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David Alexander Lessman
NPI1487813275PAC ID7719129154
- Medicare services, 2024
- 1,101
- Medicare patients, 2024
- 264
- Part D claims, 2024
- 2,526
- Publications
- 2
- Hospital affiliations
- 1
- Practice address
- 535 East 70th Street, New York, NY 10021
- Practice phone
- Call (212) 606-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find David Lessman'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.
David Alexander Lessman is a nephrologist in New York, New York
David Lessman practices at Hospital for Special Surgery in New York, New York, part of Hospital for Special Surgery.
David Lessman's NPI, 1487813275, was assigned on June 5, 2008. David Lessman graduated from Icahn School of Medicine at Mount Sinai in 2007. David Lessman holds New York license 253662.
NPI and contact details
- NPI
- 1487813275NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7719129154
- NPI enumeration date
- June 5, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (212) 606-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
David Alexander Lessman practices at Hospital for Special Surgery in New York, New York
David Lessman's primary practice is Hospital for Special Surgery, at 535 East 70th Street, New York, NY 10021 in New York County. The practice phone is (212) 606-1000.
- Hospital for Special Surgery535 East 70th Street, New York, NY 10021 · New York CountyPhone(212) 606-1000
Source: Dmand AI Affiliation Data
David Alexander Lessman is affiliated with 5 sites of care and 3 medical groups
David Lessman's primary practice is Hospital for Special Surgery in New York, New York, part of Hospital for Special Surgery. The medical group on file is ColumbiaDoctors. Dmand AI also links David Lessman to 3 more group practices and clinics, 2 medical groups and 1 home health agency, each named with a free account.
ColumbiaDoctors3 group practices and clinicsNames with a free account2 medical groupsNames with a free account1 home health agencyName with a free account
See all 8 affiliations for David LessmanSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at David Alexander Lessman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where David Lessman practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hospital for Special Surgery | Available with a free account |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Hospital for Special Surgery and 6.2K+ hospitals, with verified contacts in the same login.
David Alexander Lessman is one of 914 nephrologists in New York
Nephrology is David Lessman's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. David Lessman is licensed in New York.
Specialties and state licenses
- Nephrology, New YorkPrimary
Nephrologists near David Lessman
Counts of nephrologists 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
David Alexander Lessman billed Medicare for 1,101 services in 2024
CMS data shows 1,101 Medicare services from David Lessman across 20 procedure codes in 2024, for 264 Medicare patients. Medicare paid $59,120 for them. Every service was in an office.
Medicare services, 20241,101
Medicare patients264
Paid by Medicare$59,120
Procedure codes20
David Lessman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 2662024: 37340%
- Office and hospital visits
- 2023: 2872024: 31510%
- Surgery
- 2023: 2452024: 29621%
- Other services
- 2023: 1562024: 9837%
- Lab and pathology
- 2023: 192024: 19No change
David Lessman compared with the New York median for nephrologists, 2024
- David Lessman
- New York median
- Medicare services
- 1,101vs 68960% above
- Medicare patients
- 264vs 21722% above
- Part D claims
- 2,081vs 4364.8 times
Medians across 892 nephrologists in New York with Dmand AI profiles that report each measure.
David Lessman'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 David Lessman?
Medicare shows one payer. Book a meeting to get commercial claims data for David Lessman and other nephrologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
David Alexander Lessman treated 264 Medicare patients in 2024, average age 76
CMS counts 264 Medicare patients who saw David Lessman in 2024. The largest group is 65 to 74, with 118 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.85, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts David Lessman's median patient age at 57, with 40% women.
Medicare patients, 2024264
Average age76
Average risk score0.85
David Lessman's Medicare patients by age, 2024
David Lessman's Medicare patients by sex, 2024
- Women8833%
- Men17667%
Chronic conditions among David Lessman's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis42%
- Chronic kidney disease36%
- Ischemic heart disease21%
- Diabetes20%
- Atrial fibrillation17%
- Cancer17%
Share of Medicare patients with each condition. A patient can have several.
David Lessman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women40%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
David Alexander Lessman wrote 2,526 Medicare Part D claims in 2024
In 2024, David Lessman wrote 2,526 Medicare Part D claims for 267 patients. 86% of them were for generic drugs. CMS names the drug for 2,081 of them, across 53 drugs with 11 or more claims each, at $292,769 in total drug cost. In 2023, CMS named 2,002 claims across 57 drugs.
Part D claims, 20242,526
Drugs named by CMS53
Total drug cost$292,769
Part D patients267
David Lessman's Part D claims by kind of drug, 2024
- Generic2,177 claims86%
- Brand-name and other349 claims14%
David Lessman'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 David Lessman's Part D claims, 2024
- Antibiotics1%35 of 2,526 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: 2,0022024: 2,0814%
Drugs named by CMS: 53 in 2024, 57 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
David Alexander Lessman offers telehealth to Medicare patients
David Lessman accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists David Lessman as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Find nephrologists like David Lessman by procedure volume and prescribing
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David Alexander Lessman has 2 publications on record
Dmand AI links 2 papers to David Lessman, published from 2013 to 2014. David Lessman's most frequent co-authors are Lisette Helene Casagrande, MD, John Cijiang He, MD and Kristin Ann Meliambro, MD.
Papers2
Years published2013 to 2014
David Lessman's most frequent co-authors
- Lisette Helene Casagrande, MD1 shared paper
- John Cijiang He, MD1 shared paper
- Kristin Ann Meliambro, MD1 shared paper
Recent publications by David Lessman
See who David Lessman researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who David Lessman works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
David Alexander Lessman received $1,851 in industry payments from 2016 to 2025
CMS Open Payments shows 61 general payments to David Lessman from 15 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $651.
General payments to David Lessman by program year, 2016 to 2025
Companies that paid David Lessman the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
David Alexander Lessman graduated from Icahn School of Medicine at Mount Sinai
David Lessman graduated from Icahn School of Medicine at Mount Sinai in 2007.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for David Alexander Lessman'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 David Alexander Lessman
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is David Alexander Lessman's NPI number?
David Alexander Lessman's NPI number is 1487813275. It was assigned on June 5, 2008, and it is active in the NPI Registry.
What does David Alexander Lessman specialize in?
David Alexander Lessman is a nephrologist in New York, New York. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does David Alexander Lessman practice?
David Lessman practices at 535 East 70th Street, New York, NY 10021. David Lessman's primary practice is Hospital for Special Surgery in New York, New York, part of Hospital for Special Surgery. Dmand AI also links David Lessman to 3 group practices and clinics, 2 medical groups and 1 home health agency.
What is David Alexander Lessman's office phone number?
The practice phone on file for David Lessman is (212) 606-1000.
What is David Alexander Lessman's medical license number?
David Lessman holds New York license 253662.
Which hospitals is David Alexander Lessman affiliated with?
David Lessman practices at Hospital for Special Surgery in New York, New York.
What medical group is David Alexander Lessman part of?
David Lessman is linked to ColumbiaDoctors. Dmand AI links David Lessman to 2 more medical groups.
Does David Alexander Lessman accept Medicare?
Yes. CMS data shows David Lessman billed Medicare for 1,101 services in 2024, and David Lessman accepts Medicare assignment.
Does David Alexander Lessman offer telehealth?
Yes. The CMS Doctors and Clinicians file lists David Lessman as offering telehealth services.
How many Medicare patients does David Alexander Lessman see?
CMS counts 264 Medicare patients who saw David Lessman in 2024, with an average age of 76.
Show 7 more questionsShow fewer questions
What services does David Alexander Lessman bill to Medicare?
In 2024, David Lessman's most billed Medicare services were surgery: heart and blood vessels (36415), office visit, established patient (99214) and heart test or procedure (93000).
Where did David Alexander Lessman go to medical school?
David Lessman graduated from Icahn School of Medicine at Mount Sinai in 2007.
What drugs does David Alexander Lessman prescribe most?
In 2024 Medicare Part D data, David Lessman's most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Amlodipine Besylate.
Has David Alexander Lessman received payments from drug or device companies?
CMS Open Payments shows $1,851 in general payments to David Lessman from 15 companies from 2016 to 2025. The largest total came from Allergan Inc.
How long has David Alexander Lessman been practicing?
David Lessman graduated from medical school in 2007, 19 years ago.
Does David Alexander Lessman do research?
Dmand AI links 2 publications to David Lessman, published from 2013 to 2014.
Who does David Alexander Lessman publish with?
David Lessman's most frequent co-authors are Lisette Helene Casagrande, MD (1 shared paper), John Cijiang He, MD (1 shared paper) and Kristin Ann Meliambro, MD (1 shared paper).
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