Nathan W. Koller, P.A.
Physician Assistant · Bel Air, MD
Nathan W. Koller, P.A. is a physician assistant with a practice address in Bel Air, Maryland, and NPI 1497060727, issued on Aug 11, 2010. Check the license (Maryland C0004217, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nathan W. Koller
- Credential
- P.A.
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- C0004217 MD
MA064644 PA
Self-reported in NPPES; status is on the state search - Practice location
- 500 Upper Chesapeake Dr, Bel Air, MD 21014
- Phone
- (443) 643-1500
- Enumerated
- Aug 11, 2010
- Record last updated
- Mar 13, 2024
- Fax
- (443) 643-1505
- Medicare enrollment
- Enrolled (PECOS I20230911003806); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,224 in Maryland → Look up another NPI →
Also registered at 500 Upper Chesapeake Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michelle Abramowski, CRNPAdult Health Nurse Practitioner1598954463
- Anna Adamson, MDHospice and Palliative Medicine (Internal Medicine) Physician1316280720
- Titilayo Adetu, MDFamily Medicine Physician1053479204
- Christina AgronRegistered Nurse1336985225
- Ekunola Alade, MDInternal Medicine Physician1750556288
- Olusumbo AladeMedical Physician Assistant1417484965
Verify Nathan W. Koller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license C0004217Check 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
- Pinnacle Health Hospitalist Services LLCHanover, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathan W. Koller among 3,224 physician assistant records in Maryland
Nathan W. Koller, P.A. is one of 3,224 physician assistant records with a practice address in Maryland. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 30% of them.
- NPI issued2010 · 30% of these records are older, 66% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2009 · median 2017 among the 1,974 with a school on file
- Record last updated2024 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
57 physician assistant records list a practice address in Bel Air
They are 57 of the 1,945 NPPES records with a practice address in Bel Air, and 3,224 physician assistant records in Maryland.
All 3,224 in Maryland → Every provider in Bel Air → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Kimberly Bagwell, PA-CBel Air, MD 210141568613644
- Dorsey Butterbaugh, PACBel Air, MD 210141821015348
- Bryan Fagan, PA-CBel Air, MD 210141306979786
- Laura Gaskill, PABel Air, MD 210141033262621
- Donna Kern, PACBel Air, MD 210141255337747
- Matthew Marriott, P.A.Bel Air, MD 210141538104393
- Bryan Mitchell, PA-CBel Air, MD 210141063638914
- Leslie Parrish, PABel Air, MD 210141568473262
Common questions
What is Nathan W. Koller, P.A.'s NPI number?
Nathan W. Koller, P.A.'s National Provider Identifier (NPI) is 1497060727, issued on Aug 11, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Nathan W. Koller, P.A. located?
The NPPES record lists a practice address at 500 Upper Chesapeake Dr, Bel Air, MD, 21014. Phone: (443) 643-1500. Providers update this record themselves, so call before visiting.
How can I verify Nathan W. Koller, P.A.'s license?
NPPES lists Maryland license number C0004217, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
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.