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

Mark Liu, MD

Individual provider Clinical & Laboratory Immunology (Internal Medicine) Physician · NPI 1790721488

Mark Liu, MD is a Pulmonary Disease in Baltimore, Maryland. Graduated from University of Maryland School of Medicine in 1975, 51 years ago. Practices with Johns Hopkins University, a 2,855-clinician group and offers telehealth. Licensed in Maryland.

Years since qualifying
51
Trained at
University of Maryland School of Medicine
Licensed in
MD
In the registry since
2006
Specialties on file
2
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

5501 Hopkins Bayview Cir
Baltimore, MD 21224-6821
Phone: (410) 550-5864
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence D21394 (MD)
Clinical & Laboratory Immunology (Internal Medicine) Physician Taxonomy 207RI0001X · Licence D21394 (MD)

Record details

NPI number1790721488
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 21, 2006
Last updated in NPPESJanuary 27, 2010

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesALLERGY/IMMUNOLOGY, INTERNAL MEDICINE
Medical schoolUNIVERSITY OF MARYLAND SCHOOL OF MEDICINE
Graduated 1975 (51 years in practice)
Group practice Johns Hopkins University — 2855 clinicians
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services
Practice locations6 on file with Medicare

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