Ryan Thomas Ash, MD, PHD
Psychiatry · Palo Alto
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 13
- 2 carriers
- Office
- 1
Offices
1 location
Plans that list them
13 plans · 2 carriers
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Ash’s office at (650) 723-4000 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
13 of 13 plans
| Alignment Health BreathEasy (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Clarity (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Harmony (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes CalPlus (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes Care (HMO C-SNP) | Alignment Health Plan | Listed | Sep 28, 2026 |
| Alignment Health Heart & Diabetes Choice (HMO C-SNP) | Alignment Health Plan | Listed | Sep 28, 2026 |
| Alignment Health Honor+ Plan (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health My Choice CalCare (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| SCAN Balance (HMO C-SNP) | SCAN Health Plan | Listed | Oct 3, 2026 |
| SCAN Classic (HMO) | SCAN Health Plan | Listed | Oct 3, 2026 |
| SCAN MyChoice (HMO) | SCAN Health Plan | Listed | Oct 3, 2026 |
| SCAN Strive (HMO C-SNP) | SCAN Health Plan | Listed | Oct 3, 2026 |
California Medical Board record
Licence A165366 · Current
Licensed to practise in California · since 2019 · expires 2027-09-30 · Baylor College of Medicine.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
Original Medicare doctor bills
$8,941
Medicare paid this office $8,941 for 17 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
Who their Medicare patients are
17 Original Medicare patients in 2024. Average age 62 · Health risk score 1.20. At or below the middle of the specialty; the typical psychiatry clinician is at 1.35.
Conditions among them: Depression 75%.
The office billed $33,788, Medicare allowed $11,540 and paid $8,941; for 90 services of 6 kinds.
Original Medicare patients only. A risk score of 1.0 is the average Medicare patient; higher means sicker. Any count under 11 is hidden.
Year by year
| 2024 | 17 | 90 | 62 | 1.20 | $33,788 | $8,941 |
| 2023 | 13 | 42 | 68 | 1.25 | $14,562 | $3,816 |
Original Medicare only. A service billed for fewer than 11 people in a year is hidden, so the lines can add up to less than the year's total.
See the services billed each year
2023: 1 service
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 12 | $2,342 | $102 |
Checkups this office reported
Medicare did not publish checkup rates for this clinician.
- Medicare’s overall office score
- 76.5 / 100
- Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.
Professional record
- NPI
- 1023514411
- Licence
- CA A165366California A165366: Current · expires 2027-09-30
More record details
- Sole proprietor
- No
- Taxonomy
- Psychiatry (2084P0800X)
- Mailing address
- 300 Pasteur Dr, Palo Alto, CA, 94304
- NPI first listed
- 2018-04-04
- NPI last updated
- 2025-10-18
- NPI record certified
- 2025-10-18
This is when the NPI record was last certified, not a medical board exam.
Extra NPI addresses: 37332 Diamond Oaks Dr, Magnolia, TX, 77355 · 675 18th St, San Francisco, CA, 94143