Dr. Ryan P. Merkow, MD
- Medicare services, 2024
- 62
- Medicare patients, 2024
- 56
- Publications
- 138
- Hospital affiliations
- 1
- Industry payments
- $14,943
- 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
Find Dr. Merkow'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. Ryan P. Merkow is a surgical oncologist in Chicago, Illinois
Dr. Merkow practices at Comer Children's Hospital - Hyde Park in Chicago, Illinois.
Dr. Merkow's NPI, 1396968889, was assigned on April 11, 2007. Dr. Merkow graduated from University of Colorado School of Medicine, Denver in 2007. Dr. Merkow holds Illinois license 036126063.
- NPI
- 1396968889NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305117458
- NPI enumeration date
- April 11, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (773) 702-1530
- 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 Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ryan P. Merkow practices at Comer Children's Hospital - Hyde Park in Chicago, Illinois
Dr. Merkow'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. Ryan P. Merkow is affiliated with 4 sites of care and 2 medical groups
Dr. Merkow's primary practice is Comer Children's Hospital - Hyde Park in Chicago, Illinois. Dr. Merkow is also affiliated with University of Chicago Medical Center. The medical group on file is UChicago Medicine Physicians. Dmand AI also links Dr. Merkow to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Ryan P. Merkow's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Merkow practices, 3 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 |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ryan P. Merkow is one of 56 surgical oncologists in Illinois
Surgical oncology is Dr. Merkow's primary specialty in the NPI Registry, under taxonomy code 2086X0206X. Dr. Merkow is licensed in Illinois.
Specialties and state licenses
- Surgical oncology, IllinoisPrimary
Surgical oncologists near Dr. Merkow
Counts of surgical oncologists 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. Ryan P. Merkow billed Medicare for 62 services in 2024
CMS data shows 62 Medicare services from Dr. Merkow across 4 procedure codes in 2024, all of them office visits, for 56 Medicare patients. Medicare paid $4,487 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Merkow's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 122024: 62417%
Dr. Merkow compared with the Illinois median for surgical oncologists, 2024
- Dr. Merkow
- Illinois median
- Medicare services
- 62vs 20570% below
- Medicare patients
- 56vs 10647% below
Medians across 50 surgical oncologists in Illinois with Dmand AI profiles that report each measure.
Dr. Merkow'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 Dr. Merkow?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Merkow and other surgical oncologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ryan P. Merkow treated 56 Medicare patients in 2024, average age 71
CMS counts 56 Medicare patients who saw Dr. Merkow in 2024. The largest group is 65 to 74, with 37 patients. 75% of them have high blood pressure, and 71% have high cholesterol. Their average risk score is 1.91, 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. Merkow's median patient age at 70, with 48% women.
Dr. Merkow's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Merkow's Medicare patients by sex, 2024
- Women3257%
- Men2443%
Chronic conditions among Dr. Merkow's Medicare patients, 2024
- High blood pressure75%
- High cholesterol71%
- Cancer55%
- Arthritis45%
- Diabetes30%
- Anxiety25%
- Ischemic heart disease25%
- Chronic kidney disease23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Merkow's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women48%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ryan P. Merkow offers telehealth to Medicare patients
Dr. Merkow accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Merkow as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Ryan P. Merkow has 138 publications on record
Dmand AI links 138 papers to Dr. Merkow, published from 2011 to 2025. 2023 was the busiest year, with 14. The most frequent topics are Postoperative Complications, Colorectal Neoplasms and Liver Neoplasms. Dr. Merkow has published most often in J Surg Oncol. Dr. Merkow's most frequent co-authors are David Jason Bentrem, MD, Karl Y. Bilimoria, MD and Anthony Yang, MD.
Dr. Merkow's papers by year, 2015 to 2025
Topics Dr. Merkow writes about most
- Postoperative Complications
- Colorectal Neoplasms
- Liver Neoplasms
- Patient Discharge
- Venous Thromboembolism
- Hospitals
- Medicare
- Hepatic Artery
Dr. Merkow's most frequent co-authors
- David Jason Bentrem, MD53 shared papers
- Karl Y. Bilimoria, MD31 shared papers
- Anthony Yang, MD31 shared papers
Recent publications by Dr. Merkow
J Surg Oncol
See who Dr. Merkow researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Merkow works with, so you can find a warm path to the right surgical oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ryan P. Merkow received $14,943 in industry payments from 2017 to 2025
CMS Open Payments shows 67 general payments to Dr. Merkow from 7 drug and device companies from 2017 to 2025. Consulting fees make up the largest share, 32% of the total. Intuitive Surgical, Inc. paid the most, $7,573.
General payments to Dr. Merkow by program year, 2017 to 2025
General payments to Dr. Merkow by kind, 2017 to 2025
- Consulting fees$4,80032%
- Travel and lodging$4,52930%
- Education$3,25022%
- Food and beverage$1,86512%
- Speaker and faculty fees$5003%
Companies that paid Dr. Merkow the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ryan P. Merkow graduated from University of Colorado School of Medicine, Denver
Dr. Merkow graduated from University of Colorado School of Medicine, Denver in 2007.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ryan P. Merkow'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 DataMedicare Physician & Other Practitioners - 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)Doctors and Clinicians Utilization Data (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. Ryan P. Merkow
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. Ryan P. Merkow's NPI number?
Dr. Ryan P. Merkow's NPI number is 1396968889. It was assigned on April 11, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Ryan P. Merkow?
Dr. Ryan P. Merkow is a surgical oncologist in Chicago, Illinois. The primary specialty in the NPI Registry is Surgical Oncology Physician (taxonomy code 2086X0206X).
Where does Dr. Ryan P. Merkow practice?
Dr. Merkow practices at 5721 S Maryland Ave, Chicago, IL 60637. Dr. Merkow's primary practice is Comer Children's Hospital - Hyde Park in Chicago, Illinois. Dmand AI also links Dr. Merkow to 2 group practices and clinics and 1 medical group.
What is Dr. Ryan P. Merkow's office phone number?
The practice phone on file for Dr. Merkow is (773) 702-1530.
What is Dr. Ryan P. Merkow's medical license number?
Dr. Merkow holds Illinois license 036126063.
Which hospitals is Dr. Ryan P. Merkow affiliated with?
Dr. Merkow is affiliated with University of Chicago Medical Center.
What medical group is Dr. Ryan P. Merkow part of?
Dr. Merkow is linked to UChicago Medicine Physicians. Dmand AI links Dr. Merkow to 1 more medical group.
Does Dr. Ryan P. Merkow accept Medicare?
Yes. CMS data shows Dr. Merkow billed Medicare for 62 services in 2024, and Dr. Merkow accepts Medicare assignment.
Does Dr. Ryan P. Merkow offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Merkow as offering telehealth services.
How many Medicare patients does Dr. Ryan P. Merkow see?
CMS counts 56 Medicare patients who saw Dr. Merkow in 2024, with an average age of 71.
Show 6 more questionsShow fewer questions
What services does Dr. Ryan P. Merkow bill to Medicare?
In 2024, Dr. Merkow's most billed Medicare services were office visit, new patient (99203), office visit, established patient (99213) and office visit, established patient (99214).
Where did Dr. Ryan P. Merkow go to medical school?
Dr. Merkow graduated from University of Colorado School of Medicine, Denver in 2007.
Has Dr. Ryan P. Merkow received payments from drug or device companies?
CMS Open Payments shows $14,943 in general payments to Dr. Merkow from 7 companies from 2017 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Ryan P. Merkow been practicing?
Dr. Merkow graduated from medical school in 2007, 19 years ago.
Does Dr. Ryan P. Merkow do research?
Dmand AI links 138 publications to Dr. Merkow, published from 2011 to 2025.
Who does Dr. Ryan P. Merkow publish with?
Dr. Merkow's most frequent co-authors are David Jason Bentrem, MD (53 shared papers), Karl Y. Bilimoria, MD (31 shared papers) and Anthony Yang, MD (31 shared papers).
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