James Aaron Dillingham, PA
Medical Physician Assistant · Highlands Ranch, CO
James Aaron Dillingham, PA is a medical physician assistant with a practice address in Highlands Ranch, Colorado, and NPI 1518297480, issued on Dec 28, 2009. Check the license (Colorado PA.0002902, as entered in NPPES) with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- James Aaron Dillingham
- Credential
- PA
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- PA.0002902 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1500 Park Central Dr Ste 301, Highlands Ranch, CO 80129
- Phone
- (720) 848-0000
- Enumerated
- Dec 28, 2009
- Record last updated
- Dec 7, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20100116000180); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 1,308 in Colorado → Look up another NPI →
Also registered at 1500 Park Central Dr Ste 301
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Keri Clark, PA-CSurgical Physician Assistant1043885890
Verify James Aaron Dillingham in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Colorado board licenses this profession
Search for license PA.0002902Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% more Medicare Part D claims than the average medical physician assistant in 2024
2,184 Medicare Part D claims for 346 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Metoprolol Succinate241 claims
- Atorvastatin Calcium233 claims
- Eliquis187 claims
- Losartan Potassium153 claims
- Rosuvastatin Calcium138 claims
- Furosemide135 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $24.11
1 payment: food and beverage; the largest payer was Abbott Laboratories. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- University Physicians IncorporatedAurora, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Aaron Dillingham among 1,308 medical physician assistant records in Colorado
James Aaron Dillingham, PA is one of 1,308 medical physician assistant records with a practice address in Colorado. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 37% of them.
- NPI issued2009 · 37% of these records are older, 58% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2009 · median 2014 among the 727 with a school on file
- Record last updated2020 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in Colorado
There are 1,308 medical physician assistant records in Colorado.
All 1,308 in Colorado → Every provider in Highlands Ranch → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Joseph Cari, PA-CHighlands Ranch, CO 801291265819429
- Constance Cerjan, PA-CHighlands Ranch, CO 801291881655314
- Nicolette HolcombHighlands Ranch, CO 801291568152361
- Betty Mitchell, PAHighlands Ranch, CO 801291821125881
- Jennifer Nafziger, PAHighlands Ranch, CO 801291093111882
- Rebecca Powell, PA-CHighlands Ranch, CO 801291467850446
- Chelsea Schweid, PA-CHighlands Ranch, CO 801291669598470
- Megan Thoms, P.A.Highlands Ranch, CO 801291053678854
Common questions
What is James Aaron Dillingham, PA's NPI number?
James Aaron Dillingham, PA's National Provider Identifier (NPI) is 1518297480, issued on Dec 28, 2009. An NPI identifies a provider in billing; it is not a license.
Where is James Aaron Dillingham, PA located?
The NPPES record lists a practice address at 1500 Park Central Dr Ste 301, Highlands Ranch, CO, 80129. Phone: (720) 848-0000. Providers update this record themselves, so call before visiting.
How can I verify James Aaron Dillingham, PA's license?
NPPES lists Colorado license number PA.0002902, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.
How much does James Aaron Dillingham, PA prescribe under Medicare Part D?
In 2024, James Aaron Dillingham, PA had 2,184 Medicare Part D claims for 346 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions 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.