Dr. Lloyd E. Ratner, MD
- 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
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Trustees of Columbia University in the City of New York
New York, New York
Find Dr. Ratner'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. 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
- 1437190089NPI Registry (opens in a new tab)
- 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 York630 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.
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.
| Site | EHR vendor and product |
|---|---|
| Trustees of Columbia University in the City of New York | Available with a free account |
| +2 more sites and 1 medical group | Available 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 YorkPrimary
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.
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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ratner and other transplant surgery physicians in New York.
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.
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
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes59%
- Ischemic heart disease48%
- Heart failure47%
- Arthritis29%
- 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.
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.
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.
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
- Sumit Mohan, MD39 shared papers
- Syed Ali Husain, MD21 shared papers
- Geoffrey Kenneth Dube, MD18 shared papers
Recent publications by Dr. Ratner
Prog Transplant
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.
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
- 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.
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.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Lloyd E. Ratner'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 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)Clinician Public Reporting: Overall MIPS Performance (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. 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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