Aaron Leininger, D.O.
Orthopaedic Surgery Physician · New Haven, CT
Aaron Leininger, D.O. is an orthopaedic surgery physician with a practice address in New Haven, Connecticut, and NPI 1679956452, issued on Jun 30, 2015. Check the license (Connecticut 77341, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Aaron Leininger
- Credential
- D.O.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- 77341 CT
Self-reported in NPPES; status is on the state search - Practice location
- 47 College St, New Haven, CT 06510
- Phone
- (877) 925-3637
- Enumerated
- Jun 30, 2015
- Record last updated
- Jul 23, 2024
- Medicare enrollment
- Enrolled (PECOS I20240920001507); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2015
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 348 in Connecticut → Look up another NPI →
Also registered at 47 College St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Raj Gala, MDOrthopaedic Surgery of the Spine Physician1457797276
- Emma Kozinn, PA-CPhysician Assistant1871345751
- Alexandra Schlapp, PA-CPhysician Assistant1720764921
- Dominick Tuason, MDOrthopaedic Surgery Physician1588867790
- Michael Weinstock, M.D.Otolaryngology Physician1639586464
- Ariel Williams, M.D.Orthopaedic Surgery Physician1811211337
Verify Aaron Leininger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 77341Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $6,692.77
10 payments; by number, the most common kind was food and beverage; the largest payer was Smith+Nephew, 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 2 group practices
- Rehabilitation Associates IncFairfield, CT
- Yale UniversityNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Aaron Leininger among 348 orthopaedic surgery physician records in Connecticut
Aaron Leininger, D.O. is one of 348 orthopaedic surgery physician records with a practice address in Connecticut. 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 2015, is newer than 88% of them.
- NPI issued2015 · 88% of these records are older, 10% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2015 · median 2000 among the 224 with a school on file
- Record last updated2024 · 66% 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 Connecticut 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 Connecticut
There are 348 orthopaedic surgery physician records in Connecticut.
All 348 in Connecticut → Every provider in New Haven → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Yash Chaudhry, DONew Haven, CT 065101639799042
- Elizabeth Gardner, MDNew Haven, CT 065101477711752
- Assaf Kadar, MDNew Haven, CT 065101124520523
- Mengnai Li, MDNew Haven, CT 065101538189733
- Xuan Luo, MDNew Haven, CT 065101457613259
- Ilda Molloy, M.D.New Haven, CT 065101285097378
- Jonathan Salandra, DONew Haven, CT 065101174186266
- John Shine, M.D.New Haven, CT 065101336128297
Common questions
What is Aaron Leininger, D.O.'s NPI number?
Aaron Leininger, D.O.'s National Provider Identifier (NPI) is 1679956452, issued on Jun 30, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Aaron Leininger, D.O. located?
The NPPES record lists a practice address at 47 College St, New Haven, CT, 06510. Phone: (877) 925-3637. Providers update this record themselves, so call before visiting.
How can I verify Aaron Leininger, D.O.'s license?
NPPES lists Connecticut license number 77341, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. 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.