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

Dr. Andrew Killen, MD

Individual provider Family Medicine Physician · NPI 1528231552

Dr. Andrew Killen, MD is registered under Family Practice in Stamford, Connecticut. Qualified in 2001, 25 years ago. Practices with St Vincents Urgent Care LLC, a 43-clinician group and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
25
Licensed in
CT
In the registry since
2008
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

90 Morgan St Ste 108
Stamford, CT 06905-5436 Not confirmed with CMS for 11 years — call before visiting
Phone: (203) 359-9997
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 046395 (CT)

Record details

NPI number1528231552
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 10, 2008
Last updated in NPPESSeptember 14, 2015

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Group practice St. Vincents Urgent Care Llc — 43 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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 patients320
Services billed 1,249 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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 Vincents Urgent Care LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 43 clinicians in the practice; 12 are shown here.

Other providers in Stamford