Quick answers
- Does Darren C. Tiet accept Medicare assignment?
- Yes. Medicare's clinician data says Darren C. Tiet 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 Darren C. Tiet see?
- In 2024, CMS data shows 16 Original Medicare patients and 26 services for Darren C. Tiet. This counts Original Medicare only and measures volume, not quality.
- What is Darren C. Tiet's NPI number?
- 1518541218. 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 Darren C. Tiet, 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 | 16 |
|---|---|
| Services billed to Medicare | 26 |
| Different services or procedures | 11 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Hospitals where Darren C. Tiet works
Medicare's Facility Affiliation Data lists Darren C. Tiet 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.
- Kaiser Foundation Hospital - South San FranciscoSouth San Francisco, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050070
Practice locations
Addresses where Darren C. Tiet is enrolled with Medicare (CMS data updated October 2, 2026).
- 395 Hickey BlvdDaly City, CA 94015 (650) 301‑5860
Group practices
Medicare enrollment lists Darren C. Tiet as a member of this group (CMS data updated October 2, 2026).
- Permanente Medical Group Inc10,996 clinicians in the group
Specialties
Find other Osteopathic Manipulative Medicine doctors in California →
Other osteopathic manipulative medicine doctors in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
- Lindsay E. Cassey, DO
- Elizabeth R. Jensen, DO
- Jesus Sanchez, DO
- Bryan F. Hawkins, DO
- Steven L. Ellis, DO
- Artemio Perez, DO
- Helen T. Tran, MD
- Philip Delgado, DO
All osteopathic manipulative medicine doctors in California →
Other clinicians in Permanente Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2021 (5 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518541218 |
| 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