Dr. Jonathan Ross Kaufmann , DO
Internal Medicine • Dover, DE
640 S State St
Dover, DE 19901
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Jonathan Kaufmann is listed in NPPES under Internal Medicine.
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NPI assigned on February 28, 2007; this date does not establish years in practice.
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Published CMS data list 95 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99213 — Established patient outpatient office visit: 43 service units.
- G2211 — Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's: 16 service units.
- 99214 — Established patient outpatient office visit: 14 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 5 records in the table · Guide: How to read Medicare Part B data
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Fewer Medicare Part B services than 90% of clinicians listed under Internal Medicine in Dover, DE (2024, 30 clinicians with data). Median for this group: 960. Middle half: 686 to 1,703.
Fewer Medicare Part B services than 90% of clinicians listed under Internal Medicine in Delaware (2024, 379 clinicians with data). Median for this group: 725. Middle half: 300 to 1,159.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 312 in 2017 to 95 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017–2024.
Practice Location & Contact Primary Location
640 S State St
Dover, DE 19901
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Bayhealth Medical Center, Inc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Philadelphia College Of Osteopathic Medicine
2006
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
82 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $7,997 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $6,071 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019–2025.
Years since graduation
20 years (graduated 2006)
CMS Doctors and Clinicians data list 2006 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2007
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Kaufmann has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Kaufmann as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Dover and Delaware
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 90% of clinicians listed under Internal Medicine in Dover, DE (2024, 30 clinicians with data). Median for this group: 960. Middle half: 686 to 1,703.
Fewer Medicare Part B services than 90% of clinicians listed under Internal Medicine in Delaware (2024, 379 clinicians with data). Median for this group: 725. Middle half: 300 to 1,159.
Medicare-allowed amount
A lower Medicare-allowed amount than 90% of clinicians listed under Internal Medicine in Dover, DE (2024, 30 clinicians with data). Median for this group: $87,097. Middle half: $65,138 to $138,740.
A lower Medicare-allowed amount than 90% of clinicians listed under Internal Medicine in Delaware (2024, 379 clinicians with data). Median for this group: $70,420. Middle half: $31,824 to $110,420.
Paid by Medicare
A lower Medicare payment amount than 85% of clinicians listed under Internal Medicine in Dover, DE (2024, 30 clinicians with data). Median for this group: $67,762. Middle half: $49,422 to $105,190.
A lower Medicare payment amount than 90% of clinicians listed under Internal Medicine in Delaware (2024, 379 clinicians with data). Median for this group: $54,415. Middle half: $24,740 to $87,023.
44 active clinicians are listed under Internal Medicine with a practice address in Dover, DE (601 in Delaware).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Dover
18.2% of these 44 clinicians have the CMS telehealth indicator.
65.9% of these 44 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 70% from 312 in 2017 to 95 in 2024.
- 2017: 312
- 2018: 36
- 2022: 51
- 2023: 29
- 2024: 95
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Medicare-allowed amount
Medicare-allowed amount decreased 79% from $38,146 in 2017 to $7,997 in 2024.
- 2017: $38,146
- 2018: $4,832
- 2022: $6,497
- 2023: $2,936
- 2024: $7,997
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Paid by Medicare
Paid by Medicare decreased 80% from $30,393 in 2017 to $6,071 in 2024.
- 2017: $30,393
- 2018: $3,840
- 2022: $5,494
- 2023: $2,048
- 2024: $6,071
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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43 | 42 | $175.86 | $87.78 |
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G2211
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
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16 | 16 | $26.25 | $16.08 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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14 | 14 | $267.07 | $126.07 |
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99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
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11 | 11 | $696.36 | $168.10 |
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G0008
Administration of influenza virus vaccine
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11 | 11 | $51.00 | $31.89 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20090720000463
DE
9830241058
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Bayhealth Medical Center, Inc
640 S State St, Dover, DE 199013530
Bayhealth Medical Center, Inc
804 N Dupont Blvd, Milford, DE 199631006
Phone: 3027253557
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine
Doctor of Medicine (M.D.)
Family Medicine
Internal Medicine
Doctor of Medicine (M.D.)
Hospitalist
Doctor of Osteopathic Medicine (D.O.)
Internal Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 640 S STATE ST, DOVER, DE 19901 (Tel: 3027447581)
Registered at 233 WICKERBERRY DR, MIDDLETOWN, DE 197097810
NPI status registered as active in NPPES database
Registered at 4755 OGLETOWN-STANTON RD, ATT DEPT OF MEDICINE, NEWARK, DE 197180001 (Tel: 3027331000)
Registered at 1325 RICHARDS ALY, WILMINGTON, DE 198063230
Recorded as JONATHAN KAUFMANN, D.O.
Internal Medicine (license number reported to NPPES: DE C7-0003467)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Dover
- Dr. Brian Benson, MD
- Dr. Aimen Khan, MD
- Dr. Zulehuma Rather, MD
- Dr. Lawrence Ward, MD
- Dr. Avani Virani, MD
- Dr. Vineet Puri, MD
Mailing Address
233 Wickerberry Dr
Middletown, DE 197097810