Katherine Ren, DO
Emergency Medicine Physician · Newark, DE
Katherine Ren, DO is an emergency medicine physician with a practice address in Newark, Delaware, and NPI 1275160160, issued on Mar 23, 2020. Check the license (Delaware C2-0024694, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Katherine Ren
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- C2-0024694 DE
Self-reported in NPPES; status is on the state search - Practice location
- 4755 Ogletown Stanton RD, Newark, DE 19718
- Phone
- (302) 733-1000
- Enumerated
- Mar 23, 2020
- Record last updated
- Jul 9, 2025
- Medicare enrollment
- Enrolled (PECOS I20250728002652); accepts Medicare assignment
- Medical or professional school
- Touro Un Col Of Osteopathic Medicine, New York, 2020
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 243 in Delaware → Look up another NPI →
Also registered at 4755 Ogletown Stanton RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Gounathan Adly, PHARMDStudent in an Organized Health Care Education/Training Program1215357082
- Inongo Agbormbai, DOStudent in an Organized Health Care Education/Training Program1497515654
- Mansoor Ahmad, MDInterventional Cardiology Physician1184014102
Verify Katherine Ren in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
Search for license C2-0024694Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.2 times the Medicare Part D claims of the average emergency medicine physician in 2024
723 Medicare Part D claims for 162 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Atorvastatin Calcium58 claims
- Amlodipine Besylate45 claims
- Lisinopril27 claims
- Sertraline Hcl23 claims
- Gabapentin21 claims
- Olmesartan Medoxomil16 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.
Bills Medicare through 2 group practices
- Bayhealth Emergency Physicians LLCDover, DE
- Christiana Care Emergency Physicians LLCWilmington, DE
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Ren among 243 emergency medicine physician records in Delaware
Katherine Ren, DO is one of 243 emergency medicine physician records with a practice address in Delaware. 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 2020, is newer than 73% of them.
- NPI issued2020 · 73% of these records are older, 21% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 51% of these records are
- Graduated2020 · median 2010 among the 123 with a school on file
- Record last updated2025 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
142 emergency medicine physician records list a practice address in Newark
They are 142 of the 4,662 NPPES records with a practice address in Newark, and 243 emergency medicine physician records in Delaware.
All 243 in Delaware → Every provider in Newark → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Paul Anderson, MDNewark, DE 197181003894817
- Brian Burgess, MDNewark, DE 197181013995828
- Leo Burns, MDNewark, DE 197181083692792
- Cory Carpenter, MDNewark, DE 197181285612093
- James Carroll, MDNewark, DE 197181295713006
- Angelo Grillo, MDNewark, DE 197181891773602
- Anita Hodson, MDNewark, DE 197181194703900
- Steven Kushner, MDNewark, DE 197181306824107
Common questions
What is Katherine Ren, DO's NPI number?
Katherine Ren, DO's National Provider Identifier (NPI) is 1275160160, issued on Mar 23, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Ren, DO located?
The NPPES record lists a practice address at 4755 Ogletown Stanton RD, Newark, DE, 19718. Phone: (302) 733-1000. Providers update this record themselves, so call before visiting.
How can I verify Katherine Ren, DO's license?
NPPES lists Delaware license number C2-0024694, as entered by the provider. Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katherine Ren, DO prescribe under Medicare Part D?
In 2024, Katherine Ren, DO had 723 Medicare Part D claims for 162 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.