, NC 27705 (919) 699-4264 |
| 1750669461 | MR. CLIFTON EARL THOMPSON JR. PMHNP Individual | Nurse Practitioner (Psychiatric/Mental Health) | 2301 ERWIN RD DURHAM, NC 27705 (919) 681-4402 |
| 1447528021 | MARGARET ANNE MURPHY ACNP Individual | Nurse Practitioner (Acute Care) | 2301 ERWIN RD DURHAM, NC 27705 (919) 681-3241 |
| 1104182112 | DR. BRET STEVEN POWELL D.O., M.P.H. Individual | Student in an Organized Health Care Education/Training Program | 2301 ERWIN RD DURHAM, NC 27705 (919) 684-3491 |
| 1679830640 | DR. JOHN PATRICK YEATTS MD, MPH Individual | Student in an Organized Health Care Education/Training Program | 2301 ERWIN RD DURHAM, NC 27705 (919) 668-6577 |
| 1972860443 | VICTORIA MARIE PARENTE Individual | Student in an Organized Health Care Education/Training Program | 2301 ERWIN RD DURHAM, NC 27705 (919) 684-2356 |
| 1356697320 | JOHN DAVIES Individual | Respiratory Therapist, Registered | 2301 ERWIN RD DURHAM, NC 27705 (919) 681-4602 |
| 1568734895 | LYNDSEY NICOLE PRANGE CPNP Individual | Nurse Practitioner (Pediatrics) | 2301 ERWIN RD BOX 3936 DURHAM, NC 27705 (919) 668-0477 |
| 1417209891 | LINDSEY LEE BRUN PA-C Individual | Physician Assistant | 2301 ERWIN RD DURHAM, NC 27705 (616) 684-8111 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1265991368, enumerated in the NPI registry as an "individual" on March 18, 2019
The provider is located at 2301 Erwin Rd Durham, Nc 27705 and the phone number is (919) 668-4000
The provider's speciality is Pediatrics with taxonomy code 2080P0206X with a focus in Pediatric Gastroenterology
This NPI record was last updated on March 18, 2019. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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