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

Dr. William Han, MD

Individual provider Hospitalist Physician · NPI 1558325316

Dr. William Han, MD is registered under Pulmonary Disease in Baltimore, Maryland. Graduated from University of Maryland School of Medicine in 1998, 28 years ago. Practices with St Paul Place Specialists, Inc, a 339-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
28
Trained at
University of Maryland School of Medicine
Licensed in
MD
In the registry since
2006
Specialties on file
3
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

2700 Quarry Lake Dr Ste 220
Baltimore, MD 21209-3742 Not confirmed with CMS for 10 years — call before visiting
Phone: (410) 601-9200
Fax: (410) 601-8648
Show map & directions

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

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence D60796 (MD)
Hospitalist Physician Taxonomy 208M00000X · Licence D0060796 (MD)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence D60796 (MD)

Record details

NPI number1558325316
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 17, 2006
Last updated in NPPESOctober 27, 2016

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesCRITICAL CARE (INTENSIVISTS)
Medical schoolUNIVERSITY OF MARYLAND SCHOOL OF MEDICINE
Graduated 1998 (28 years in practice)
Group practice St Paul Place Specialists, Inc. — 339 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 patients140
Services billed 291 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 St Paul Place Specialists, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 339 clinicians in the practice; 12 are shown here.

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