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

Dr. Sophia Louise Ambruso, DO

Individual provider Internal Medicine Physician · NPI 1518250174

Dr. Sophia Louise Ambruso, DO practises Nephrology in Littleton, Colorado. Graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 2011, 15 years ago. Practices with St Clair Specialty Physicians PC, a 36-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Colorado, Idaho and Oregon.

Years since qualifying
15
Trained at
Kansas City University of Med & Biosciences, College of Osteo Med
Licensed in
CO, ID, OR
In the registry since
2011
Specialties on file
4
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

3 Blue Grouse Ridge Rd
Littleton, CO 80127-5704
Phone: (208) 422-1314
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 5610 W Gage St Ste A, Boise, ID 83706-1332 — (208) 501-8955

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 9871479 (ID)
Internal Medicine Physician Taxonomy 207R00000X · Licence DR.0055382 (CO)
Nephrology Physician Taxonomy 207RN0300X · Licence DO227185 (OR)
Nephrology Physician Taxonomy 207RN0300X · Licence 9871479 (ID)

Record details

NPI number1518250174
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 16, 2011
Last updated in NPPESOctober 30, 2025
Certification dateOctober 30, 2025

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Medical schoolKANSAS CITY UNIVERSITY OF MED & BIOSCIENCES, COLLEGE OF OSTEO MED
Graduated 2011 (15 years in practice)
Group practice St Clair Specialty Physicians Pc — 36 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $19,550 5 payments
Consulting Fee $3,600 1 payment
Travel and Lodging $960 8 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $542 8 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at St Clair Specialty Physicians PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 36 clinicians in the practice; 12 are shown here.

Other providers in Littleton