Danielle Chammas, MD
Psychiatry · San Francisco
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 12
- 2 carriers
- Office
- 1
- Since medical school
- 16 years
- University of California, San Francisco School of Medicine, 2010
Offices
1 location · University of California San Francisco · 1,780 clinicians in this group
Plans that list them
12 plans · 2 carriers
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Chammas’s office at (415) 476-1000 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
12 of 12 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 |
| Imperial Courage Plan (HMO) | Imperial Health Plan of California, Inc. | Listed | Sep 1, 2026 |
| Imperial Dynamic Plan (HMO) | Imperial Health Plan of California, Inc. | Listed | Sep 1, 2026 |
| Imperial Senior Value (HMO C-SNP) | Imperial Health Plan of California, Inc. | Listed | Sep 1, 2026 |
Original Medicare doctor bills
$17,013
Medicare paid this office $17,013 for 44 people. Most of that is long return visits and Botox.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Long return visit (40+ min) | 15 | $9,359 | $125 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 28 | $3,898 | $70 |
| Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | 14 | $2,451 | $28 |
Who their Medicare patients are
44 Original Medicare patients in 2024. Average age 62 · Under 65 41% · Women 55% · Also on Medicaid 59% · Health risk score 1.92. Above the middle of the specialty; the typical psychiatry clinician is at 1.35.
Conditions among them: High blood pressure 66% · Depression 57% · Cancer 34% · Diabetes 32%.
The office billed $102,569, Medicare allowed $21,625 and paid $17,013; for 239 services of 11 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 | 44 | 239 | 62 | 1.92 | $102,569 | $17,013 |
| 2023 | 19 | 113 | 72 | 2.47 | $54,920 | $8,869 |
| 2021 | 13 | 65 | 70 | 3.38 | $46,511 | $7,795 |
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: 2 services
| Long return visit (40+ min) | 13 | $5,531 | $126 |
| Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | 14 | $1,556 | $27 |
Drugs they prescribed that Part D paid
$6,008
Pharmacies billed $6,008 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
Opioids were 18% of their Part D prescriptions (20 of 109) in 2024. A higher opioid share than 9 in 10 peers; the typical psychiatry clinician is at 0%.
97 generic and 12 brand-name prescriptions · $6,008 in drug cost.
Part D prescriptions only. The opioid rate is opioid prescriptions as a share of all this clinician's Part D prescriptions; surgeons and pain specialists run higher than others, so it is shown against the same specialty.
| Gabapentin | 19 | $196 | $10 |
| Oxycodone | 12 | $142 | $12 |
Year by year
| 2024 | 109 | None | 18% (20) | 11% | $6,008 |
| 2023 | 69 | 11 | 36% (25) | None | $3,638 |
| 2022 | 59 | None | 51% (30) | None | $3,110 |
| 2021 | 40 | 12 | 53% (21) | None | $4,355 |
| 2019 | 45 | 18 | 42% (19) | None | $2,054 |
| 2014 | 16 | None | None | None | $781 |
| 2013 | 203 | 16 | 0% (0) | 25% | $31,750 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 2 drugs
| Oxycodone | 14 | $793 | $57 |
| Duloxetine | 13 | $79 | $6 |
2022: 2 drugs
| Oxycodone | 13 | $1,254 | $96 |
| Methadone | 12 | $401 | $33 |
2013: 7 drugs
| Abilify | 21 | $17,251 | $821 |
| Quetiapine | 16 | $6,472 | $404 |
| Bupropion Xl | 19 | $1,257 | $66 |
| Lithium Carbonate | 15 | $353 | $24 |
| Lamotrigine | 11 | $180 | $16 |
| Sertraline | 11 | $106 | $10 |
| Fluoxetine | 14 | $74 | $5 |
Money from drug and device companies
$19 in 2023
A payment is not proof that care is biased.
| Boston Scientific | None | $19 | 1 payment
|
See the published payment
| Boston Scientific | Meals · 2023-03-15 | None | $19 |
Checkups this office reported
Medicare did not publish checkup rates for this clinician.
- Medicare’s overall office score
- 75.0 / 100
- Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.
Professional record
- NPI
- 1114245685
- Trained
- University of California, San Francisco School of Medicine, 2010 · 16 years ago
- Video visits
- Lists video visits
- Gender
- Female
More record details
- Sole proprietor
- No
- Taxonomy
- Student in a training program (390200000X)
- Mailing address
- 401 Parnassus Ave, San Francisco, CA, 94143
- NPI first listed
- 2010-05-09
- NPI last updated
- 2011-08-14
This is when the NPI record was last certified, not a medical board exam.