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Danielle Chammas, MD

Psychiatry · San Francisco

NPI 1114245685

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

Looking this up.

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

Plans whose provider directory lists this clinician
Alignment Health BreathEasy (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Clarity (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Harmony (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes CalPlus (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes Care (HMO C-SNP)Alignment Health PlanListedSep 28, 2026
Alignment Health Heart & Diabetes Choice (HMO C-SNP)Alignment Health PlanListedSep 28, 2026
Alignment Health Honor+ Plan (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health My Choice CalCare (HMO)Alignment Health PlanListedOct 3, 2026
Imperial Courage Plan (HMO)Imperial Health Plan of California, Inc.ListedSep 1, 2026
Imperial Dynamic Plan (HMO)Imperial Health Plan of California, Inc.ListedSep 1, 2026
Imperial Senior Value (HMO C-SNP)Imperial Health Plan of California, Inc.ListedSep 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.

Largest Original Medicare bills
Long return visit (40+ min)15$9,359$125
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes28$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 or14$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

Original Medicare by year
202444239621.92$102,569$17,013
202319113722.47$54,920$8,869
20211365703.38$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

Original Medicare services billed in 2023
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 or14$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.

Largest Part D drug costs
Gabapentin19$196$10
Oxycodone12$142$12

Year by year

Part D prescribing by year
2024109None18% (20)11%$6,008
2023691136% (25)None$3,638
202259None51% (30)None$3,110
2021401253% (21)None$4,355
2019451842% (19)None$2,054
201416NoneNoneNone$781
2013203160% (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

Part D drugs prescribed in 2023
Oxycodone14$793$57
Duloxetine13$79$6

2022: 2 drugs

Part D drugs prescribed in 2022
Oxycodone13$1,254$96
Methadone12$401$33

2013: 7 drugs

Part D drugs prescribed in 2013
Abilify21$17,251$821
Quetiapine16$6,472$404
Bupropion Xl19$1,257$66
Lithium Carbonate15$353$24
Lamotrigine11$180$16
Sertraline11$106$10
Fluoxetine14$74$5

Money from drug and device companies

$19 in 2023

A payment is not proof that care is biased.

Payments by company
Boston ScientificNone$19
1 payment
  • Meals · 2023-03-15 · $19
See the published payment
Every published payment
Boston ScientificMeals · 2023-03-15None$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.