Daniel Louis Aaron, M.D.
Orthopaedic Surgery Physician · Worcester, MA
Daniel Louis Aaron, M.D. is an orthopaedic surgery physician with a practice address in Worcester, Massachusetts, and NPI 1518184605, issued on Apr 19, 2007. Check the license (Massachusetts 253594, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Daniel Louis Aaron
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License numbers
- 253594 MA
261022 NY
MD13195 RI
Self-reported in NPPES; status is on the state search - Practice location
- 281 Lincoln St, Worcester, MA 01605
- Phone
- (508) 334-6606
- Enumerated
- Apr 19, 2007
- Record last updated
- Oct 27, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (508) 334-5156
- Medicaid ID
- 110087362A MA
- Medicare enrollment
- Enrolled (PECOS I20121210000081); accepts Medicare assignment
- Medical or professional school
- State University Of New York Downstate Medical Center, 2005
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 692 in Massachusetts → Look up another NPI →
Also registered at 281 Lincoln St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Rasha Amiri, M.D.Internal Medicine Physician1750589669
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- Bathsheeba Andrabi, M.D.Internal Medicine Physician1528117330
Verify Daniel Louis Aaron in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 253594Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
253 Medicare Part D claims for 98 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 89 claims were for opioids.
Most prescribed
- Amoxicillin87 claims
- Oxycodone Hcl64 claims
- Celecoxib23 claims
- Hydromorphone Hcl11 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: $5,047.22
5 payments; by number, the most common kind was food and beverage; the largest payer was Zimmer Biomet Holdings, Inc. The 15,003 providers of this specialty with any payment received $23,022.89 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
- Umass Memorial Medical Group IncWorcester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Daniel Louis Aaron among 692 orthopaedic surgery physician records in Massachusetts
Daniel Louis Aaron, M.D. is one of 692 orthopaedic surgery physician records with a practice address in Massachusetts. 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 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 42% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2005 · median 2004 among the 441 with a school on file
- Record last updated2020 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in Massachusetts
There are 692 orthopaedic surgery physician records in Massachusetts.
All 692 in Massachusetts → Every provider in Worcester → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- David Ayers, M.D.Worcester, MA 016051235129594
- Norman Beisaw, M.D.Worcester, MA 016051720062961
- Thomas Breen, M.D.Worcester, MA 016051205810017
- Patrick Connolly, M.D.Worcester, MA 016051730170358
- Peyton Hays, M.D.Worcester, MA 016051912059429
- Hwa Hsieh, M.D.Worcester, MA 016051518941640
- Marshall Katzen, MDWorcester, MA 016051326140682
- George Lewinnek, MDWorcester, MA 016051750480349
Common questions
What is Daniel Louis Aaron, M.D.'s NPI number?
Daniel Louis Aaron, M.D.'s National Provider Identifier (NPI) is 1518184605, issued on Apr 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Daniel Louis Aaron, M.D. located?
The NPPES record lists a practice address at 281 Lincoln St, Worcester, MA, 01605. Phone: (508) 334-6606. Providers update this record themselves, so call before visiting.
How can I verify Daniel Louis Aaron, M.D.'s license?
NPPES lists Massachusetts license number 253594, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Daniel Louis Aaron, M.D. prescribe under Medicare Part D?
In 2024, Daniel Louis Aaron, M.D. had 253 Medicare Part D claims for 98 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. 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.