Carmen Rae Ernst, NP
Nurse Practitioner · Sunnyvale
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 1
- 1 carrier
- Office
- 1
Offices
1 location · Sutter Bay Medical Foundation · 3,783 clinicians in this group
Plans that list them
1 plan · 1 carrier
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Carmen Rae Ernst’s office at (408) 739-6000 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
| DualConnect (HMO D-SNP) | Santa Clara Family Health Plan | Listed | Sep 1, 2026 |
Original Medicare doctor bills
$19,013
Medicare paid this office $19,013 for 83 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Long return visit (40+ min) | 50 | $7,475 | $144 |
| Return visit (30+ min) | 41 | $5,570 | $103 |
| Short return visit (20+ min) | 39 | $4,636 | $74 |
| New patient visit (45+ min) | 12 | $954 | $80 |
Who their Medicare patients are
83 Original Medicare patients in 2024. Average age 69 · Women 77% · Also on Medicaid 17% · Health risk score 0.99. At or below the middle of the specialty; the typical nurse practitioner clinician is at 1.42.
Conditions among them: High blood pressure 69% · Diabetes 35% · Depression 28% · Coronary heart disease 24% · Atrial fibrillation 18% · Chronic kidney disease 13%.
The office billed $72,351, Medicare allowed $25,347 and paid $19,013; for 187 services of 7 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.
Drugs they prescribed that Part D paid
$136,823
Pharmacies billed $136,823 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
Opioids were 0% of their Part D prescriptions (0 of 181) in 2024. At or below the middle of the specialty; the typical nurse practitioner clinician is at 0%.
0 generic and 116 brand-name prescriptions · $136,823 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.
| Ozempic | 57 | $65,964 | $1,157 |
| Mounjaro | 39 | $43,665 | $1,120 |
| Wegovy | 19 | $26,259 | $1,382 |
| Metformin Hcl Er | 29 | $339 | $12 |
Money from drug and device companies
$125 in 2025
| 2025 | 1 | 2 | None | $125 |
| 2024 | 1 | 1 | None | $122 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Novo Nordisk | Wegovy | $125 | 2 payments
|
See all 2 published payments
| Novo Nordisk | Meals · 2025-10-02 | None | $92 |
| Novo Nordisk | Education · 2025-08-19 | Wegovy | $32 |
See earlier years (2024)
2024: $122
| Novo Nordisk | Wegovy | $122 | 1 payment
|
Professional record
- NPI
- 1679292015
- Licence
- CA 95022371
- Video visits
- Lists video visits
- Gender
- Female
More record details
- Sole proprietor
- No
- Taxonomy
- Federal specialty code 363LA2200X (363LA2200X)
- Mailing address
- 325 Distel Cir, Los Altos, CA, 94022
- NPI first listed
- 2022-08-26
- NPI last updated
- 2023-05-09
- NPI record certified
- 2023-05-09
This is when the NPI record was last certified, not a medical board exam.