Rajany Vidallon Dy, MD
Pulmonary Disease · Palo Alto
- 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
Offices
1 location
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. Dy’s office at (650) 723-4000 to ask if they take your plan before you enroll.
California Medical Board record
Licence A144033 · Current
Licensed to practise in California · since 2016 · expires 2027-10-31 · De La Salle University Health Sciences Campus.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
Original Medicare doctor bills
$2,029
Medicare paid this office $2,029 for 18 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
Who their Medicare patients are
18 Original Medicare patients in 2024. Average age 76 · Health risk score 2.58. Above the middle of the specialty; the typical pulmonary disease clinician is at 2.13.
Conditions among them: High blood pressure 75% · Heart failure 75% · Atrial fibrillation 67%.
The office billed $3,410, Medicare allowed $2,532 and paid $2,029; for 18 services of 3 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 | 18 | 18 | 76 | 2.58 | $3,410 | $2,029 |
| 2023 | 49 | 88 | 73 | 3.03 | $23,319 | $7,950 |
| 2022 | 127 | 227 | 70 | 3.21 | $74,818 | $24,903 |
| 2021 | 144 | 322 | 71 | 2.44 | $99,531 | $34,219 |
| 2020 | 165 | 355 | 69 | 3.29 | $112,791 | $36,185 |
| 2019 | 222 | 459 | 69 | 3.38 | $157,340 | $50,606 |
| 2018 | 122 | 255 | 67 | 2.88 | $70,642 | $23,041 |
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: 1 service
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 13 | $1,203 | $63 |
2022: 4 services
| Critical care, first 30-74 minutes | 33 | $12,137 | $173 |
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 53 | $6,328 | $83 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 17 | $1,107 | $58 |
| Initial hospital care with straightforward or low level of medical decision making, per day at least 40 minutes | 14 | $1,081 | $77 |
2021: 5 services
| Critical care, first 30-74 minutes | 41 | $15,531 | $181 |
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 53 | $7,773 | $84 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 35 | $2,635 | $57 |
| Return visit (30+ min) | 15 | $1,672 | $104 |
| Initial hospital care with straightforward or low level of medical decision making, per day at least 40 minutes | 20 | $1,523 | $76 |
2020: 7 services
| Critical care, first 30-74 minutes | 47 | $15,664 | $182 |
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 62 | $9,014 | $85 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 24 | $2,071 | $59 |
| Initial hospital care with straightforward or low-level medical decision making at least 55 minutes | 18 | $1,806 | $100 |
| Initial hospital care with straightforward or low level of medical decision making, per day at least 40 minutes | 15 | $937 | $62 |
| Short return visit (20+ min) | 13 | $911 | $57 |
| Insertion of artery tube for blood sampling or infusion through skin | 11 | $412 | $37 |
2019: 7 services
| Critical care, first 30-74 minutes | 104 | $30,565 | $176 |
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 56 | $6,327 | $81 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 64 | $5,258 | $55 |
| Initial hospital care with straightforward or low level of medical decision making, per day at least 40 minutes | 23 | $1,645 | $69 |
| Emergent insertion of breathing tube into windpipe using an endoscope | 11 | $1,260 | $115 |
| Initial hospital care with straightforward or low-level medical decision making at least 55 minutes | 11 | $1,201 | $109 |
| Short return visit (20+ min) | 16 | $925 | $58 |
2018: 6 services
| Critical care, first 30-74 minutes | 38 | $9,289 | $172 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 45 | $3,901 | $58 |
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 19 | $2,527 | $82 |
| Initial hospital care with straightforward or low-level medical decision making at least 55 minutes | 16 | $1,749 | $109 |
| Initial hospital care with straightforward or low level of medical decision making, per day at least 40 minutes | 14 | $1,103 | $79 |
| Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes | 17 | $784 | $31 |
Medicaid work
$486 in 2023
Medicaid paid $486 for 27 billed services this clinician did in 2023, up to 21 people in a month for one service.
Medicaid and CHIP claims where this clinician did the service, fee-for-service and managed care together. Any month with fewer than 11 patients is hidden, so small Medicaid practices undercount.
| SBSQ HOSPITAL IP/OBS CARE SF/LOW MDM 25 MINUTES | 27 | $486 |
| 2023 | 27 | 1 | 21 | $486 |
| 2022 | 319 | 5 | 27 | $28,011 |
| 2021 | 487 | 4 | 22 | $52,319 |
| 2020 | 344 | 3 | 26 | $38,636 |
| 2019 | 549 | 4 | 36 | $62,731 |
| 2018 | 18 | 1 | 12 | $3,717 |
See the largest Medicaid services in earlier years
2022
| Critical care, evaluation and management of the critically ill or critically injured patient; first 30-74 minutes | 84 | $15,397 |
| SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES | 182 | $11,885 |
| SBSQ HOSPITAL IP/OBS CARE MOD MDM 35 MINUTES | 19 | $729 |
| Review of all medications by a prescribing practitioner or clinical pharmacist (such as, prescriptions, OTCs, herbal therapies and supplements) documented in the medical record (COA) | 17 | $0 |
| BODY MASS INDEX DOCD | 17 | $0 |
2021
| Critical care, evaluation and management of the critically ill or critically injured patient; first 30-74 minutes | 185 | $32,663 |
| SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES | 249 | $16,680 |
| 1ST HOSP IP/OBS SF/LOW 40 | 26 | $1,951 |
| SBSQ HOSPITAL IP/OBS CARE MOD MDM 35 MINUTES | 27 | $1,026 |
2020
| Critical care, evaluation and management of the critically ill or critically injured patient; first 30-74 minutes | 157 | $28,111 |
| SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES | 162 | $9,554 |
| SBSQ HOSPITAL IP/OBS CARE MOD MDM 35 MINUTES | 25 | $972 |
2019
| Critical care, evaluation and management of the critically ill or critically injured patient; first 30-74 minutes | 264 | $47,135 |
| SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES | 144 | $10,162 |
| SBSQ HOSPITAL IP/OBS CARE MOD MDM 35 MINUTES | 126 | $4,887 |
| Short return visit (20+ min) | 15 | $547 |
2018
| Critical care, evaluation and management of the critically ill or critically injured patient; first 30-74 minutes | 18 | $3,717 |
Drugs they prescribed that Part D paid
$10,954
Pharmacies billed $10,954 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
39 generic and 18 brand-name prescriptions · $10,954 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.
| Eliquis | 11 | $7,295 | $663 |
Year by year
| 2024 | 57 | 15 | None | 32% | $10,954 |
| 2023 | 31 | None | 0% (0) | 58% | $14,802 |
| 2022 | 11 | None | 0% (0) | None | $7,734 |
| 2021 | 14 | None | 0% (0) | None | $4,728 |
| 2020 | 44 | None | 0% (0) | 73% | $11,011 |
| 2019 | 30 | None | 0% (0) | 97% | $93,876 |
| 2018 | 14 | None | 0% (0) | 100% | $38,331 |
| 2015 | 57 | 21 | 0% (0) | 70% | $12,931 |
| 2014 | 581 | 52 | 3% (19) | None | $38,058 |
| 2013 | 786 | 74 | 5% (35) | None | $44,090 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2018: 1 drug
| Ventolin Hfa | 11 | $610 | $55 |
2014: 14 drugs
| Metoprolol | 29 | $1,432 | $49 |
| Levothyroxine | 24 | $234 | $10 |
| Furosemide | 41 | $232 | $6 |
| Metformin | 36 | $190 | $5 |
| Hydralazine | 11 | $187 | $17 |
| Omeprazole | 15 | $182 | $12 |
| Tamsulosin | 13 | $158 | $12 |
| Amlodipine Besylate | 28 | $156 | $6 |
| Pantoprazole | 22 | $154 | $7 |
| Atorvastatin | 15 | $147 | $10 |
| Simvastatin | 21 | $116 | $6 |
| Lisinopril | 23 | $104 | $5 |
| Tramadol | 12 | $104 | $9 |
| Metoprolol | 17 | $78 | $5 |
2013: 21 drugs
| Humulin 70-30 | 12 | $4,307 | $359 |
| Lantus Solostar | 13 | $3,718 | $286 |
| Nexium | 13 | $3,593 | $276 |
| Metoprolol | 22 | $939 | $43 |
| Atorvastatin | 33 | $502 | $15 |
| Amlodipine Besylate | 62 | $355 | $6 |
| Gabapentin | 18 | $280 | $16 |
| Metformin | 42 | $258 | $6 |
| Simvastatin | 31 | $233 | $8 |
| Pantoprazole | 21 | $230 | $11 |
| Levothyroxine | 30 | $220 | $7 |
| Tamsulosin | 17 | $199 | $12 |
| Lisinopril | 30 | $171 | $6 |
| Spironolactone-Hctz | 11 | $170 | $15 |
| Spironolactone | 14 | $167 | $12 |
| Clopidogrel | 13 | $154 | $12 |
| Losartan | 15 | $140 | $9 |
| Hydrochlorothiazide | 21 | $137 | $7 |
| Metoprolol | 22 | $120 | $5 |
| Furosemide | 22 | $89 | $4 |
| Atenolol | 17 | $68 | $4 |
Money from drug and device companies
$851 in 2025
| 2025 | 5 | 23 | $200 | $851 |
| 2024 | 4 | 11 | None | $305 |
| 2022 | 1 | 1 | None | $100 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Actelion Pharmaceuticals US | Uptravi | $308 | 8 payments
|
| Bayer Healthcare Pharmaceuticals | Adempas | $235 | 2 payments
|
| Merck Sharp & Dohme | Winrevair | $205 | 9 payments
|
| United Therapeutics | Remodulin | $71 | 3 payments
|
| Liquidia Technologies | Yutrepia | $32 | 1 payment
|
See all 23 published payments
| Merck Sharp & Dohme | Meals · 2025-12-11 | Winrevair | $21 |
| Liquidia Technologies | Meals · 2025-12-04 | Yutrepia | $32 |
| United Therapeutics | Meals · 2025-11-18 | Remodulin | $22 |
| Actelion Pharmaceuticals US | Meals · 2025-11-06 | Opsumit | $22 |
| Actelion Pharmaceuticals US | Meals · 2025-11-04 | Uptravi | $3 |
| Merck Sharp & Dohme | Meals · 2025-10-16 | Winrevair | $22 |
| Bayer Healthcare Pharmaceuticals | Consulting · 2025-09-30 | Adempas | $200 |
| Merck Sharp & Dohme | Meals · 2025-09-16 | Winrevair | $22 |
| Actelion Pharmaceuticals US | Meals · 2025-08-19 | Uptravi | $25 |
| United Therapeutics | Meals · 2025-08-06 | Remodulin | $21 |
| Actelion Pharmaceuticals US | Meals · 2025-07-22 | Uptravi | $21 |
| Actelion Pharmaceuticals US | Education · 2025-07-22 | Opsumit | $65 |
| Merck Sharp & Dohme | Meals · 2025-07-08 | Winrevair | $21 |
| Actelion Pharmaceuticals US | Meals · 2025-06-23 | Opsumit | $25 |
| Merck Sharp & Dohme | Meals · 2025-06-12 | Winrevair | $23 |
| Actelion Pharmaceuticals US | Meals · 2025-05-08 | Uptravi | $123 |
| Merck Sharp & Dohme | Meals · 2025-04-17 | Winrevair | $23 |
| Merck Sharp & Dohme | Education · 2025-04-11 | Winrevair | $26 |
| Merck Sharp & Dohme | Meals · 2025-03-27 | Winrevair | $27 |
| Merck Sharp & Dohme | Meals · 2025-03-04 | Winrevair | $21 |
| Actelion Pharmaceuticals US | Meals · 2025-02-25 | Opsumit | $23 |
| United Therapeutics | Meals · 2025-02-20 | Tyvaso | $29 |
| Bayer Healthcare Pharmaceuticals | Meals · 2025-02-18 | Adempas | $35 |
See earlier years (2024, 2022)
2024: $305
| United Therapeutics | Remodulin | $99 | 4 payments
|
| Merck Sharp & Dohme | Winrevair | $73 | 4 payments
|
| AstraZeneca Pharmaceuticals LP | None | $72 | 1 payment
|
| Actelion Pharmaceuticals US | Uptravi | $62 | 2 payments
|
2022: $100
| Intuitive Surgical | Da Vinci Surgical System | $100 | 1 payment
|
Professional record
- NPI
- 1316226665
- Licence
- CA A144033, NV 17667California A144033: Current · expires 2027-10-31
More record details
- Sole proprietor
- No
- Taxonomy
- Federal specialty code 207RP1001X (207RP1001X); Internal medicine (207R00000X); Federal specialty code 207RC0200X (207RC0200X); Student in a training program (390200000X)
- Mailing address
- 300 Pasteur Dr, Palo Alto, CA, 94304
- NPI first listed
- 2011-08-04
- NPI last updated
- 2024-04-29
- NPI record certified
- 2024-04-29
This is when the NPI record was last certified, not a medical board exam.
Extra NPI addresses: 1707 W Charleston Blvd Ste 230, Las Vegas, NV, 89102 · 1450 Chapel St, New Haven, CT, 06511