Quick answers
- Does Nick G. Costouros accept Medicare assignment?
- Yes. Medicare's clinician data says Nick G. Costouros accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Nick G. Costouros see?
- In 2024, CMS data shows 2,951 Original Medicare patients and 33,224 services for Nick G. Costouros. This counts Original Medicare only and measures volume, not quality.
- What is Nick G. Costouros's NPI number?
- 1578680724. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Nick G. Costouros, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 2,951 |
|---|---|
| Services billed to Medicare | 33,224 |
| Different services or procedures | 182 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)17,700 services
- Injection, gadobutrol, 0.1 ml (A9585)8,681 services
- Dxa bone density measurement of hip, pelvis, spine (77080)1,241 services
- Gallium ga-68, dotatate, diagnostic, 0.1 millicurie (A9587)688 services
- Piflufolastat f-18, diagnostic, 1 millicurie (A9595)397 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol71%
- High blood pressure56%
- Arthritis42%
- Osteoporosis34%
- Ischemic heart disease21%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)20%
Practice locations
Addresses where Nick G. Costouros is enrolled with Medicare (CMS data updated October 2, 2026).
- 795 El Camino RealPalo Alto, CA 94301 (415) 600‑1020
Group practices
Medicare enrollment lists Nick G. Costouros as a member of this group (CMS data updated October 2, 2026).
- Sutter Bay Medical Foundation3,829 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
- Nuclear Medicinealso
Other radiologists in Palo Alto
Clinicians with the same Medicare primary specialty in Palo Alto, CA — not a recommendation.
Other clinicians in Sutter Bay Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Francisco School Of Medicine |
| Graduation year | 2003 (23 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578680724 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians