Karen Elizabeth Mcnamara, NP
Nurse Practitioner · Stanford
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- Not verified
- Not the same as out of network.
- Office
- 1
- Since medical school
- 25 years
- Graduated 2001
Offices
1 location · Stanford Health Care · 3,152 clinicians in this group
Plan participation
Not verified
We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Karen Elizabeth Mcnamara’s office at (650) 723-4000 to ask if they take your plan before you enroll.
Drugs they prescribed that Part D paid
$2,008
Pharmacies billed $2,008 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 28) in 2024. Too few prescriptions to judge: with under about 50 a year, a handful of patients can swing this share.
28 generic and 0 brand-name prescriptions · $2,008 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.
| Estradiol | 14 | $1,581 | $113 |
Year by year
| 2024 | 28 | 11 | 0% (0) | 0% | $2,008 |
| 2023 | 86 | 29 | 0% (0) | None | $7,682 |
| 2022 | 107 | 48 | 0% (0) | 15% | $9,063 |
| 2021 | 149 | 49 | None | 22% | $16,157 |
| 2020 | 121 | 54 | 0% (0) | 12% | $11,698 |
| 2019 | 162 | 58 | 0% (0) | 9% | $12,951 |
| 2018 | 251 | 72 | 0% (0) | 12% | $16,539 |
| 2017 | 242 | 61 | 0% (0) | 14% | $18,338 |
| 2016 | 314 | 75 | None | 18% | $17,024 |
| 2015 | 170 | 53 | 0% (0) | 16% | $14,114 |
| 2014 | 230 | 67 | 0% (0) | 25% | $19,176 |
| 2013 | 184 | 58 | None | 34% | $19,065 |
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
| Estradiol | 25 | $2,490 | $100 |
| Levonorgestrel-Eth Estradiol | 11 | $391 | $36 |
2022: 2 drugs
| Estradiol | 20 | $1,324 | $66 |
| Triamcinolone Acetonide | 12 | $42 | $4 |
2021: 5 drugs
| Estradiol | 28 | $3,161 | $113 |
| Imvexxy | 11 | $2,257 | $205 |
| Medroxyprogesterone Acetate | 11 | $168 | $15 |
| Nystatin | 11 | $164 | $15 |
| Triamcinolone Acetonide | 14 | $44 | $3 |
2020: 3 drugs
| Estradiol | 19 | $2,952 | $155 |
| Nystatin | 14 | $161 | $12 |
| Triamcinolone Acetonide | 13 | $51 | $4 |
2019: 4 drugs
| Estradiol | 36 | $6,207 | $172 |
| Valacyclovir | 15 | $435 | $29 |
| Nystatin | 20 | $227 | $11 |
| Triamcinolone Acetonide | 23 | $160 | $7 |
2018: 7 drugs
| Estradiol | 19 | $2,643 | $139 |
| Yuvafem | 19 | $2,232 | $117 |
| Vivelle-Dot | 15 | $1,987 | $132 |
| Valacyclovir | 24 | $753 | $31 |
| Nystatin | 19 | $208 | $11 |
| Triamcinolone Acetonide | 25 | $129 | $5 |
| Sprintec | 14 | $98 | $7 |
2017: 6 drugs
| Estrace | 15 | $4,830 | $322 |
| Vivelle-Dot | 13 | $1,561 | $120 |
| Nystatin | 29 | $284 | $10 |
| Triamcinolone Acetonide | 34 | $164 | $5 |
| Estradiol | 15 | $104 | $7 |
| Hydrochlorothiazide | 12 | $22 | $2 |
2016: 9 drugs
| Estrace | 11 | $2,884 | $262 |
| Sumatriptan | 22 | $2,274 | $103 |
| Nystatin-Triamcinolone | 11 | $886 | $81 |
| Estradiol | 22 | $207 | $9 |
| Nystatin | 18 | $176 | $10 |
| Clonazepam | 17 | $93 | $5 |
| Triamcinolone Acetonide | 19 | $80 | $4 |
| Cyclobenzaprine | 14 | $55 | $4 |
| Hydrochlorothiazide | 12 | $24 | $2 |
2015: 5 drugs
| Estrace | 13 | $2,957 | $227 |
| Nystatin-Triamcinolone | 23 | $2,276 | $99 |
| Vagifem | 11 | $1,927 | $175 |
| Fluconazole | 14 | $166 | $12 |
| Estradiol | 25 | $153 | $6 |
2014: 5 drugs
| Nystatin-Triamcinolone | 32 | $2,793 | $87 |
| Premarin | 22 | $2,650 | $120 |
| Valacyclovir | 16 | $730 | $46 |
| Estradiol | 47 | $419 | $9 |
| Fluconazole | 15 | $163 | $11 |
2013: 6 drugs
| Evista | 20 | $7,320 | $366 |
| Estrace | 12 | $1,826 | $152 |
| Nystatin-Triamcinolone | 17 | $1,563 | $92 |
| Premarin | 17 | $1,539 | $91 |
| Divigel | 14 | $1,521 | $109 |
| Estradiol | 39 | $673 | $17 |
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
- 1245370840
- Licence
- CA 95004412, VA 0024165166
- Group
- Stanford Health Care
- Gender
- Female
More record details
- Sole proprietor
- Yes
- Taxonomy
- Nurse practitioner (363L00000X); Federal specialty code 363LF0000X (363LF0000X)
- Mailing address
- 300 Pasteur Dr, Stanford, CA, 94305
- NPI first listed
- 2007-02-06
- NPI last updated
- 2026-06-09
- NPI record certified
- 2026-06-09
This is when the NPI record was last certified, not a medical board exam.
Extra NPI addresses: 1012 Torney Ave, San Francisco, CA, 94129 · 3855 S Lake Creek Dr, Wilson, WY, 83014