Andrea Armstrong, NP
Nurse Practitioner · Houston
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 3
- 1 carrier
- Office
- 1
- Since medical school
- 18 years
- Graduated 2008
Offices
1 location · Tmh Physician Organization · 13 clinicians in this group
Plans that list them
3 plans · 1 carrier
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Andrea Armstrong’s office at (888) 663-6331 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
| 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
$1,865
Medicare paid this office $1,865 for 22 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Short return visit (20+ min) | 18 | $1,254 | $60 |
Who their Medicare patients are
22 Original Medicare patients in 2024. Average age 74 · Health risk score 0.80. At or below the middle of the specialty; the typical nurse practitioner clinician is at 1.42.
Conditions among them: High blood pressure 59%.
The office billed $13,490, Medicare allowed $2,631 and paid $1,865; for 31 services of 6 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 | 22 | 31 | 74 | 0.80 | $13,490 | $1,865 |
| 2018 | 38 | 86 | 55 | 1.51 | $9,676 | $2,593 |
| 2017 | 47 | 109 | 60 | 1.42 | $10,733 | $2,310 |
| 2016 | 53 | 113 | 67 | 1.75 | $11,494 | $3,315 |
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
2018: 1 service
| Short return visit (20+ min) | 21 | $918 | $38 |
2017: 2 services
| Short return visit (20+ min) | 22 | $827 | $29 |
| Short return visit | 17 | $342 | $18 |
2016: 3 services
| Short return visit (20+ min) | 24 | $1,178 | $41 |
| Short return visit | 20 | $553 | $25 |
| New patient visit (15+ min) | 13 | $525 | $40 |
Drugs they prescribed that Part D paid
$5,061
Pharmacies billed $5,061 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
79 generic and fewer than 11 brand-name prescriptions · $5,061 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.
Year by year
| 2024 | 94 | 38 | None | None | $5,061 |
| 2023 | 58 | 23 | 0% (0) | None | $5,579 |
| 2022 | 17 | None | 0% (0) | None | $853 |
| 2021 | 28 | 24 | 0% (0) | None | $361 |
| 2020 | 172 | 41 | None | None | $5,065 |
| 2019 | 321 | 53 | None | None | $30,327 |
| 2018 | 739 | 99 | 0% (0) | None | $57,166 |
| 2017 | 631 | 106 | None | None | $29,157 |
| 2016 | 294 | 86 | 0% (0) | None | $14,444 |
| 2015 | 14 | None | 0% (0) | None | $176 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2020: 5 drugs
| Lantus Solostar | 12 | $1,078 | $90 |
| Pantoprazole | 13 | $197 | $15 |
| Lisinopril | 14 | $137 | $10 |
| Atorvastatin | 11 | $116 | $11 |
| Amlodipine Besylate | 11 | $84 | $8 |
2019: 5 drugs
| Omeprazole | 11 | $140 | $13 |
| Pantoprazole | 13 | $137 | $11 |
| Quetiapine | 14 | $128 | $9 |
| Losartan | 12 | $96 | $8 |
| Amlodipine Besylate | 14 | $65 | $5 |
2018: 23 drugs
| Breo Ellipta | 11 | $4,032 | $367 |
| Diclofenac | 14 | $1,140 | $81 |
| Levothyroxine | 29 | $638 | $22 |
| Gabapentin | 15 | $410 | $27 |
| Olmesartan Medoxomil | 11 | $350 | $32 |
| Esomeprazole Magnesium | 11 | $319 | $29 |
| Topiramate | 17 | $278 | $16 |
| Atorvastatin | 13 | $271 | $21 |
| Amlodipine Besylate | 45 | $194 | $4 |
| Clopidogrel | 14 | $168 | $12 |
| Tizanidine | 14 | $167 | $12 |
| Triamcinolone Acetonide | 14 | $165 | $12 |
| Hydroxyzine | 17 | $156 | $9 |
| Trazodone | 15 | $143 | $10 |
| Prednisone | 12 | $138 | $12 |
| Losartan-Hydrochlorothiazide | 14 | $138 | $10 |
| Sertraline | 18 | $135 | $7 |
| Lisinopril-Hydrochlorothiazide | 12 | $121 | $10 |
| Montelukast | 11 | $120 | $11 |
| Metformin | 15 | $106 | $7 |
| Cyclobenzaprine | 13 | $70 | $5 |
| Lisinopril | 17 | $65 | $4 |
| Meloxicam | 11 | $58 | $5 |
2017: 19 drugs
| Proair Hfa | 11 | $1,292 | $117 |
| Esomeprazole Magnesium | 12 | $740 | $62 |
| Levothyroxine | 39 | $496 | $13 |
| Atorvastatin | 17 | $406 | $24 |
| Lisinopril | 25 | $347 | $14 |
| Amitriptyline | 16 | $207 | $13 |
| Topiramate | 11 | $157 | $14 |
| Clopidogrel | 16 | $138 | $9 |
| Pantoprazole | 11 | $126 | $11 |
| Warfarin | 15 | $125 | $8 |
| Metformin | 17 | $125 | $7 |
| Azithromycin | 13 | $115 | $9 |
| Gabapentin | 12 | $98 | $8 |
| Cyclobenzaprine | 18 | $88 | $5 |
| Citalopram Hbr | 12 | $86 | $7 |
| Amlodipine Besylate | 34 | $85 | $2 |
| Triamcinolone Acetonide | 12 | $79 | $7 |
| Trazodone | 13 | $64 | $5 |
| Prednisone | 14 | $60 | $4 |
2016: 2 drugs
| Azithromycin | 21 | $154 | $7 |
| Meloxicam | 15 | $53 | $4 |
Money from drug and device companies
$45 in 2025
| 2025 | 2 | 2 | None | $45 |
| 2024 | 2 | 3 | None | $276 |
| 2021 | 1 | 2 | None | $21 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| ViiV Healthcare | Apretude | $24 | 1 payment
|
| Pfizer | Abrysvo | $20 | 1 payment
|
See all 2 published payments
| Pfizer | Meals · 2025-10-16 | Abrysvo | $20 |
| ViiV Healthcare | Meals · 2025-10-13 | Apretude | $24 |
See earlier years (2024, 2021)
2024: $276
| ViiV Healthcare | Apretude | $253 | 2 payments
|
| Abbott Laboratories | Freestyle Libre 3 | $23 | 1 payment
|
2021: $21
| Genentech USA | Xofluza | $21 | 2 payments
|
Professional record
- NPI
- 1992038434
- Licence
- CA 95025177, TX 675026
- Video visits
- Lists video visits
- Gender
- Female
More record details
- Sole proprietor
- No
- Taxonomy
- Federal specialty code 363LF0000X (363LF0000X); Federal specialty code 163W00000X (163W00000X)
- Mailing address
- 1 Embarcadero Ctr Ste 1900, San Francisco, CA, 94111
- NPI first listed
- 2009-09-16
- NPI last updated
- 2025-03-17
- NPI record certified
- 2025-03-17
This is when the NPI record was last certified, not a medical board exam.
Extra NPI addresses: 329 Primrose Rd Fl 2, Burlingame, CA, 94010 · 1415 California St, Houston, TX, 77006