Dr. Christopher Canfield , DO
Internal Medicine - Nephrology โข Newark, DE
4755 Ogletown-Stanton Rd
Newark, DE 19718
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. Christopher Canfield is listed in NPPES under Internal Medicine - Nephrology.
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NPI assigned on March 21, 2018; this date does not establish years in practice.
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Published CMS data list 619 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99232 โ Subsequent hospital care with moderate levelof medical decision making: 247 service units.
- 90960 โ Dialysis services, 4 or more physician visits per month (20 years or older): 141 service units.
- 99222 โ Initial hospital care with straightforward or low-level medical decision making: 59 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ 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 11 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 428 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Amlodipine Besylate โ 56 prescription fills, including refills.
- Sevelamer Carbonate โ 51 prescription fills, including refills.
- Nifedipine Er (Nifedipine) โ 44 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 17 records in the table ยท Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 85% of clinicians listed under Internal Medicine - Nephrology in Newark, DE (2024, 17 clinicians with data). Median for this group: 3,672. Middle half: 1,322 to 3,999.
Fewer Medicare Part B services than 90% of clinicians listed under Internal Medicine - Nephrology in Delaware (2024, 38 clinicians with data). Median for this group: 2,846. Middle half: 1,371 to 3,981.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 156 in 2023 to 619 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023โ2024.
Practice Location & Contact Primary Location
4755 Ogletown-Stanton Rd
Newark, DE 19718
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 2 distinct additional practice-address records in Philadelphia, PA; Wilmington, DE. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 2 distinct group names: Metropolitan Nephrology Associates Pc; Temple Physicians 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
2018
What Public CMS Data Show
Internal Medicine - Nephrology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
237 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 โ by Provider, 2024.
Medicare-allowed amount
About $103,042 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 โ by Provider and Service, 2024.
Paid by Medicare
About $79,827 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 โ by Provider and Service, 2024.
30-day fills
833 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$61,909 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $1,380.24 across 50 records.
By nature of payment
- Food and Beverage: $1,380.24 across 50 records.
Reporting-company totals (3 largest of 20)
- Novo Nordisk Inc: $225.72 across 7 records.
- Novartis Pharmaceuticals Corporation: $208.98 across 8 records.
- Ardelyx, Inc.: $185.15 across 3 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
8 years (graduated 2018)
CMS Doctors and Clinicians data list 2018 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
2018
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, โDoes your provider accept Medicare as full payment?โ
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. Canfield 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. Canfield 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 Newark and Delaware
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 85% of clinicians listed under Internal Medicine - Nephrology in Newark, DE (2024, 17 clinicians with data). Median for this group: 3,672. Middle half: 1,322 to 3,999.
Fewer Medicare Part B services than 90% of clinicians listed under Internal Medicine - Nephrology in Delaware (2024, 38 clinicians with data). Median for this group: 2,846. Middle half: 1,371 to 3,981.
Medicare-allowed amount
A lower Medicare-allowed amount than 80% of clinicians listed under Internal Medicine - Nephrology in Newark, DE (2024, 17 clinicians with data). Median for this group: $233,255. Middle half: $151,849 to $320,315.
A lower Medicare-allowed amount than 85% of clinicians listed under Internal Medicine - Nephrology in Delaware (2024, 38 clinicians with data). Median for this group: $225,307. Middle half: $168,394 to $316,063.
Paid by Medicare
A lower Medicare payment amount than 80% of clinicians listed under Internal Medicine - Nephrology in Newark, DE (2024, 17 clinicians with data). Median for this group: $180,676. Middle half: $116,220 to $249,891.
A lower Medicare payment amount than 85% of clinicians listed under Internal Medicine - Nephrology in Delaware (2024, 38 clinicians with data). Median for this group: $175,600. Middle half: $132,145 to $245,684.
Medicare Part D prescriptions
Fewer Part D prescriptions than 75% of clinicians listed under Internal Medicine - Nephrology in Newark, DE (2024, 17 clinicians with data). Median for this group: 819. Middle half: 428 to 1,158.
Fewer Part D prescriptions than 75% of clinicians listed under Internal Medicine - Nephrology in Delaware (2024, 40 clinicians with data). Median for this group: 836. Middle half: 471 to 1,139.
Part D drug cost
A lower Part D drug cost than 60% of clinicians listed under Internal Medicine - Nephrology in Newark, DE (2024, 17 clinicians with data). Median for this group: $80,962. Middle half: $53,704 to $266,466.
A lower Part D drug cost than 60% of clinicians listed under Internal Medicine - Nephrology in Delaware (2024, 40 clinicians with data). Median for this group: $141,395. Middle half: $43,047 to $305,235.
22 active clinicians are listed under Internal Medicine - Nephrology with a practice address in Newark, DE (52 in Delaware).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Newark
63.6% of these 22 clinicians have the CMS telehealth indicator.
77.3% of these 22 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 increased 297% from 156 in 2023 to 619 in 2024.
- 2023: 156
- 2024: 619
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Medicare-allowed amount
Medicare-allowed amount increased 257% from $28,883 in 2023 to $103,042 in 2024.
- 2023: $28,883
- 2024: $103,042
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Paid by Medicare
Paid by Medicare increased 249% from $22,904 in 2023 to $79,827 in 2024.
- 2023: $22,904
- 2024: $79,827
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 548% from 66 in 2020 to 428 in 2024.
- 2020: 66
- 2021: 71
- 2022: 13
- 2023: 60
- 2024: 428
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30-day fills
30-day fills increased 733% from 100 in 2020 to 833 in 2024.
- 2020: 100
- 2021: 129
- 2022: 22
- 2023: 90
- 2024: 833
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Part D drug cost
Part D drug cost increased 861% from $6,444 in 2020 to $61,909 in 2024.
- 2020: $6,444
- 2021: $2,073
- 2022: $187
- 2023: $1,184
- 2024: $61,909
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $81.76 in 2019 to $1,380.24 in 2025.
- 2019: $81.76
- 2022: $127.54
- 2023: $813.45
- 2024: $1,002.26
- 2025: $1,380.24
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 โ December 31, 2025): 50 records totaling $1,380.24.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Ardelyx, Inc. |
Food and Beverage
In-kind items and services
|
XPHOZAH 30 MG | General | $117.71 |
| Travere Therapeutics, Inc. |
Food and Beverage
In-kind items and services
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โ | General | $36.61 |
| Calliditas Therapeutics US Inc. |
Food and Beverage
In-kind items and services
|
TARPEYO | General | $35.95 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
โ | General | $35.00 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Ozempic | General | $34.85 |
| Ardelyx, Inc. |
Food and Beverage
In-kind items and services
|
IBSRELA | General | $34.43 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
|
โ | General | $34.35 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
|
Fabhalta | General | $34.26 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Ozempic | General | $33.58 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Ozempic | General | $33.27 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
|
โ | General | $33.19 |
| Ardelyx, Inc. |
Food and Beverage
In-kind items and services
|
IBSRELA | General | $33.01 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
|
Vanrafia | General | $32.68 |
| Calliditas Therapeutics US Inc. |
Food and Beverage
In-kind items and services
|
TARPEYO | General | $32.62 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
|
Fabhalta | General | $32.19 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Rybelsus | General | $31.82 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Rybelsus | General | $31.20 |
| Amgen Inc. |
Food and Beverage
In-kind items and services
|
TAVNEOS | General | $29.22 |
| ANI Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
PURIFIED CORTROPHIN GEL | General | $28.58 |
| KYOWA KIRIN, INC. |
Food and Beverage
In-kind items and services
|
CRYSVITA | General | $27.76 |
| Mallinckrodt Hospital Products Inc. |
Food and Beverage
In-kind items and services
|
ACTHAR | General | $27.12 |
| Amgen Inc. |
Food and Beverage
In-kind items and services
|
TAVNEOS | General | $26.69 |
| Bayer Healthcare Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
Kerendia | General | $26.18 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Ozempic | General | $26.00 |
| Aurinia Pharma U.S., Inc. |
Food and Beverage
In-kind items and services
|
LUPKYNIS | General | $25.94 |
(top 25 shown)
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2022โ2023 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 โ by Provider and Service data, 2023โ2024; 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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99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
|
247 | 125 | $113.08 | $79.46 |
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90960
Dialysis services, 4 or more physician visits per month (20 years or older)
|
141 | 42 | $500.00 | $355.58 |
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99222
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
|
59 | 57 | $243.31 | $131.89 |
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99233
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
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37 | 26 | $147.43 | $119.33 |
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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
|
28 | 22 | $150.00 | $131.53 |
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99496
Transitional care management services for problem of high complexity
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23 | 13 | $300.00 | $285.67 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
|
21 | 16 | $195.00 | $184.46 |
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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
|
19 | 15 | $25.00 | $16.65 |
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90935
Hemodialysis procedure with physician evaluation
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16 | 11 | $148.75 | $70.45 |
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99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
|
16 | 16 | $259.38 | $174.36 |
|
99205
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more
|
12 | 12 | $265.00 | $226.80 |
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.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Amlodipine Besylate | Amlodipine Besylate | 56 | 3,566 | $439.47 | 25 |
| Sevelamer Carbonate | Sevelamer Carbonate | 51 | 2,737 | $9,818.69 | 23 |
| Nifedipine Er | Nifedipine | 44 | 2,640 | $1,610.76 | 18 |
| Losartan Potassium | Losartan Potassium | 39 | 2,610 | $341.85 | 12 |
| Chlorthalidone | Chlorthalidone | 30 | 1,717 | $319.84 | 12 |
| Bumetanide | Bumetanide | 25 | 1,485 | $668.90 | โ |
| Carvedilol | Carvedilol | 23 | 1,770 | $474.72 | 14 |
| Torsemide | Torsemide | 20 | 1,245 | $599.43 | โ |
| Valsartan | Valsartan | 20 | 1,200 | $448.92 | โ |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 20 | 1,110 | $170.18 | โ |
| Furosemide | Furosemide | 18 | 1,253 | $63.59 | โ |
| Farxiga | Dapagliflozin Propanediol | 18 | 540 | $9,749.50 | โ |
| Spironolactone | Spironolactone | 14 | 900 | $78.10 | โ |
| Famotidine | Famotidine | 14 | 480 | $42.29 | โ |
| Velphoro | Sucroferric Oxyhydroxide | 13 | 570 | $35,739.83 | โ |
| Calcium Acetate | Calcium Acetate | 12 | 757 | $819.74 | โ |
| Cefpodoxime Proxetil | Cefpodoxime Proxetil | 11 | 85 | $523.08 | โ |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2023-11-14NUCC Taxonomy Code: 207RN0300X
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NEPHROLOGY
I20230702000038
PA
6507111937
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
Temple Physicians Inc
7500 Central Ave, Philadelphia, PA 191112431
Phone: 2153796444
Metropolitan Nephrology Associates Pc
4453 Castor Ave, Philadelphia, PA 191243846
Phone: 2157442266
Secondary Practice Locations
501 West 14th Street
Wilmington, DE 19899
Phone: 2037336338
7500 Central Ave Ste 107
Philadelphia, PA 191112431
Phone: 2152142973
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physician Assistant
Physician Assistant (Certified)
Emergency Medicine
Doctor of Medicine (M.D.)
Emergency Medicine
Doctor of Medicine (M.D.)
Anesthesiology
Doctor of Medicine (M.D.)
Emergency Medicine
Doctor of Medicine (M.D.)
Nurse Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Internal Medicine (license number reported to NPPES: PA OS022674)
NPI status registered as active in NPPES database
Registered at 4755 OGLETOWN-STANTON RD, NEWARK, DE 19718 (Tel: 2037336338)
Registered at 4755 OGLETOWN-STANTON RD, NEWARK, DE 19718
Recorded as CHRISTOPHER CANFIELD, DO
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine - Nephrology Specialists in Newark
- Dr. James Torain, MD
- Dr. Manthodi Faisal, MD
- Dr. Monarch Shah, MD
- Dr. Carlos Machado, MD
- Dr. Nealanjon Das, DO
- Dr. William Dahms, DO
Mailing Address
4755 Ogletown-Stanton Rd
Newark, DE 19718