Angela Naa-Dei Martey, DO
Family Practice · Fremont
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- Not verified
- Not the same as out of network.
- Offices
- 2
Offices
2 locations · Sutter Bay Medical Foundation · 3,783 clinicians in this group
Hospitals listed: 057004 · Sutter Delta Medical Center. That is not proof they admit you there this week.
Plan participation
Not verified
We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Dr. Martey’s office to ask if they take your plan before you enroll.
Hospitals they work in
1 hospital
These rate the hospital, not this clinician. Most measures at most hospitals are no different from the national rate.
- Sutter Delta Medical CenterAntioch, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency department · Birthing-friendlyPart of Sutter Health, which runs 27 hospitals in 2 statesPatients rate it 2 of 5 · 60% would definitely recommend itOverall rating: 3 of 5 starsBetter than the national rate — Clostridium Difficile (C.Diff): 0.173, Oct 2024 – Sep 2025
See every measure and the patient survey for Sutter Delta Medical Center
Behind the star rating — Deaths: 0 better, 7 the same, 0 worse of 7 measures. Safety: 1 better, 5 the same, 0 worse of 6 measures. Readmissions: 0 better, 5 the same, 2 worse of 7 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.
| Clostridium Difficile (C.Diff)Infections | 0.173 | Better | Oct 2024 – Sep 2025 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 0.98 (0 to 2.03) · 561 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 0.88 (0.47 to 1.29) | No different | Jul 2022 – Jun 2024 |
| Death rate among surgical inpatients with serious treatable complicationsComplications and deaths | 176.46 (114.75 to 238.17) · 31 cases | No different | Jul 2022 – Jun 2024 |
| Death rate for COPD patientsComplications and deaths | 8.5 · 113 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart attack patientsComplications and deaths | 12 · 100 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart failure patientsComplications and deaths | 9.3 · 260 cases | None | Jul 2022 – Jun 2025 |
| Death rate for pneumonia patientsComplications and deaths | 14.2 · 259 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 12.5 · 56 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 3.8 · 1,274 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.24 (0.02 to 0.46) · 3,285 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.24 (0.04 to 0.45) · 3,374 cases | No different | Jul 2022 – Jun 2024 |
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 3.47 (1.02 to 5.93) · 364 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 2.16 (0.49 to 3.83) · 323 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative respiratory failure rateComplications and deaths | 8.63 (0 to 18.4) · 26 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 1.71 (0.2 to 3.22) · 81 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.24 (0 to 1.07) · 2,713 cases | No different | Jul 2022 – Jun 2024 |
| Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections | 0 | No different | Oct 2024 – Sep 2025 |
| Central Line Associated Bloodstream Infection (ICU + select Wards)Infections | 0 | No different | Oct 2024 – Sep 2025 |
| SSI - Colon SurgeryInfections | 0.962 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 14.1 · 116 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 20 · 316 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for heart attack patientsUnplanned return visits | 20 · 83 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for heart failure patientsUnplanned return visits | 7.1 · 298 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | 27.3 · 269 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 16.4 · 283 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 19.7 · 150 cases | None | Jul 2023 – Jun 2025 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits | 12.9 (9.7 to 17.1) · 529 cases | No different | Jan 2022 – Dec 2024 |
| Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits | 0.9 (0.6 to 1.3) · 45 cases | No different | Jan 2024 – Dec 2024 |
What patients said (610 patients answered, 13% of those asked)
| Cleanliness | 3 |
| Nurse communication | 2 |
| Doctor communication | 2 |
| Communication about medicines | 2 |
| Discharge information | 2 |
| Overall hospital rating | 2 |
| Quietness | 2 |
| Recommend hospital | 2 |
| Room was "always" clean | 70% |
| Nurses "always" communicated well | 70% |
| Doctors "always" communicated well | 72% |
| Staff "always" explained | 53% |
| Yes, staff "did" give patients this information | 83% |
| Yes, staff "did" give patients information about help after discharge | 83% |
| Doctors "always" explained things so they could understand | 67% |
| Doctors "always" listened carefully | 70% |
| Doctors "always" treated them with courtesy and respect | 80% |
| Patients who gave a rating of "9" or "10" (high) | 60% |
| Staff "always" explained new medications | 67% |
| Nurses "always" explained things so they could understand | 64% |
| Nurses "always" listened carefully | 66% |
| Nurses "always" treated them with courtesy and respect | 78% |
| "Always" quiet at night | 44% |
| "YES", patients would definitely recommend the hospital | 60% |
| Staff "always" explained possible side effects | 40% |
| Yes, staff "did" give patients information about possible symptoms | 83% |
Original Medicare doctor bills
$5,815
Medicare paid this office $5,815 for 24 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Short return visit (20+ min) | 13 | $1,747 | $87 |
| Return visit (30+ min) | 11 | $1,592 | $122 |
Who their Medicare patients are
24 Original Medicare patients in 2024. Average age 70 · Health risk score 0.98. At or below the middle of the specialty; the typical family practice clinician is at 1.13.
Conditions among them: High blood pressure 67%.
The office billed $16,036, Medicare allowed $6,814 and paid $5,815; for 70 services of 21 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
$95,672
Pharmacies billed $95,672 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 483) in 2024. At or below the middle of the specialty; the typical family practice clinician is at 2%.
350 generic and fewer than 11 brand-name prescriptions · $95,672 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.
| Synjardy Xr | 44 | $24,969 | $567 |
| Jardiance | 14 | $12,536 | $895 |
| Albuterol Sulfate Hfa | 11 | $392 | $36 |
| Atorvastatin | 57 | $386 | $7 |
| Losartan | 39 | $331 | $8 |
See all 11 drugs
| Synjardy Xr | 44 | $24,969 | $567 |
| Jardiance | 14 | $12,536 | $895 |
| Albuterol Sulfate Hfa | 11 | $392 | $36 |
| Atorvastatin | 57 | $386 | $7 |
| Losartan | 39 | $331 | $8 |
| Diclofenac | 13 | $208 | $16 |
| Tamsulosin | 11 | $193 | $18 |
| Pantoprazole | 14 | $148 | $11 |
| Metoprolol | 12 | $109 | $9 |
| Sertraline | 12 | $108 | $9 |
| Amlodipine Besylate | 27 | $83 | $3 |
Year by year
| 2024 | 483 | 84 | 0% (0) | None | $95,672 |
| 2023 | 279 | 42 | 0% (0) | 18% | $49,238 |
| 2022 | 75 | None | 0% (0) | 29% | $13,922 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 6 drugs
| Synjardy Xr | 15 | $8,413 | $561 |
| Atorvastatin | 35 | $989 | $28 |
| Amlodipine Besylate | 12 | $276 | $23 |
| Metoprolol | 12 | $271 | $23 |
| Losartan | 23 | $239 | $10 |
| Levetiracetam | 11 | $74 | $7 |
2022: 2 drugs
| Atorvastatin | 16 | $305 | $19 |
| Losartan | 11 | $47 | $4 |
Professional record
- NPI
- 1932774346
- Video visits
- Lists video visits
- Gender
- Female
More record details
- Sole proprietor
- No
- Taxonomy
- Family medicine (207Q00000X)
- Mailing address
- Po Box 276950, Sacramento, CA, 95827
- NPI first listed
- 2021-05-26
- NPI last updated
- 2025-03-21
- NPI record certified
- 2025-03-21
This is when the NPI record was last certified, not a medical board exam.
Extra NPI addresses: 500 W Hospital Rd, French Camp, CA, 95231