Quick answers
- Does Christiane L. Haeffele accept Medicare assignment?
- Yes. Medicare's clinician data says Christiane L. Haeffele 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 Christiane L. Haeffele see?
- In 2024, CMS data shows 1,167 Original Medicare patients and 1,868 services for Christiane L. Haeffele. This counts Original Medicare only and measures volume, not quality.
- What is Christiane L. Haeffele's NPI number?
- 1477753614. 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 Christiane L. Haeffele, 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 | 1,167 |
|---|---|
| Services billed to Medicare | 1,868 |
| Different services or procedures | 25 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)772 services
- Ultrasound of heart blood flow, valves and chambers, follow-up (93321)170 services
- Ultrasound of heart, follow-up (93308)157 services
- Ultrasound of heart with color-depicted blood flow, rate and valve function (93325)124 services
- Ultrasound of heart blood flow, valves and chambers (93320)119 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 blood pressure75%
- High cholesterol75%
- Ischemic heart disease48%
- Heart failure47%
- Atrial fibrillation44%
- Chronic kidney disease42%
Hospitals where Christiane L. Haeffele works
Medicare's Facility Affiliation Data lists Christiane L. Haeffele at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- El Camino HealthMountain View, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050308
- Stanford Health CareStanford, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050441
- Stanford Health Care Tri-ValleyPleasanton, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050283
Practice locations
Addresses where Christiane L. Haeffele is enrolled with Medicare (CMS data updated October 2, 2026).
- 2585 Samaritan DrSan Jose, CA 95124 (650) 723‑4000
- 300 Pasteur DrStanford, CA 94305 (650) 723‑4000
- 5565 W Las Positas Blvd, Suite 150Pleasanton, CA 94588 (650) 723‑4000
- 5800 Hollis StEmeryville, CA 94608 (510) 806‑2100
Group practices
Medicare enrollment lists Christiane L. Haeffele as a member of this group (CMS data updated October 2, 2026).
- Stanford Health Care3,122 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in California →
Other cardiologists in San Jose
Clinicians with the same Medicare primary specialty in San Jose, CA — not a recommendation.
Other clinicians in Stanford Health Care
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Duke University School Of Medicine |
| Graduation year | 2007 (19 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1477753614 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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