NPPES file of Aug 9, 2026

Ronald D. Ennis, MD

Radiation Oncology Physician · New York, NY

Ronald D. Ennis, MD is a radiation oncology physician with a practice address in New York, New York, and NPI 1780668400, issued on Dec 6, 2005. Check the license (New York 196138, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1780668400
Name
Ronald D. Ennis
Credential
MD
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License numbers
196138 NY
25MA09380900 NJ
Self-reported in NPPES; status is on the state search
Practice location
1000 10TH Ave, New York, NY 10019
Phone
(212) 523-7165
Enumerated
Dec 6, 2005
Record last updated
Jun 3, 2024
Fax
(212) 523-8189
Medicaid ID
01811072 NY
Medicare enrollment
Enrolled (PECOS I20170908001615); accepts Medicare assignment
Medical or professional school
Yale University School Of Medicine, 1990
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1000 10TH Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Fatmaalzahraa AbdelqaderHospitalist Physician1295296473
  2. Minako Abe, MDEmergency Medicine Physician1578635249
  3. Ayelet AbelowHospitalist Physician1073141578
  4. Michael Abiri, M.D.Diagnostic Radiology Physician1598718298
  5. Adal Abonamah, DOStudent in an Organized Health Care Education/Training Program1821790916
  6. Joseph Abraham, MD, MBAStudent in an Organized Health Care Education/Training Program1316649288

Verify Ronald D. Ennis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 196138
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New York license search

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2.1 times the Medicare Part D claims of the average radiation oncology physician in 2024

288 Medicare Part D claims for 62 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.

  1. Ronald Ennis288
  2. Specialty average134

Most prescribed

  1. Tamsulosin Hcl108 claims
  2. Myrbetriq47 claims
  3. Trospium Chloride19 claims
  4. Abiraterone Acetate13 claims
  5. Oxybutynin Chloride13 claims
  6. Oxybutynin Chloride Er13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $18.94

1 payment: food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ronald Ennis$18.94
  2. Specialty average$1,897.85

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Rutgers Health-Rwj Scleroderma ProgramNew Brunswick, NJ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ronald D. Ennis among 449 radiation oncology physician records in New York

Ronald D. Ennis, MD is one of 449 radiation oncology physician records with a practice address in New York. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 86% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated1990 · median 2005 among the 331 with a school on file
  • Record last updated2024 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in New York

There are 449 radiation oncology physician records in New York.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Brock Debenham, M.D.New York, NY 100191073869350
  2. Paul Gliedman, MDNew York, NY 100191285618926
  3. Anthony Nehlsen, MDNew York, NY 100191144753567
  4. Rahul Parikh, M.D.New York, NY 100191124251293
  5. Prashant Vempati, M.D., M.S,New York, NY 100191487017935
  6. Daniel Izon, M.D.New York, NY 100181508889114
  7. Ariel Lederman, MDNew York, NY 100181285052944
  8. Gilbert Lederman, MDNew York, NY 100181346282571

Common questions

What is Ronald D. Ennis, MD's NPI number?

Ronald D. Ennis, MD's National Provider Identifier (NPI) is 1780668400, issued on Dec 6, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Ronald D. Ennis, MD located?

The NPPES record lists a practice address at 1000 10TH Ave, New York, NY, 10019. Phone: (212) 523-7165. Providers update this record themselves, so call before visiting.

How can I verify Ronald D. Ennis, MD's license?

NPPES lists New York license number 196138, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ronald D. Ennis, MD prescribe under Medicare Part D?

In 2024, Ronald D. Ennis, MD had 288 Medicare Part D claims for 62 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.