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

Jonathan Siglin, MD

Individual provider Hospitalist Physician · NPI 1710563747

Jonathan Siglin, MD is an Internal Medicine in Boston, Massachusetts. Graduated from University of Maryland School of Medicine in 2021, 5 years ago. Practices with Johns Hopkins University, a 705-clinician group and works from 3 locations. Licensed in Massachusetts and Maryland.

Years since qualifying
5
Trained at
University of Maryland School of Medicine
Licensed in
MA, MD
In the registry since
2021
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

330 Brookline Ave
Boston, MA 02215-5400
Phone: (617) 754-4677
Show map & directions

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

Additional practice locations (2)

  • 55 Fruit St, Boston, MA 02114-2696 — (617) 726-2000
  • 600 N Wolfe St, Baltimore, MD 21287-0005 — (410) 955-5000

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 1017946 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence D0104827 (MD)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1710563747
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 21, 2021
Last updated in NPPESJanuary 12, 2026
Certification dateJanuary 12, 2026
Mailing address330 Brookline Ave, Boston, MA 02215-5400

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MARYLAND SCHOOL OF MEDICINE
Graduated 2021 (5 years in practice)
Group practice Johns Hopkins University — 705 clinicians
Accepts Medicare assignment Not indicated
Practice locations5 on file with Medicare

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