Dr. Lloyd E. Ratner, MD

  • New York, NY
  • Transplant surgery physician
NPI1437190089PAC ID9931161361
Medicare services, 2024
77
Medicare patients, 2024
58
Part D claims, 2024
32
Publications
73
MIPS score, 2024
100
Practice address
630 W 168th St, New York, NY 10032
Practice phone
Call (212) 342-5155
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Trustees of Columbia University in the City of New York

New York, New York

See all 5 affiliations

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Dr. Lloyd E. Ratner is a transplant surgery physician in New York, New York

Dr. Ratner practices at Trustees of Columbia University in the City of New York in New York, New York.

Dr. Ratner's NPI, 1437190089, was assigned on June 8, 2006. Dr. Ratner graduated from Hahnemann University College of Medicine in 1983. Dr. Ratner holds New York license 1696971.

NPI and contact details
Medicare PAC ID
9931161361
NPI enumeration date
June 8, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(212) 342-5155
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
69
Medical school graduation
1983

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Lloyd E. Ratner practices at Trustees of Columbia University in the City of New York in New York, New York

Dr. Ratner's primary practice is Trustees of Columbia University in the City of New York, at 630 W 168th St, New York, NY 10032 in New York County. The practice phone is (212) 342-5155.

  • Trustees of Columbia University in the City of New York
    630 W 168th St, New York, NY 10032 · New York CountyPhone(212) 342-5155

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Lloyd E. Ratner is affiliated with 3 sites of care and 2 medical groups

Dr. Ratner's primary practice is Trustees of Columbia University in the City of New York in New York, New York. Dr. Ratner is also affiliated with NewYork-Presbyterian/Weill Cornell Medical Center. The medical group on file is ColumbiaDoctors. Dmand AI also links Dr. Ratner to 1 more home health agency and 1 medical group, each named with a free account.

See all 5 affiliations for Dr. Ratner

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Lloyd E. Ratner's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ratner practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Trustees of Columbia University in the City of New YorkAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Lloyd E. Ratner is one of 87 transplant surgery physicians in New York

Transplant surgery is Dr. Ratner's primary specialty in the NPI Registry, under taxonomy code 204F00000X. Dr. Ratner is licensed in New York.

Specialties and state licenses

  • Transplant surgery, New YorkPrimaryLicense 1696971 · taxonomy 204F00000X

Transplant surgery physicians near Dr. Ratner

Counts of transplant surgery physicians 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. Lloyd E. Ratner billed Medicare for 77 services in 2024

CMS data shows 77 Medicare services from Dr. Ratner across 4 procedure codes in 2024, for 58 Medicare patients. Medicare paid $63,020 for them.

Medicare services, 202477
Medicare patients58
Paid by Medicare$63,020
Procedure codes4

Dr. Ratner's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Surgery
2023: 1232024: 6349%
Office and hospital visits
2023: 392024: 1464%

Where Dr. Ratner's Medicare services took place, 2024

  • In an office1418%
  • In a facility6382%

Dr. Ratner compared with the New York median for transplant surgery physicians, 2024

  • Dr. Ratner
  • New York median
Medicare services
77vs 9821% below
Medicare patients
58vs 5114% above
Part D claims
36vs 3213% above

Medians across 83 transplant surgery physicians in New York with Dmand AI profiles that report each measure.

Dr. Ratner'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.

See all procedures by Dr. Ratner

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Lloyd E. Ratner treated 58 Medicare patients in 2024, average age 59

CMS counts 58 Medicare patients who saw Dr. Ratner in 2024. The largest group is under 65, with 31 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 36% are also on Medicaid. Their average risk score is 7.64, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Ratner's median patient age at 59, with 35% women.

Medicare patients, 202458
Average age59
Average risk score7.64
Also on Medicaid36%

Dr. Ratner's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Ratner's Medicare patients by sex, 2024

  • Women2441%
  • Men3459%

Chronic conditions among Dr. Ratner's Medicare patients, 2024

  1. Chronic kidney disease75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Diabetes59%
  5. Ischemic heart disease48%
  6. Heart failure47%
  7. Arthritis29%
  8. Anxiety19%

Share of Medicare patients with each condition. A patient can have several.

Dr. Ratner's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 59

Patient panel by sex, all payers

  • Women35%
  • Men63%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Lloyd E. Ratner wrote 32 Medicare Part D claims in 2024

In 2024, Dr. Ratner wrote 32 Medicare Part D claims for 18 patients. 97% of them were for generic drugs. They cover 3 drugs, with $2,064 in total drug cost.

Part D claims, 202432
Drugs named by CMS3
Total drug cost$2,064
Part D patients18

Dr. Ratner's Part D claims by kind of drug, 2024

  • Generic31 claims97%
  • Brand-name and other1 claims3%

Dr. Ratner's most prescribed drugs by claims, 2023

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

See all prescribing by Dr. Ratner

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. Lloyd E. Ratner scored 100 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Ratner for performance year 2024, reported through an alternative payment model (APM). Dr. Ratner accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Ratner's MIPS scores, performance year 2024

  • 100of 100Final score
  • 85.3of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Lloyd E. Ratner has 73 publications on record

Dmand AI links 73 papers to Dr. Ratner, published from 2015 to 2025. 2020 was the busiest year, with 11. The most frequent topics are Kidney Transplantation, Graft Survival and Graft Rejection. Dr. Ratner has published most often in Am J Transplant. Dr. Ratner's most frequent co-authors are Sumit Mohan, MD, Syed Ali Husain, MD and Geoffrey Kenneth Dube, MD.

Papers73
Years published2015 to 2025

Dr. Ratner's papers by year, 2016 to 2025

Topics Dr. Ratner writes about most

  • Kidney Transplantation
  • Graft Survival
  • Graft Rejection
  • Tissue Donors
  • Kidney
  • Living Donors
  • Kidney Failure, Chronic
  • Tissue and Organ Procurement

Dr. Ratner's most frequent co-authors

Recent publications by Dr. Ratner

See all 73 publications and co-authors

See who Dr. Ratner researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ratner works with, so you can find a warm path to the right transplant surgery physicians.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Lloyd E. Ratner received $51,761 in industry payments from 2016 to 2025

CMS Open Payments shows 66 general payments to Dr. Ratner from 17 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 78% of the total. Sanofi and Genzyme US Companies paid the most, $29,605.

General payments to Dr. Ratner by program year, 2016 to 2025

General payments to Dr. Ratner by kind, 2016 to 2025

$51.8Kin total
  • Consulting fees$40,21578%
  • Honoraria$4,0308%
  • Travel and lodging$3,2116%
  • Food and beverage$2,7335%
  • Other$1,5723%

Companies that paid Dr. Ratner the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Ratner

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Lloyd E. Ratner graduated from Hahnemann University College of Medicine

Dr. Ratner graduated from Hahnemann University College of Medicine in 1983.

  1. Medical schoolHahnemann University College of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Lloyd E. Ratner's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Lloyd E. Ratner

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. Lloyd E. Ratner's NPI number?

Dr. Lloyd E. Ratner's NPI number is 1437190089. It was assigned on June 8, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Lloyd E. Ratner?

Dr. Lloyd E. Ratner is a transplant surgery physician in New York, New York. The primary specialty in the NPI Registry is Transplant Surgery Physician (taxonomy code 204F00000X).

Where does Dr. Lloyd E. Ratner practice?

Dr. Ratner practices at 630 W 168th St, New York, NY 10032. Dr. Ratner's primary practice is Trustees of Columbia University in the City of New York in New York, New York. Dmand AI also links Dr. Ratner to 1 home health agency and 1 medical group.

What is Dr. Lloyd E. Ratner's office phone number?

The practice phone on file for Dr. Ratner is (212) 342-5155.

What is Dr. Lloyd E. Ratner's medical license number?

Dr. Ratner holds New York license 1696971.

Which hospitals is Dr. Lloyd E. Ratner affiliated with?

Dr. Ratner is affiliated with NewYork-Presbyterian/Weill Cornell Medical Center.

What medical group is Dr. Lloyd E. Ratner part of?

Dr. Ratner is linked to ColumbiaDoctors. Dmand AI links Dr. Ratner to 1 more medical group.

Does Dr. Lloyd E. Ratner accept Medicare?

Yes. CMS data shows Dr. Ratner billed Medicare for 77 services in 2024, and Dr. Ratner accepts Medicare assignment.

What is Dr. Lloyd E. Ratner's MIPS score?

Dr. Ratner's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).

How many Medicare patients does Dr. Lloyd E. Ratner see?

CMS counts 58 Medicare patients who saw Dr. Ratner in 2024, with an average age of 59.

Show 7 more questionsShow fewer questions

What services does Dr. Lloyd E. Ratner bill to Medicare?

In 2024, Dr. Ratner's most billed Medicare services were surgery: urinary system (50205), surgery: urinary system (50360) and surgery: urinary system (50323).

Where did Dr. Lloyd E. Ratner go to medical school?

Dr. Ratner graduated from Hahnemann University College of Medicine in 1983.

What drugs does Dr. Lloyd E. Ratner prescribe most?

In 2023 Medicare Part D data, Dr. Ratner's most prescribed drugs by claims were Sulfamethoxazole-Trimethoprim, Valganciclovir HCl and Pantoprazole Sodium.

Has Dr. Lloyd E. Ratner received payments from drug or device companies?

CMS Open Payments shows $51,761 in general payments to Dr. Ratner from 17 companies from 2016 to 2025. The largest total came from Sanofi and Genzyme US Companies.

How long has Dr. Lloyd E. Ratner been practicing?

Dr. Ratner graduated from medical school in 1983, 43 years ago.

Does Dr. Lloyd E. Ratner do research?

Dmand AI links 73 publications to Dr. Ratner, published from 2015 to 2025.

Who does Dr. Lloyd E. Ratner publish with?

Dr. Ratner's most frequent co-authors are Sumit Mohan, MD (39 shared papers), Syed Ali Husain, MD (21 shared papers) and Geoffrey Kenneth Dube, MD (18 shared papers).

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