Darwin Martin Koller, M.D.
Pediatric Emergency Medicine (Pediatrics) Physician · Springdale, AR
Darwin Martin Koller, M.D. is a pediatric emergency medicine (pediatrics) physician with a practice address in Springdale, Arkansas, and NPI 1568495638, issued on Jul 9, 2006. Check the license (Arkansas E-18596, as entered in NPPES) on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.
- Name
- Darwin Martin Koller
- Credential
- M.D.
- Primary taxonomy
- Pediatric Emergency Medicine (Pediatrics) Physician 2080P0204X
- License numbers
- E-18596 AR
39891 TN
MD39891 TN
Self-reported in NPPES; status is on the state search - Practice location
- 2601 Gene George Blvd, Springdale, AR 72762
- Phone
- (479) 725-6800
- Enumerated
- Jul 9, 2006
- Record last updated
- May 6, 2026
- Fax
- (479) 725-6582
- Medicaid IDs
- 3333990 TN
985815633A GA
009910791 AL
009932922 AL - Medicare enrollment
- Enrolled (PECOS I20190529002285); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pediatric emergency medicine (pediatrics) physician records → All 30 in Arkansas → Look up another NPI →
Also registered at 2601 Gene George Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Alberty, MDPediatric Gastroenterology Physician1538195128
- Laurie Allen, PA-CPhysician Assistant1962826503
- Janine Amos, D.O.Otolaryngology/Facial Plastic Surgery Physician1578902169
- Haley ArellanoAthletic Trainer1285202788
- Julie Arnette, APRNPediatric Nurse Practitioner1851187983
- Holli Bagwell, D.O.Pediatric Emergency Medicine (Pediatrics) Physician1639346240
Verify Darwin Martin Koller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArkansas State Medical Board
Search for license E-18596Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Inphynet Contracting Services LLCTampa, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Darwin Martin Koller among 30 pediatric emergency medicine (pediatrics) physician records in Arkansas
Darwin Martin Koller, M.D. is one of 30 pediatric emergency medicine (pediatrics) physician records with a practice address in Arkansas. 10% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 0% of them.
- NPI issued2006 · 0% of these records are older, 60% newer
- In a Medicare fileYes · 10% of these records are
- In the CMS Doctors and Clinicians fileYes · 10% of these records are
- Record last updated2026 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0204X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Emergency Medicine (Pediatrics) Physician providers in Arkansas
There are 30 pediatric emergency medicine (pediatrics) physician records in Arkansas.
All 30 in Arkansas → Every provider in Springdale → Pediatric Emergency Medicine (Pediatrics) Physician nationwide →
The 8 pediatric emergency medicine (pediatrics) physician records with the nearest ZIP codes
- Holli Bagwell, D.O.Springdale, AR 727621639346240
- Blake Gruenberg, MDSpringdale, AR 727621619404563
- Amanda Hollingsworth, MDSpringdale, AR 727621881809184
- Lydia Washer, M.D.Springdale, AR 727621568753903
- Sarah Weston, M.D.Springdale, AR 727621114131083
- Robert Williams, M.D.Springdale, AR 727621740369263
- Maxwell Taylor, M.D.Little Rock, AR 722051477996619
- Zina Alhaddad, M.D.Little Rock, AR 722021558817205
Common questions
What is Darwin Martin Koller, M.D.'s NPI number?
Darwin Martin Koller, M.D.'s National Provider Identifier (NPI) is 1568495638, issued on Jul 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Darwin Martin Koller, M.D. located?
The NPPES record lists a practice address at 2601 Gene George Blvd, Springdale, AR, 72762. Phone: (479) 725-6800. Providers update this record themselves, so call before visiting.
How can I verify Darwin Martin Koller, M.D.'s license?
NPPES lists Arkansas license number E-18596, as entered by the provider. Search the Arkansas State Medical Board at https://armedicalboard.adh.arkansas.gov/public/verify/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.