Jonathan Ross Kaufmann, D.O.
Internal Medicine Physician · Dover, DE
Jonathan Ross Kaufmann, D.O. is an internal medicine physician with a practice address in Dover, Delaware, and NPI 1104953843, issued on Feb 28, 2007. Check the license (Delaware C7-0003467, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Jonathan Ross Kaufmann
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- C7-0003467 DE
Self-reported in NPPES; status is on the state search - Practice location
- 640 S State St, Dover, DE 19901
- Phone
- (302) 744-7581
- Enumerated
- Feb 28, 2007
- Record last updated
- Jul 16, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090720000463); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 2006
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 600 in Delaware → Look up another NPI →
Also registered at 640 S State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kelly Abbrescia, DOEmergency Medicine Physician1992740625
- Sarah Abdallah, MDStudent in an Organized Health Care Education/Training Program1265374789
- Joseph Raphael Ablaza, M.D.Internal Medicine Physician1366892291
- Anastazia Acevedo, PA-CPhysician Assistant1831495282
- Aashish AcharyaInternal Medicine Physician1912523424
- Denita Adams, CRNACertified Registered Nurse Anesthetist1427233964
Verify Jonathan Ross Kaufmann 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 C7-0003467Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Bayhealth Medical Center, IncDover, DE
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jonathan Ross Kaufmann among 600 internal medicine physician records in Delaware
Jonathan Ross Kaufmann, D.O. is one of 600 internal 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 2007, is newer than 33% of them.
- NPI issued2007 · 33% of these records are older, 60% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2006 · median 2008 among the 414 with a school on file
- Record last updated2018 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
44 internal medicine physician records list a practice address in Dover
They are 44 of the 2,137 NPPES records with a practice address in Dover, and 600 internal medicine physician records in Delaware.
All 600 in Delaware → Every provider in Dover → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Joseph Raphael Ablaza, M.D.Dover, DE 199011366892291
- Adeniyi Ajenifuja, MDDover, DE 199011164805982
- Aimen Khan, MDDover, DE 199011083190771
- Muhammad Haneef Khawaja, M.D.Dover, DE 199011295117042
- Francis Lim, MDDover, DE 199011003236415
- Malgorzata Losos, MDDover, DE 199011952611196
- Jose Marte-Santana, MDDover, DE 199011992007165
- Safwan Muhammad, MDDover, DE 199011013403450
Common questions
What is Jonathan Ross Kaufmann, D.O.'s NPI number?
Jonathan Ross Kaufmann, D.O.'s National Provider Identifier (NPI) is 1104953843, issued on Feb 28, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan Ross Kaufmann, D.O. located?
The NPPES record lists a practice address at 640 S State St, Dover, DE, 19901. Phone: (302) 744-7581. Providers update this record themselves, so call before visiting.
How can I verify Jonathan Ross Kaufmann, D.O.'s license?
NPPES lists Delaware license number C7-0003467, 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.
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.