Curr Opin Nephrol Hypertens
Hemodialysis, HomeKidney Failure, ChronicNursing Homes
Dr. Leonard Stern, MD
NPI1124190228
- Medicare services, 2016
- 302
- Part D claims, 2024
- 1,297
- Publications
- 8
- Industry payments
- $114,463
- Affiliated sites
- 1
- Practice address
- 622 W 168th St, New York, NY 10032
- Practice phone
- Call (212) 297-4255
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Columbia University Irving Medical Center
New York, New York
Find Dr. Stern's professional email, personal email and mobile number
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Dr. Leonard Stern is a nephrologist in New York, New York
Dr. Stern practices at Columbia University Irving Medical Center in New York, New York.
Dr. Stern's NPI, 1124190228, was assigned on November 14, 2006. Dr. Stern graduated from New York Medical College in 1975. Dr. Stern holds New York license 129163.
NPI and contact details
- NPI
- 1124190228NPI Registry (opens in a new tab)
- NPI enumeration date
- November 14, 2006
- NPI status
- Active
- Practice phone
- (212) 297-4255
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1975
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Leonard Stern practices at Columbia University Irving Medical Center in New York, New York
Dr. Stern's primary practice is Columbia University Irving Medical Center, at 622 W 168th St, New York, NY 10032 in New York County. The practice phone is (212) 297-4255.
- Columbia University Irving Medical Center622 W 168th St, New York, NY 10032 · New York CountyPhone(212) 297-4255
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Leonard Stern is affiliated with 2 sites of care and 2 medical groups
Dr. Stern's primary practice is Columbia University Irving Medical Center in New York, New York. The medical group on file is ColumbiaDoctors. Dmand AI also links Dr. Stern to 1 more group practice or clinic and 1 medical group, each named with a free account.
Columbia University Irving Medical CenterPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Leonard Stern's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stern practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Columbia University Irving Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Leonard Stern is one of 914 nephrologists in New York
Nephrology is Dr. Stern's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Stern is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Stern's licenses on file in 5 states: New York, New Jersey, Connecticut, Florida and Maine.
Specialties and state licenses
- Nephrology, New YorkPrimary
- New Jersey license
- Connecticut license
- Florida license
- Maine license
Nephrologists near Dr. Stern
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
Dr. Leonard Stern billed Medicare for 302 services in 2016
CMS data shows 302 Medicare services from Dr. Stern across 8 procedure codes in 2016. Medicare paid $29,962 for them. Every service was in an office.
Medicare services, 2016302
Paid by Medicare$29,962
Procedure codes8
Dr. Stern's Medicare services by type, 2016
- Office and hospital visits222
- Tests and treatments45
- Other services35
Dr. Stern compared with the New York median for nephrologists, 2016
- Dr. Stern
- New York median
- Medicare services
- 302vs 68956% below
- Part D claims
- 852vs 43695% above
Medians across 892 nephrologists in New York with Dmand AI profiles that report each measure.
Dr. Stern's most billed Medicare procedure codes, 2016
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. Stern?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Stern and other nephrologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Leonard Stern's patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Dr. Stern's median patient age at 73, with 49% women.
Dr. Stern's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women49%
- Men51%
Source: Dmand AI Patient Panel Data
Dr. Leonard Stern wrote 1,297 Medicare Part D claims in 2024
In 2024, Dr. Stern wrote 1,297 Medicare Part D claims for 91 patients. 76% of them were for generic drugs. CMS names the drug for 852 of them, across 32 drugs with 11 or more claims each, at $215,467 in total drug cost. In 2023, CMS named 901 claims across 35 drugs.
Part D claims, 20241,297
Drugs named by CMS32
Total drug cost$215,467
Part D patients91
Dr. Stern's Part D claims by kind of drug, 2024
- Generic982 claims76%
- Brand-name and other315 claims24%
Dr. Stern'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. Stern's Part D claims, 2024
- Opioids1%12 of 1,297 claims
- Antibiotics2%21 of 1,297 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: 9012024: 8525%
Drugs named by CMS: 32 in 2024, 35 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
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Dr. Leonard Stern has 8 publications on record
Dmand AI links 8 papers to Dr. Stern, published from 2006 to 2024. The most frequent topics are Kidney Failure, Chronic, Renal Dialysis and Purpura, Thrombotic Thrombocytopenic. Dr. Stern has published most often in Am J Kidney Dis. Dr. Stern's most frequent co-authors are Jai Radhakrishnan, MD, Gerald Bernard Appel, MD and Herbert Stanley Chase, MD.
Papers8
Years published2006 to 2024
Dr. Stern's papers by year, 2006 to 2024
Topics Dr. Stern writes about most
- Kidney Failure, Chronic
- Renal Dialysis
- Purpura, Thrombotic Thrombocytopenic
Dr. Stern's most frequent co-authors
- Jai Radhakrishnan, MD2 shared papers
- Gerald Bernard Appel, MD1 shared paper
- Herbert Stanley Chase, MD1 shared paper
Recent publications by Dr. Stern
Drug ResistanceHyperparathyroidism, SecondaryRenal Insufficiency, Chronic
Alveolar Bone LossAnalysis of VarianceBlood Glucose
Clin J Am Soc Nephrol
Bone Density Conservation AgentsCalcitriolCalcium
Am J Kidney Dis
Adrenal Cortex HormonesBlood TransfusionImmunosuppressive Agents
See who Dr. Stern researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Stern works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Leonard Stern received $114,463 in industry payments from 2016 to 2022
CMS Open Payments shows 143 general payments to Dr. Stern from 9 drug and device companies from 2016 to 2022. Honoraria make up the largest share, 52% of the total. Horizon Pharma plc paid the most, $64,274.
General payments to Dr. Stern by program year, 2016 to 2022
General payments to Dr. Stern by kind, 2016 to 2022
$114.5Kin total
- Honoraria$59,22852%
- Speaker and faculty fees$27,87024%
- Travel and lodging$15,21713%
- Consulting fees$8,9028%
- Other$3,2473%
Companies that paid Dr. Stern the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Leonard Stern has 6 awards and honors on record
Dmand AI lists 6 awards for Dr. Stern, most recently Best Doctors in the NY Metro Area: Nephrology in 2024.
Awards and honors for Dr. Stern
- 2024
- Best Doctors in the NY Metro Area: Nephrology
- Fellow (FISN)
- Top Doctors in the US: Nephrology
- 2011
- Fellow (FNKF)
- 2004
- ACP Fellow
- 1993
- ASN Fellow
Source: Dmand AI Professional Profile Data
Dr. Leonard Stern graduated from New York Medical College
Dr. Stern graduated from New York Medical College in 1975. Dr. Stern is a member of ACP, ASN, International Society for Peritoneal Dialysis, ISN, NKF and New York Society of Nephrology.
- Medical school
- Board certified in internal medicine
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Sources for Dr. Leonard Stern'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 Data |
| 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) |
| 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Leonard Stern
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. Leonard Stern's NPI number?
Dr. Leonard Stern's NPI number is 1124190228. It was assigned on November 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Leonard Stern?
Dr. Leonard Stern is a nephrologist in New York, New York. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Leonard Stern practice?
Dr. Stern practices at 622 W 168th St, New York, NY 10032. Dr. Stern's primary practice is Columbia University Irving Medical Center in New York, New York. Dmand AI also links Dr. Stern to 1 group practice or clinic and 1 medical group.
What is Dr. Leonard Stern's office phone number?
The practice phone on file for Dr. Stern is (212) 297-4255.
What is Dr. Leonard Stern's medical license number?
Dr. Stern holds New York license 129163, one of the licenses on file in 5 states.
Which states has Dr. Leonard Stern been licensed in?
Dmand AI has state licenses on file for Dr. Stern in New York (1976 to 2026), New Jersey (2022 to 2027), Connecticut (1979 to 2026), Florida (2021 to 2026) and Maine (2005 to 2026).
What medical group is Dr. Leonard Stern part of?
Dr. Stern is linked to ColumbiaDoctors. Dmand AI links Dr. Stern to 1 more medical group.
Does Dr. Leonard Stern accept Medicare?
Yes. CMS data shows Dr. Stern billed Medicare for 302 services in 2016.
Is Dr. Leonard Stern board certified?
Yes. Dr. Stern is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Leonard Stern bill to Medicare?
In 2016, Dr. Stern's most billed Medicare services were office visit, established patient (99215), medicare service (G0438) and office visit, established patient (99214).
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Where did Dr. Leonard Stern go to medical school?
Dr. Stern graduated from New York Medical College in 1975.
What drugs does Dr. Leonard Stern prescribe most?
In 2024 Medicare Part D data, Dr. Stern's most prescribed drugs by claims were Atorvastatin Calcium, Allopurinol and Ezetimibe.
Has Dr. Leonard Stern received payments from drug or device companies?
CMS Open Payments shows $114,463 in general payments to Dr. Stern from 9 companies from 2016 to 2022. The largest total came from Horizon Pharma plc.
How long has Dr. Leonard Stern been practicing?
Dr. Stern graduated from medical school in 1975, 51 years ago.
Does Dr. Leonard Stern do research?
Dmand AI links 8 publications to Dr. Stern, published from 2006 to 2024.
Who does Dr. Leonard Stern publish with?
Dr. Stern's most frequent co-authors are Jai Radhakrishnan, MD (2 shared papers), Gerald Bernard Appel, MD (1 shared paper) and Herbert Stanley Chase, MD (1 shared paper).
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