Dr. Aaron Willen, DO
- Medicare services, 2024
- 273
- Medicare patients, 2024
- 252
- Part D claims, 2024
- 323
- MIPS score, 2024
- 97
- Hospital affiliations
- 2
- Practice address
- 2215 Burdett Avenue, Troy, NY 12180
- Practice phone
- Call (518) 427-3402
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Willen's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Aaron Willen is an emergency medicine physician in Troy, New York
Dr. Willen practices at Samaritan Hospital in Troy, New York, part of Trinity Health.
Dr. Willen's NPI, 1316352776, was assigned on June 24, 2014. Dr. Willen graduated from Philadelphia College of Osteopathic Medicine in 2014. Dr. Willen holds New York license 302721.
- NPI
- 1316352776NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6002132214
- NPI enumeration date
- June 24, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (518) 427-3402
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Aaron Willen practices at Samaritan Hospital in Troy, New York
Dr. Willen's primary practice is Samaritan Hospital, at 2215 Burdett Avenue, Troy, NY 12180 in Rensselaer County. The practice phone is (518) 427-3402.
- Samaritan Hospital2215 Burdett Avenue, Troy, NY 12180 · Rensselaer CountyPhone(518) 427-3402
Source: Dmand AI Affiliation Data
Dr. Aaron Willen is affiliated with 2 sites of care and 5 medical groups
Dr. Willen's primary practice is Samaritan Hospital in Troy, New York, part of Trinity Health. Dr. Willen is also affiliated with Saratoga Hospital. The medical group on file is Emergency Medicine Physicians (EMP). Dmand AI also links Dr. Willen to 4 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Aaron Willen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Willen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Samaritan Hospital | Available with a free account |
| +1 more site and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Trinity Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Aaron Willen is one of 3,709 emergency medicine physicians in New York
Emergency medicine is Dr. Willen's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Willen is licensed in New York.
Specialties and state licenses
- Emergency medicine, New YorkPrimary
Emergency medicine physicians near Dr. Willen
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Aaron Willen billed Medicare for 273 services in 2024
CMS data shows 273 Medicare services from Dr. Willen across 3 procedure codes in 2024, for 252 Medicare patients. Medicare paid $28,410 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Willen's Medicare services by type, 2022 to 2024
- 2022
- 2024
- Office and hospital visits
- 2022: 2932024: 2737%
Dr. Willen compared with the New York median for emergency medicine physicians, 2024
- Dr. Willen
- New York median
- Medicare services
- 273vs 21925% above
- Medicare patients
- 252vs 21617% above
- Part D claims
- 177vs 296.1 times
Medians across 3,510 emergency medicine physicians in New York with Dmand AI profiles that report each measure.
Dr. Willen's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Willen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Willen and other emergency medicine physicians in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Aaron Willen treated 252 Medicare patients in 2024, average age 73
CMS counts 252 Medicare patients who saw Dr. Willen in 2024. The largest group is 65 to 74, with 75 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 45% are also on Medicaid. Their average risk score is 2.04, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Willen's median patient age at 69, with 51% women.
Dr. Willen's Medicare patients by age, 2024
Dr. Willen's Medicare patients by sex, 2024
- Women14156%
- Men11144%
Chronic conditions among Dr. Willen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Mood disorders44%
- Chronic kidney disease40%
- Depression40%
- Diabetes40%
- Ischemic heart disease40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Willen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Aaron Willen wrote 323 Medicare Part D claims in 2024
In 2024, Dr. Willen wrote 323 Medicare Part D claims for 234 patients. 96% of them were for generic drugs. CMS names the drug for 177 of them, across 7 drugs with 11 or more claims each, at $1,416 in total drug cost. In 2022, CMS named 56 claims across 3 drugs.
Dr. Willen's Part D claims by kind of drug, 2024
- Generic309 claims96%
- Brand-name14 claims4%
Dr. Willen's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Willen's Part D claims, 2024
- Opioids5%15 of 323 claims
- Antibiotics36%115 of 323 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 562024: 177216%
Drugs named by CMS: 7 in 2024, 3 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Aaron Willen scored 97 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. Willen for performance year 2024, reported as part of a group. Dr. Willen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Willen's MIPS scores, performance year 2024
- 97of 100Final score
- 40of 100Improvement Activities
- 77of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Aaron Willen graduated from Philadelphia College of Osteopathic Medicine
Dr. Willen graduated from Philadelphia College of Osteopathic Medicine in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Aaron Willen's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Aaron Willen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Aaron Willen's NPI number?
Dr. Aaron Willen's NPI number is 1316352776. It was assigned on June 24, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Aaron Willen?
Dr. Aaron Willen is an emergency medicine physician in Troy, New York. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Aaron Willen practice?
Dr. Willen practices at 2215 Burdett Avenue, Troy, NY 12180. Dr. Willen's primary practice is Samaritan Hospital in Troy, New York, part of Trinity Health. Dmand AI also links Dr. Willen to 4 medical groups.
What is Dr. Aaron Willen's office phone number?
The practice phone on file for Dr. Willen is (518) 427-3402.
What is Dr. Aaron Willen's medical license number?
Dr. Willen holds New York license 302721.
Which hospitals is Dr. Aaron Willen affiliated with?
Dr. Willen practices at Samaritan Hospital in Troy, New York. Dr. Willen is also affiliated with Saratoga Hospital.
What medical group is Dr. Aaron Willen part of?
Dr. Willen is linked to Emergency Medicine Physicians (EMP). Dmand AI links Dr. Willen to 4 more medical groups.
Does Dr. Aaron Willen accept Medicare?
Yes. CMS data shows Dr. Willen billed Medicare for 273 services in 2024, and Dr. Willen accepts Medicare assignment.
What is Dr. Aaron Willen's MIPS score?
Dr. Willen's MIPS final score for performance year 2024 is 97 out of 100, reported as part of a group.
How many Medicare patients does Dr. Aaron Willen see?
CMS counts 252 Medicare patients who saw Dr. Willen in 2024, with an average age of 73.
Show 4 more questionsShow fewer questions
What services does Dr. Aaron Willen bill to Medicare?
In 2024, Dr. Willen's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and emergency department visit (99283).
Where did Dr. Aaron Willen go to medical school?
Dr. Willen graduated from Philadelphia College of Osteopathic Medicine in 2014.
What drugs does Dr. Aaron Willen prescribe most?
In 2024 Medicare Part D data, Dr. Willen's most prescribed drugs by claims were Prednisone, Cefdinir and Doxycycline Hyclate.
How long has Dr. Aaron Willen been practicing?
Dr. Willen graduated from medical school in 2014, 12 years ago.
Selling to emergency medicine practices?
See emergency medicine physicians in New York by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card