Antithyroid AgentsDrug Therapy, CombinationHypothyroidism
Dr. Samuel Refetoff, MD
NPI1518020031PAC ID2961655675
- Part D claims, 2022
- 11
- Publications
- 126
- Hospital affiliations
- 1
- Industry payments
- $5,798
- Medical group
- 1
- Practice address
- 5721 S Maryland Ave, Chicago, IL 60637
- Practice phone
- Call (773) 702-1530
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Comer Children's Hospital - Hyde Park
Chicago, Illinois
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Dr. Samuel Refetoff is an endocrinologist in Chicago, Illinois
Dr. Refetoff practices at Comer Children's Hospital - Hyde Park in Chicago, Illinois.
Dr. Refetoff's NPI, 1518020031, was assigned on December 18, 2006.
NPI and contact details
- NPI
- 1518020031NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2961655675
- NPI enumeration date
- December 18, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (773) 702-1530
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 89
- Medical school graduation
- 1963
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Samuel Refetoff practices at Comer Children's Hospital - Hyde Park in Chicago, Illinois
Dr. Refetoff's primary practice is Comer Children's Hospital - Hyde Park, at 5721 S Maryland Ave, Chicago, IL 60637 in Cook County. The practice phone is (773) 702-1530.
- Comer Children's Hospital - Hyde Park5721 S Maryland Ave, Chicago, IL 60637 · Cook CountyPhone(773) 702-1530
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Samuel Refetoff is affiliated with 3 sites of care and 1 medical group
Dr. Refetoff's primary practice is Comer Children's Hospital - Hyde Park in Chicago, Illinois. Dr. Refetoff is also affiliated with University of Chicago Medical Center. The medical group on file is UChicago Medicine Physicians. Dmand AI also links Dr. Refetoff to 1 more group practice or clinic, named with a free account.
Comer Children's Hospital - Hyde ParkPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Samuel Refetoff's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Refetoff practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Comer Children's Hospital - Hyde Park | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Samuel Refetoff is one of 358 endocrinologists in Illinois
Endocrinology, diabetes and metabolism is Dr. Refetoff's primary specialty in the NPI Registry, under taxonomy code 207RE0101X. Dr. Refetoff has a license on file in Illinois.
Specialties and state licenses
- Endocrinology, diabetes and metabolism, Illinois
Endocrinologists near Dr. Refetoff
Counts of endocrinologists 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. Samuel Refetoff's patients have a median age of 72
Across all payers, Dmand AI patient panel data puts Dr. Refetoff's median patient age at 72, with 83% women.
Dr. Refetoff's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women83%
- Men17%
Source: Dmand AI Patient Panel Data
Dr. Samuel Refetoff wrote 11 Medicare Part D claims in 2022
In 2022, Dr. Refetoff wrote 11 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $438 in total drug cost. In 2021, CMS named 14 claims across 1 drug.
Part D claims, 202211
Drugs named by CMS1
Total drug cost$438
Dr. Refetoff's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 142022: 1121%
Drugs named by CMS: 1 in 2022, 1 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Samuel Refetoff takes part in Medicare
Dr. Refetoff accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Samuel Refetoff has 126 publications on record
Dmand AI links 126 papers to Dr. Refetoff, published from 2010 to 2024. 2016 was the busiest year, with 10. The most frequent topics are Thyroid Hormones, Thyroid Gland and Thyrotropin. Dr. Refetoff has published most often in Thyroid. Dr. Refetoff's most frequent co-authors are Roy E. Weiss, MD, Antonio Bianco, MD and Sylvia Lou Asa, MD, PhD.
Papers126
Years published2010 to 2024
Dr. Refetoff's papers by year, 2015 to 2024
Topics Dr. Refetoff writes about most
- Thyroid Hormones
- Thyroid Gland
- Thyrotropin
- Mice, Knockout
- Congenital Hypothyroidism
- Thyroxine
- Symporters
- Monocarboxylic Acid Transporters
Dr. Refetoff's most frequent co-authors
- Roy E. Weiss, MD32 shared papers
- Antonio Bianco, MD3 shared papers
- Sylvia Lou Asa, MD, PhD2 shared papers
Recent publications by Dr. Refetoff
EuropeSocieties, MedicalThyroid Diseases
Chromosomes, Human, Pair 15Enhancer Elements, GeneticMicroRNAs
Induced Pluripotent Stem CellsMonocarboxylic Acid TransportersMuscle Hypotonia
GenotypeThyroid Hormone Receptors betaThyroid Neoplasms
See who Dr. Refetoff researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Refetoff works with, so you can find a warm path to the right endocrinologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Samuel Refetoff received $5,798 in industry payments from 2016 to 2020
CMS Open Payments shows 3 general payments to Dr. Refetoff from 3 drug and device companies from 2016 to 2020. Consulting fees make up the largest share, 96% of the total. GE Healthcare paid the most, $5,550.
General payments to Dr. Refetoff by program year, 2016 to 2020
General payments to Dr. Refetoff by kind, 2016 to 2020
$5.8Kin total
- Consulting fees$5,55096%
- Food and beverage$2484%
Companies that paid Dr. Refetoff the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Samuel Refetoff'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 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) |
| 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) |
| 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. Samuel Refetoff
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. Samuel Refetoff's NPI number?
Dr. Samuel Refetoff's NPI number is 1518020031. It was assigned on December 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Samuel Refetoff?
Dr. Samuel Refetoff is an endocrinologist in Chicago, Illinois. The primary specialty in the NPI Registry is Endocrinology, Diabetes & Metabolism Physician (taxonomy code 207RE0101X).
Where does Dr. Samuel Refetoff practice?
Dr. Refetoff practices at 5721 S Maryland Ave, Chicago, IL 60637. Dr. Refetoff's primary practice is Comer Children's Hospital - Hyde Park in Chicago, Illinois. Dmand AI also links Dr. Refetoff to 1 group practice or clinic.
What is Dr. Samuel Refetoff's office phone number?
The practice phone on file for Dr. Refetoff is (773) 702-1530.
Which hospitals is Dr. Samuel Refetoff affiliated with?
Dr. Refetoff is affiliated with University of Chicago Medical Center.
What medical group is Dr. Samuel Refetoff part of?
Dr. Refetoff is linked to UChicago Medicine Physicians.
Does Dr. Samuel Refetoff accept Medicare?
Yes. CMS lists Dr. Refetoff as accepting Medicare assignment.
What drugs does Dr. Samuel Refetoff prescribe most?
In 2022 Medicare Part D data, Dr. Refetoff's most prescribed drugs by claims were Levothyroxine Sodium.
Has Dr. Samuel Refetoff received payments from drug or device companies?
CMS Open Payments shows $5,798 in general payments to Dr. Refetoff from 3 companies from 2016 to 2020. The largest total came from GE Healthcare.
How long has Dr. Samuel Refetoff been practicing?
Dr. Refetoff graduated from medical school in 1963, 63 years ago.
Does Dr. Samuel Refetoff do research?
Dmand AI links 126 publications to Dr. Refetoff, published from 2010 to 2024.
Who does Dr. Samuel Refetoff publish with?
Dr. Refetoff's most frequent co-authors are Roy E. Weiss, MD (32 shared papers), Antonio Bianco, MD (3 shared papers) and Sylvia Lou Asa, MD, PhD (2 shared papers).
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