Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Willard Nathan Applefeld, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1992190045

Dr. Willard Nathan Applefeld, MD is registered under Cardiovascular Disease (Cardiology) in Baltimore, Maryland. Graduated from University of Maryland School of Medicine in 2015, 11 years ago. Practices with Duke Health Integrated Practice Inc, a 3,094-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
11
Trained at
University of Maryland School of Medicine
Licensed in
MD
In the registry since
2015
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1800 Orleans St The Johns Hopkins Hospital
Baltimore, MD 21287-0010
Phone: (410) 955-7911
Fax: (410) 955-0374
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence D0088336 (MD)

Record details

NPI number1992190045
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 4, 2015
Last updated in NPPESApril 27, 2020
Certification dateApril 27, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolUNIVERSITY OF MARYLAND SCHOOL OF MEDICINE
Graduated 2015 (11 years in practice)
Group practice Duke Health Integrated Practice Inc — 3094 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients53
Services billed 134 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Travel and Lodging $1,351 5 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $773 13 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Duke Health Integrated Practice Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3094 clinicians in the practice; 12 are shown here.

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