Dr. Richard M. Gewanter, MD

  • New York, NY
  • Radiation oncologist
NPI1992750582PAC ID9032217492
Medicare services, 2024
1,820
Medicare patients, 2024
329
Part D claims, 2024
183
Publications
15
MIPS score, 2024
91
Practice address
1275 York Avenue, New York, NY 10065
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Memorial Sloan Kettering Cancer Center

Hospital · New York, New York

See all 5 affiliations

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Dr. Richard M. Gewanter is a radiation oncologist in New York, New York

Dr. Gewanter practices at Memorial Sloan Kettering Cancer Center in New York, New York, part of Memorial Sloan Kettering Cancer Center.

Dr. Gewanter's NPI, 1992750582, was assigned on May 23, 2006. Dr. Gewanter graduated from Albert Einstein College of Medicine in 1995. Dr. Gewanter holds New York license 209945-1.

NPI and contact details
Medicare PAC ID
9032217492
NPI enumeration date
May 23, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
57
Medical school graduation
1995

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

Dr. Richard M. Gewanter practices at Memorial Sloan Kettering Cancer Center in New York, New York

Dr. Gewanter's primary practice is Memorial Sloan Kettering Cancer Center, at 1275 York Avenue, New York, NY 10065.

Source: Dmand AI Affiliation Data

Dr. Richard M. Gewanter is affiliated with 2 sites of care and 3 medical groups

Dr. Gewanter's primary practice is Memorial Sloan Kettering Cancer Center in New York, New York, part of Memorial Sloan Kettering Cancer Center. Dr. Gewanter is also affiliated with Mercy Hospital. The medical group on file is Memorial Sloan Kettering Cancer Center. Dmand AI also links Dr. Gewanter to 2 more medical groups, each named with a free account.

See all 5 affiliations for Dr. Gewanter

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Richard M. Gewanter's practice

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

EHR by site
SiteEHR vendor and product
Memorial Sloan Kettering Cancer CenterAvailable with a free account
+1 more site and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Richard M. Gewanter is one of 385 radiation oncologists in New York

Radiation oncology is Dr. Gewanter's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Gewanter is board certified in radiation oncology by the American Board of Radiology. Dmand AI has Dr. Gewanter's licenses on file in 3 states: New York, Florida and Connecticut.

Specialties and state licenses

  • Radiation oncology, New YorkPrimaryLicense 209945-1 · 1998 to 2026 · taxonomy 2085R0001X
  • Florida licenseSince 2024
  • Connecticut license2002 to 2005

Clinical focus

Dmand AI lists bladder cancer radiation, bone cancer radiation, brain cancer radiation, breast cancer radiation, lung cancer radiation and prostate cancer radiation among the conditions Dr. Gewanter treats.

Radiation oncologists near Dr. Gewanter

Counts of radiation 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. Richard M. Gewanter billed Medicare for 1,820 services in 2024

CMS data shows 1,820 Medicare services from Dr. Gewanter across 18 procedure codes in 2024, for 329 Medicare patients. Medicare paid $171,107 for them. Every service was in an office.

Medicare services, 20241,820
Medicare patients329
Paid by Medicare$171,107
Procedure codes18

Dr. Gewanter's Medicare services by type, 2024

  1. Imaging956
  2. Other services513
  3. Office and hospital visits351

Dr. Gewanter compared with the New York median for radiation oncologists, 2024

  • Dr. Gewanter
  • New York median
Medicare services
1,820vs 1,05473% above
Medicare patients
329vs 1602.1 times
Part D claims
99vs 362.8 times

Medians across 368 radiation oncologists in New York with Dmand AI profiles that report each measure.

Dr. Gewanter'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. Gewanter

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

Dr. Richard M. Gewanter treated 329 Medicare patients in 2024, average age 75

CMS counts 329 Medicare patients who saw Dr. Gewanter in 2024. The largest group is 65 to 74, with 157 patients. 75% of them have cancer, and 75% have high blood pressure. 11% are also on Medicaid. Their average risk score is 2.07, 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. Gewanter's median patient age at 74, with 26% women.

Medicare patients, 2024329
Average age75
Average risk score2.07
Also on Medicaid11%

Dr. Gewanter's Medicare patients by age, 2024

Dr. Gewanter's Medicare patients by sex, 2024

  • Women16249%
  • Men16751%

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

  1. Cancer75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Arthritis49%
  5. Ischemic heart disease38%
  6. Diabetes34%
  7. Anxiety31%
  8. Mood disorders26%

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

Dr. Gewanter's patients across all payers

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

Patient panel by age, all payers

Median age 74

Patient panel by sex, all payers

  • Women26%
  • Men74%

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

Dr. Richard M. Gewanter wrote 183 Medicare Part D claims in 2024

In 2024, Dr. Gewanter wrote 183 Medicare Part D claims for 72 patients. 93% of them were for generic drugs. CMS names the drug for 99 of them, across 3 drugs with 11 or more claims each, at $1,081 in total drug cost.

Part D claims, 2024183
Drugs named by CMS3
Total drug cost$1,081
Part D patients72

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

  • Generic170 claims93%
  • Brand-name13 claims7%

Dr. Gewanter'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. Gewanter's Part D claims, 2024

  • Antibiotics7%13 of 183 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

See all prescribing by Dr. Gewanter

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. Richard M. Gewanter scored 91 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Gewanter for performance year 2024, reported as part of a group. Dr. Gewanter accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Gewanter as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Gewanter's MIPS scores, performance year 2024

  • 91of 100Final score
  • 93.7of 100Quality
  • 40of 100Improvement Activities
  • 72of 100Cost

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. Richard M. Gewanter has 15 publications on record

Dmand AI links 15 papers to Dr. Gewanter, published from 2015 to 2023. 2020 was the busiest year, with 4. The most frequent topics are Prostate-Specific Antigen, Prostatic Neoplasms and Radiotherapy, Intensity-Modulated. Dr. Gewanter has published most often in Int J Radiat Oncol Biol Phys. Dr. Gewanter's most frequent co-authors are Borys R. Mychalczak, MD, Marisa A. Kollmeier, MD and Michael J. Zelefsky, MD.

Papers15
Years published2015 to 2023

Dr. Gewanter's papers by year, 2015 to 2023

Topics Dr. Gewanter writes about most

  • Prostate-Specific Antigen
  • Prostatic Neoplasms
  • Radiotherapy, Intensity-Modulated
  • Tomography, X-Ray Computed
  • Organs at Risk
  • Radiation Injuries
  • Radiotherapy Dosage
  • Radiotherapy Planning, Computer-Assisted

Dr. Gewanter's most frequent co-authors

Recent publications by Dr. Gewanter

See all 15 publications and co-authors

See who Dr. Gewanter researches with

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

How network discovery works

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

Dr. Richard M. Gewanter has 2 awards and honors on record

Dmand AI lists 2 awards for Dr. Gewanter, most recently Newsday - Top Doctors on Long Island in 2014.

Awards and honors for Dr. Gewanter

  1. 2014
    • Newsday - Top Doctors on Long Island
    • Top Doctors: New York Metro Area

Source: Dmand AI Professional Profile Data

Dr. Richard M. Gewanter graduated from Albert Einstein College of Medicine

Dr. Gewanter graduated from Albert Einstein College of Medicine in 1995.

  1. Medical schoolAlbert Einstein College of Medicine
  2. Board certified in radiation oncologyAmerican Board of Radiology

Source: Dmand AI Professional Profile Data

Dr. Richard M. Gewanter accepts plans from 13 insurance carriers

Dr. Gewanter is in network with 13 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Excellus BlueCross BlueShield
  • United Healthcare
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • MVP Health Care
  • Regence Health Plans
  • +5 more carriersWith a free account

Plan types Dr. Gewanter accepts, by number of carriers

  1. Medicare8
  2. PPO8
  3. EPO5
  4. HMO4
  5. POS4
  6. Medicaid2

Source: Dmand AI Insurance Network Data

Sources for Dr. Richard M. Gewanter'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand 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
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network 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. Richard M. Gewanter

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. Richard M. Gewanter's NPI number?

Dr. Richard M. Gewanter's NPI number is 1992750582. It was assigned on May 23, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Richard M. Gewanter?

Dr. Richard M. Gewanter is a radiation oncologist in New York, New York. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).

Where does Dr. Richard M. Gewanter practice?

Dr. Gewanter practices at 1275 York Avenue, New York, NY 10065. Dr. Gewanter's primary practice is Memorial Sloan Kettering Cancer Center in New York, New York, part of Memorial Sloan Kettering Cancer Center. Dmand AI also links Dr. Gewanter to 2 medical groups.

What is Dr. Richard M. Gewanter's medical license number?

Dr. Gewanter holds New York license 209945-1, one of the licenses on file in 3 states.

Which states has Dr. Richard M. Gewanter been licensed in?

Dmand AI has state licenses on file for Dr. Gewanter in New York (1998 to 2026), Florida (since 2024) and Connecticut (2002 to 2005).

Which hospitals is Dr. Richard M. Gewanter affiliated with?

Dr. Gewanter practices at Memorial Sloan Kettering Cancer Center in New York, New York. Dr. Gewanter is also affiliated with Mercy Hospital.

What medical group is Dr. Richard M. Gewanter part of?

Dr. Gewanter is linked to Memorial Sloan Kettering Cancer Center. Dmand AI links Dr. Gewanter to 2 more medical groups.

Does Dr. Richard M. Gewanter accept Medicare?

Yes. CMS data shows Dr. Gewanter billed Medicare for 1,820 services in 2024, and Dr. Gewanter accepts Medicare assignment.

Does Dr. Richard M. Gewanter offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Gewanter as offering telehealth services.

What is Dr. Richard M. Gewanter's MIPS score?

Dr. Gewanter's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.

Show 9 more questionsShow fewer questions

How many Medicare patients does Dr. Richard M. Gewanter see?

CMS counts 329 Medicare patients who saw Dr. Gewanter in 2024, with an average age of 75.

Is Dr. Richard M. Gewanter board certified?

Yes. Dr. Gewanter is board certified in radiation oncology by the American Board of Radiology.

What services does Dr. Richard M. Gewanter bill to Medicare?

In 2024, Dr. Gewanter's most billed Medicare services were medicare service (G6002), radiation oncology (77300) and office visit, established patient (99213).

Where did Dr. Richard M. Gewanter go to medical school?

Dr. Gewanter graduated from Albert Einstein College of Medicine in 1995.

What drugs does Dr. Richard M. Gewanter prescribe most?

In 2024 Medicare Part D data, Dr. Gewanter's most prescribed drugs by claims were Tamsulosin HCl, Oxybutynin Chloride ER and Pentoxifylline.

How long has Dr. Richard M. Gewanter been practicing?

Dr. Gewanter graduated from medical school in 1995, 31 years ago.

Does Dr. Richard M. Gewanter do research?

Dmand AI links 15 publications to Dr. Gewanter, published from 2015 to 2023.

Who does Dr. Richard M. Gewanter publish with?

Dr. Gewanter's most frequent co-authors are Borys R. Mychalczak, MD (6 shared papers), Marisa A. Kollmeier, MD (5 shared papers) and Michael J. Zelefsky, MD (5 shared papers).

What insurance does Dr. Richard M. Gewanter accept?

Dr. Gewanter is in network with 13 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

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