Quick answers
- Does Phillip J. Dietrich accept Medicare assignment?
- Medicare's clinician data says Phillip J. Dietrich may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Phillip J. Dietrich see?
- In 2024, CMS data shows 13 Original Medicare patients and 227 services for Phillip J. Dietrich. This counts Original Medicare only and measures volume, not quality.
- What is Phillip J. Dietrich's NPI number?
- 1255461695. 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 Phillip J. Dietrich, 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 | 13 |
|---|---|
| Services billed to Medicare | 227 |
| Different services or procedures | 1 |
| Participating Medicare provider | No |
| Average age of these patients | 77 |
Most frequent services
- Chiropractic manipulative treatment, 3-4 spinal regions (98941)227 services
Practice locations
Addresses where Phillip J. Dietrich is enrolled with Medicare (CMS data updated October 2, 2026).
- 363 El Camino Real, Suite 105South San Francisco, CA 94080 (650) 291‑0709
Specialties
- Chiropracticprimary
Other chiropractors in South San Francisco
Clinicians with the same Medicare primary specialty in South San Francisco, CA — not a recommendation.
Clinician information
| Credential | CH |
|---|---|
| School | Cleveland Chiropractic College - Los Angeles |
| Graduation year | 1977 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1255461695 |
| 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