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Dr. Alexander M. O'Connell, MD
NPI1699206722PAC ID6901223387
- Medicare services, 2024
- 5,699
- Medicare patients, 2024
- 800
- Part D claims, 2024
- 2,777
- Publications
- 3
- Hospital affiliations
- 1
- Practice address
- 5 Cuba Hill Road, Greenlawn, NY 11740
- Practice phone
- Call (631) 628-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mount Sinai Doctors-Greenlawn
Mammography / Breast Imaging Center · Greenlawn, New York
Find Dr. O'Connell'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. Alexander M. O'Connell is an internist in Greenlawn, New York
Dr. O'Connell practices at Mount Sinai Doctors-Greenlawn in Greenlawn, New York.
Dr. O'Connell's NPI, 1699206722, was assigned on March 21, 2017. Dr. O'Connell graduated from Donald and Barbara Zucker School of Medicine at Hofstra/Northwell in 2017. Dr. O'Connell holds New York license 302747.
NPI and contact details
- NPI
- 1699206722NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6901223387
- NPI enumeration date
- March 21, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (631) 628-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Alexander M. O'Connell practices at Mount Sinai Doctors-Greenlawn in Greenlawn, New York
Dr. O'Connell's primary practice is Mount Sinai Doctors-Greenlawn, at 5 Cuba Hill Road, Greenlawn, NY 11740. The practice phone is (631) 628-5000.
- Mount Sinai Doctors-Greenlawn5 Cuba Hill Road, Greenlawn, NY 11740Phone(631) 628-5000
Source: Dmand AI Affiliation Data
Dr. Alexander M. O'Connell is affiliated with 9 sites of care and 2 medical groups
Dr. O'Connell's primary practice is Mount Sinai Doctors-Greenlawn in Greenlawn, New York. Dr. O'Connell is also affiliated with North Shore University Hospital. The medical group on file is Mount Sinai Doctors Long Island. Dmand AI also links Dr. O'Connell to 5 more home health agencies, 2 group practices and clinics and 1 medical group, each named with a free account. Dr. O'Connell's employer is on file too: a breast imaging center.
Mount Sinai Doctors-GreenlawnPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Alexander M. O'Connell's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Connell practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mount Sinai Doctors-Greenlawn | Available with a free account |
| +8 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Alexander M. O'Connell is one of 9,643 internists in New York
Internal medicine is Dr. O'Connell's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. O'Connell is licensed in New York.
Specialties and state licenses
- Internal medicine, New YorkPrimary
Internists near Dr. O'Connell
Counts of internists 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. Alexander M. O'Connell billed Medicare for 5,699 services in 2024
CMS data shows 5,699 Medicare services from Dr. O'Connell across 28 procedure codes in 2024, for 800 Medicare patients. Medicare paid $254,609 for them. Every service was in an office.
Medicare services, 20245,699
Medicare patients800
Paid by Medicare$254,609
Procedure codes28
Dr. O'Connell's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 2,3552024: 2,78818%
- Office and hospital visits
- 2023: 9052024: 1,27841%
- Other services
- 2023: 3582024: 70196%
- Surgery
- 2023: 5382024: 5757%
- Tests and treatments
- 2023: 1602024: 357123%
Dr. O'Connell compared with the New York median for internists, 2024
- Dr. O'Connell
- New York median
- Medicare services
- 5,699vs 42613.4 times
- Medicare patients
- 800vs 1585.1 times
- Part D claims
- 2,296vs 6223.7 times
Medians across 9,428 internists in New York with Dmand AI profiles that report each measure.
Dr. O'Connell'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. O'Connell and other internists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Alexander M. O'Connell treated 800 Medicare patients in 2024, average age 77
CMS counts 800 Medicare patients who saw Dr. O'Connell in 2024. The largest group is 65 to 74, with 319 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 5% are also on Medicaid. Their average risk score is 1.05, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. O'Connell's median patient age at 63, with 39% women.
Medicare patients, 2024800
Average age77
Average risk score1.05
Also on Medicaid5%
Dr. O'Connell's Medicare patients by age, 2024
Dr. O'Connell's Medicare patients by sex, 2024
- Women43054%
- Men37046%
Chronic conditions among Dr. O'Connell's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis47%
- Ischemic heart disease33%
- Anxiety24%
- Diabetes24%
- Chronic kidney disease19%
- Atrial fibrillation18%
Share of Medicare patients with each condition. A patient can have several.
Dr. O'Connell's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women39%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Alexander M. O'Connell wrote 2,777 Medicare Part D claims in 2024
In 2024, Dr. O'Connell wrote 2,777 Medicare Part D claims for 512 patients. 91% of them were for generic drugs. CMS names the drug for 2,296 of them, across 57 drugs with 11 or more claims each, at $161,668 in total drug cost. In 2023, CMS named 2,111 claims across 53 drugs.
Part D claims, 20242,777
Drugs named by CMS57
Total drug cost$161,668
Part D patients512
Dr. O'Connell's Part D claims by kind of drug, 2024
- Generic2,514 claims91%
- Brand-name and other263 claims9%
Dr. O'Connell'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. O'Connell's Part D claims, 2024
- Antibiotics2%48 of 2,777 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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,1112024: 2,2969%
Drugs named by CMS: 57 in 2024, 53 in 2023.
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. Alexander M. O'Connell offers telehealth to Medicare patients
Dr. O'Connell accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. O'Connell as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Alexander M. O'Connell has 3 publications on record
Dmand AI links 3 papers to Dr. O'Connell, published from 2017 to 2019. Dr. O'Connell's most frequent co-authors are Thomas G. Mcginn, MD, Safiya Iman Richardson, MD and Amiran Baduashvili, MD.
Papers3
Years published2017 to 2019
Dr. O'Connell's papers by year, 2017 to 2019
Dr. O'Connell's most frequent co-authors
- Thomas G. Mcginn, MD2 shared papers
- Safiya Iman Richardson, MD2 shared papers
- Amiran Baduashvili, MD1 shared paper
Recent publications by Dr. O'Connell
Int J Med Inform
Decision Support Systems, ClinicalElectronic Health RecordsEvidence-Based Medicine
See who Dr. O'Connell researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. O'Connell works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Alexander M. O'Connell received $59 in industry payments in 2022
CMS Open Payments shows 1 general payment to Dr. O'Connell from 1 drug or device company in 2022. Debt forgiveness make up the largest share, 100% of the total. Baxter Healthcare paid the most, $59.
Companies that paid Dr. O'Connell the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Alexander M. O'Connell graduated from Donald and Barbara Zucker School of Medicine at Hofstra/Northwell
Dr. O'Connell graduated from Donald and Barbara Zucker School of Medicine at Hofstra/Northwell in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Alexander M. O'Connell'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) |
| 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. Alexander M. O'Connell
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. Alexander M. O'Connell's NPI number?
Dr. Alexander M. O'Connell's NPI number is 1699206722. It was assigned on March 21, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Alexander M. O'Connell?
Dr. Alexander M. O'Connell is an internist in Greenlawn, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Alexander M. O'Connell practice?
Dr. O'Connell practices at 5 Cuba Hill Road, Greenlawn, NY 11740. Dr. O'Connell's primary practice is Mount Sinai Doctors-Greenlawn in Greenlawn, New York. Dmand AI also links Dr. O'Connell to 5 home health agencies, 2 group practices and clinics and 1 medical group.
What is Dr. Alexander M. O'Connell's office phone number?
The practice phone on file for Dr. O'Connell is (631) 628-5000.
What is Dr. Alexander M. O'Connell's medical license number?
Dr. O'Connell holds New York license 302747.
Which hospitals is Dr. Alexander M. O'Connell affiliated with?
Dr. O'Connell is affiliated with North Shore University Hospital.
What medical group is Dr. Alexander M. O'Connell part of?
Dr. O'Connell is linked to Mount Sinai Doctors Long Island. Dmand AI links Dr. O'Connell to 1 more medical group.
Does Dr. Alexander M. O'Connell accept Medicare?
Yes. CMS data shows Dr. O'Connell billed Medicare for 5,699 services in 2024, and Dr. O'Connell accepts Medicare assignment.
Does Dr. Alexander M. O'Connell offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. O'Connell as offering telehealth services.
How many Medicare patients does Dr. Alexander M. O'Connell see?
CMS counts 800 Medicare patients who saw Dr. O'Connell in 2024, with an average age of 77.
Show 7 more questionsShow fewer questions
What services does Dr. Alexander M. O'Connell bill to Medicare?
In 2024, Dr. O'Connell's most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36415) and lab and pathology test (80053).
Where did Dr. Alexander M. O'Connell go to medical school?
Dr. O'Connell graduated from Donald and Barbara Zucker School of Medicine at Hofstra/Northwell in 2017.
What drugs does Dr. Alexander M. O'Connell prescribe most?
In 2024 Medicare Part D data, Dr. O'Connell's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Rosuvastatin Calcium.
Has Dr. Alexander M. O'Connell received payments from drug or device companies?
CMS Open Payments shows $59 in general payments to Dr. O'Connell from 1 company from 2022 to 2022. The largest total came from Baxter Healthcare.
How long has Dr. Alexander M. O'Connell been practicing?
Dr. O'Connell graduated from medical school in 2017, 9 years ago.
Does Dr. Alexander M. O'Connell do research?
Dmand AI links 3 publications to Dr. O'Connell, published from 2017 to 2019.
Who does Dr. Alexander M. O'Connell publish with?
Dr. O'Connell's most frequent co-authors are Thomas G. Mcginn, MD (2 shared papers), Safiya Iman Richardson, MD (2 shared papers) and Amiran Baduashvili, MD (1 shared paper).
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