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

Christopher Song, MD

Individual provider Internal Medicine Physician · NPI 1184868374

Christopher Song, MD practises Internal Medicine in Greenwich, Connecticut. Qualified in 2009, 17 years ago. Practices with Hospital Medicine Associates LLC, a 207-clinician group and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
17
Licensed in
CT
In the registry since
2009
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

5 Perryridge Rd Medical Education
Greenwich, CT 06830-4608 Not confirmed with CMS for 13 years — call before visiting
Phone: (203) 863-3409
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 50910 (CT)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1184868374
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 1, 2009
Last updated in NPPESFebruary 13, 2013

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Hospital Medicine Associates Llc — 207 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 patients219
Services billed 335 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

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 Hospital Medicine Associates LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 207 clinicians in the practice; 12 are shown here.

Other providers in Greenwich