DistillationElectrolysisFatty Acids, Volatile
Dr. Aaron Leininger, DO
NPI1679956452PAC ID0941518955
- Medicare services, 2023
- 59
- Medicare patients, 2024
- 14
- Part D claims, 2021
- 86
- Publications
- 5
- MIPS score, 2024
- 87
- Practice address
- 20 York Street, New Haven, CT 06510
- Practice phone
- Call (203) 688-5900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Yale New Haven Psychiatric Hospital (York St)
Psychiatric Inpatient Facility · New Haven, Connecticut
Find Dr. Leininger'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 Leininger is an orthopedic surgeon in New Haven, Connecticut
Dr. Leininger practices at Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut.
Dr. Leininger's NPI, 1679956452, was assigned on June 30, 2015. Dr. Leininger graduated from Lake Erie College of Osteopathic Medicine in 2015. Dr. Leininger holds Connecticut license 77341.
NPI and contact details
- NPI
- 1679956452NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0941518955
- NPI enumeration date
- June 30, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (203) 688-5900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Aaron Leininger practices at Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut
Dr. Leininger's primary practice is Yale New Haven Psychiatric Hospital (York St), at 20 York Street, New Haven, CT 06510. The practice phone is (203) 688-5900.
- Yale New Haven Psychiatric Hospital (York St)20 York Street, New Haven, CT 06510Phone(203) 688-5900
Source: Dmand AI Affiliation Data
Dr. Aaron Leininger is affiliated with 6 sites of care and 2 medical groups
Dr. Leininger's primary practice is Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut. Dr. Leininger is also affiliated with Yale New Haven Hospital. The medical group on file is Yale Health. Dmand AI also links Dr. Leininger to 2 more group practices and clinics, 2 home health agencies and 1 medical group, each named with a free account.
Yale New Haven Psychiatric Hospital (York St)Primary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Aaron Leininger's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leininger practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Yale New Haven Psychiatric Hospital (York St) | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every site where Dr. Leininger practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Aaron Leininger is one of 300 orthopedic surgeons in Connecticut
Orthopaedic surgery is Dr. Leininger's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Leininger is licensed in Connecticut.
Specialties and state licenses
- Orthopaedic surgery, ConnecticutPrimary
Orthopedic surgeons near Dr. Leininger
Counts of orthopedic surgeons 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 Leininger billed Medicare for 59 services in 2023
CMS data shows 59 Medicare services from Dr. Leininger across 3 procedure codes in 2023, for 14 Medicare patients. Medicare paid $17,266 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202359
Medicare patients14
Paid by Medicare$17,266
Procedure codes3
Dr. Leininger's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 2162023: 4579%
- Surgery
- 2022: 602023: 1477%
Dr. Leininger compared with the Connecticut median for orthopedic surgeons, 2023
- Dr. Leininger
- Connecticut median
- Medicare services
- 59vs 86493% below
- Medicare patients
- 14vs 20793% below
- Part D claims
- 86vs 12230% below
Medians across 297 orthopedic surgeons in Connecticut with Dmand AI profiles that report each measure.
Dr. Leininger's most billed Medicare procedure codes, 2023
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. Leininger?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Leininger and other orthopedic surgeons in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Aaron Leininger treated 14 Medicare patients in 2024, average age 74
CMS counts 14 Medicare patients who saw Dr. Leininger in 2024. 75% of them have arthritis, and 75% have high cholesterol. Their average risk score is 1.25, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Leininger's median patient age at 69, with 54% women.
Medicare patients, 202414
Average age74
Average risk score1.25
Chronic conditions among Dr. Leininger's Medicare patients, 2024
- Arthritis75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Dr. Leininger'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
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Aaron Leininger wrote 86 Medicare Part D claims in 2021
In 2021, Dr. Leininger wrote 86 Medicare Part D claims. They cover 4 drugs, with $399 in total drug cost. In 2020, CMS named 18 claims across 1 drug.
Part D claims, 202186
Drugs named by CMS4
Total drug cost$399
Dr. Leininger's most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 182021: 86378%
Drugs named by CMS: 4 in 2021, 1 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Aaron Leininger scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Leininger for performance year 2024, reported as part of a group. Dr. Leininger accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Leininger's MIPS scores, performance year 2024
- 87of 100Final score
- 77.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Hip replacement: 1 to 10 procedures (CMS shows small counts as a range)
Knee replacement: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
For MedTech and pharma teams
Find orthopedic surgeons like Dr. Leininger by procedure volume and prescribing
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 Leininger has 5 publications on record
Dmand AI links 5 papers to Dr. Leininger, published from 2021 to 2024. 2023 was the busiest year, with 2. The most frequent topics are Anaerobiosis, Bioreactors and Methane. Dr. Leininger has published most often in Environ Sci Ecotechnol. Dr. Leininger's most frequent co-author is Xinyi Wang, MSW.
Papers5
Years published2021 to 2024
Dr. Leininger's papers by year, 2021 to 2024
Topics Dr. Leininger writes about most
- Anaerobiosis
- Bioreactors
- Methane
Dr. Leininger's most frequent co-authors
Recent publications by Dr. Leininger
Bioresour Technol
AnaerobiosisBioreactorsCharcoal
See who Dr. Leininger researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Leininger works with, so you can find a warm path to the right orthopedic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Aaron Leininger received $15,638 in industry payments from 2016 to 2025
CMS Open Payments shows 48 general payments to Dr. Leininger from 14 drug and device companies from 2016 to 2025. Education make up the largest share, 50% of the total. Smith & Nephew, Inc. paid the most, $10,000.
General payments to Dr. Leininger by program year, 2016 to 2025
General payments to Dr. Leininger by kind, 2016 to 2025
$15.6Kin total
- Education$7,80150%
- Grants$5,00032%
- Food and beverage$1,97113%
- Travel and lodging$8666%
Companies that paid Dr. Leininger the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Aaron Leininger graduated from Lake Erie College of Osteopathic Medicine
Dr. Leininger graduated from Lake Erie College of Osteopathic Medicine in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Aaron Leininger'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) |
| 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (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 Leininger
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 Leininger's NPI number?
Dr. Aaron Leininger's NPI number is 1679956452. It was assigned on June 30, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Aaron Leininger?
Dr. Aaron Leininger is an orthopedic surgeon in New Haven, Connecticut. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Aaron Leininger practice?
Dr. Leininger practices at 20 York Street, New Haven, CT 06510. Dr. Leininger's primary practice is Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut. Dmand AI also links Dr. Leininger to 2 group practices and clinics, 2 home health agencies and 1 medical group.
What is Dr. Aaron Leininger's office phone number?
The practice phone on file for Dr. Leininger is (203) 688-5900.
What is Dr. Aaron Leininger's medical license number?
Dr. Leininger holds Connecticut license 77341.
Which hospitals is Dr. Aaron Leininger affiliated with?
Dr. Leininger is affiliated with Yale New Haven Hospital.
What medical group is Dr. Aaron Leininger part of?
Dr. Leininger is linked to Yale Health. Dmand AI links Dr. Leininger to 1 more medical group.
Does Dr. Aaron Leininger accept Medicare?
Yes. CMS data shows Dr. Leininger billed Medicare for 59 services in 2023, and Dr. Leininger accepts Medicare assignment.
What is Dr. Aaron Leininger's MIPS score?
Dr. Leininger's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
How many Medicare patients does Dr. Aaron Leininger see?
CMS counts 14 Medicare patients who saw Dr. Leininger in 2024, with an average age of 74.
Show 7 more questionsShow fewer questions
What services does Dr. Aaron Leininger bill to Medicare?
In 2023, Dr. Leininger's most billed Medicare services were hospital inpatient care (99222), surgery: bones and joints (27236) and hospital inpatient care (99221).
Where did Dr. Aaron Leininger go to medical school?
Dr. Leininger graduated from Lake Erie College of Osteopathic Medicine in 2015.
What drugs does Dr. Aaron Leininger prescribe most?
In 2021 Medicare Part D data, Dr. Leininger's most prescribed drugs by claims were Tramadol HCl, Meloxicam and Oxycodone HCl.
Has Dr. Aaron Leininger received payments from drug or device companies?
CMS Open Payments shows $15,638 in general payments to Dr. Leininger from 14 companies from 2016 to 2025. The largest total came from Smith & Nephew, Inc.
How long has Dr. Aaron Leininger been practicing?
Dr. Leininger graduated from medical school in 2015, 11 years ago.
Does Dr. Aaron Leininger do research?
Dmand AI links 5 publications to Dr. Leininger, published from 2021 to 2024.
Who does Dr. Aaron Leininger publish with?
Dr. Leininger's most frequent co-authors are Xinyi Wang, MSW (1 shared paper).
Selling to orthopaedic surgery practices?
See orthopedic surgeons in Connecticut 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