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

John Hopkins Fountain, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1225590383

John Hopkins Fountain, MD is a Pulmonary Disease in Boston, Massachusetts. Qualified in 2019, 7 years ago. Practices with Mount Auburn Professional Services Inc, a 228-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Massachusetts and New York.

Years since qualifying
7
Licensed in
MA, NY
In the registry since
2019
Specialties on file
4
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

55 Fruit St
Boston, MA 02114-2621
Phone: (617) 724-9674
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 15 Parkman St, Boston, MA 02114-3117 — (617) 724-9674
  • 330 Brookline Ave, Boston, MA 02215-5400 — (617) 724-9674
  • 300 Mount Auburn St Ste 419, Cambridge, MA 02138-5665 — (617) 354-8771

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 1019462 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 314912 (NY)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 1019462 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 1019462 (MA)

Record details

NPI number1225590383
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 5, 2019
Last updated in NPPESMay 26, 2026
Certification dateMay 26, 2026

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Mount Auburn Professional Services Inc — 228 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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