Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Adam Douglas Nadler, MD

Individual provider Internal Medicine Physician · NPI 1255793972

Adam Douglas Nadler, MD is a Hospitalist in Baltimore, Maryland. Graduated from University of California, San Francisco School of Medicine in 2016, 10 years ago. Practices with Johns Hopkins University, a 705-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
10
Trained at
University of California, San Francisco School of Medicine
Licensed in
MD
In the registry since
2016
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

4940 Eastern Ave
Baltimore, MD 21224-2735
Phone: (410) 550-0535
Fax: (410) 550-0491
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence D87424 (MD)

Record details

NPI number1255793972
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 22, 2016
Last updated in NPPESMarch 31, 2023
Certification dateMarch 31, 2023

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Medical schoolUNIVERSITY OF CALIFORNIA, SAN FRANCISCO SCHOOL OF MEDICINE
Graduated 2016 (10 years in practice)
Group practice Johns Hopkins University — 705 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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 patients206
Services billed 646 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Johns Hopkins University

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 705 clinicians in the practice; 12 are shown here.

Other providers in Baltimore