Ronald P Masson, MD
Emergency Medicine · Fresno
- 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
- 14 years
- University of Vermont College of Medicine, 2012
Offices
1 location · Permanente Medical Group Inc · 10,928 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 Dr. Masson’s office at (559) 448-4500 to ask if they take your plan before you enroll.
California Medical Board record
Licence A126419 · Current
Licensed to practise in California · since 2013 · expires 2027-06-30 · University of Vermont College of Medicine.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
School, training and certification
What this clinician told their state board, medical school and everything before it. Only some states publish this, so nothing here means the state does not say, not that there was no training or certification.
Specialty certification
- American Board of Emergency Medicine - Emergency Medicine
Original Medicare doctor bills
$2,178
Medicare paid this office $2,178 for 24 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Emergency department visit with moderate level of medical decision making | 20 | $1,845 | $80 |
Who their Medicare patients are
24 Original Medicare patients in 2024. Average age 70 · Also on Medicaid 50% · Health risk score 2.31. Above the middle of the specialty; the typical emergency medicine clinician is at 2.01.
Conditions among them: High blood pressure 75% · Coronary heart disease 54% · Diabetes 46%.
The office billed $15,981, Medicare allowed $3,086 and paid $2,178; for 27 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 | 24 | 27 | 70 | 2.31 | $15,981 | $2,178 |
| 2023 | 21 | 25 | 70 | 2.28 | $14,229 | $2,481 |
| 2022 | 18 | 20 | 62 | 1.33 | $8,972 | $1,477 |
| 2021 | 36 | 40 | 67 | 2.18 | $17,796 | $3,088 |
| 2020 | 17 | 18 | 64 | 2.77 | $7,464 | $1,377 |
| 2019 | 27 | 28 | 64 | 1.92 | $12,001 | $1,940 |
| 2018 | 362 | 641 | 74 | 2.81 | $383,046 | $54,555 |
| 2017 | 517 | 990 | 72 | 2.43 | $521,489 | $80,459 |
| 2016 | 588 | 1,112 | 73 | 2.59 | $576,104 | $94,587 |
| 2015 | 304 | 566 | 72 | 2.28 | $278,833 | $49,034 |
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
| Emergency department visit with moderate level of medical decision making | 17 | $1,801 | $95 |
2022: 1 service
| Emergency department visit with moderate level of medical decision making | 11 | $1,096 | $91 |
2021: 1 service
| Emergency department visit with moderate level of medical decision making | 29 | $2,565 | $86 |
2020: 1 service
| Emergency department visit with moderate level of medical decision making | 16 | $1,271 | $79 |
2019: 1 service
| Emergency department visit with moderate level of medical decision making | 22 | $1,686 | $77 |
2018: 4 services
| Emergency department visit with high level of medical decision making | 222 | $30,156 | $135 |
| Critical care, first 30-74 minutes | 85 | $15,247 | $173 |
| Emergency department visit with moderate level of medical decision making | 35 | $3,018 | $86 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 233 | $1,650 | $7 |
2017: 6 services
| Emergency department visit with high level of medical decision making | 349 | $50,071 | $134 |
| Critical care, first 30-74 minutes | 88 | $16,375 | $178 |
| Emergency department visit with moderate level of medical decision making | 76 | $6,903 | $90 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 354 | $2,668 | $7 |
| Insertion of non-tunneled central venous tube for infusion (5 years or older) | 15 | $1,469 | $98 |
| Emergency department visit with low level of medical decision making | 13 | $544 | $42 |
2016: 7 services
| Emergency department visit with high level of medical decision making | 413 | $62,871 | $137 |
| Critical care, first 30-74 minutes | 74 | $14,588 | $180 |
| Emergency department visit with moderate level of medical decision making | 82 | $7,594 | $90 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 365 | $2,805 | $7 |
| Insertion of non-tunneled central venous tube for infusion (5 years or older) | 11 | $1,086 | $99 |
| Emergent insertion of breathing tube into windpipe using an endoscope | 11 | $980 | $89 |
| Emergency department visit with low level of medical decision making | 17 | $768 | $45 |
2015: 5 services
| Emergency department visit with high level of medical decision making | 199 | $29,144 | $139 |
| Critical care, first 30-74 minutes | 45 | $8,156 | $181 |
| Emergency department visit with moderate level of medical decision making | 39 | $3,788 | $95 |
| Initial hospital observation care per day, typically 70 minutes | 21 | $3,180 | $151 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 183 | $1,423 | $7 |
Medicaid work
$39,219 in 2024
Medicaid paid $39,219 for 165 billed services this clinician did in 2024, up to 28 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.
| EMERGENCY DEPT VISIT MOD MDM | 165 | $39,219 |
| 2024 | 165 | 1 | 28 | $39,219 |
| 2018 | 2,325 | 10 | 115 | $180,793 |
See the largest Medicaid services in earlier years
2018
| EMERGENCY DEPT VISIT MOD MDM | 650 | $70,319 |
| EMERGENCY DEPARTMENT VISIT HIGH MDM | 456 | $57,446 |
| EMERGENCY DEPT VISIT LOW MDM | 498 | $29,916 |
| EMERGENCY DEPARTMENT VISIT MAY NOT REQ PHYS/QHP | 148 | $10,263 |
| Critical care, evaluation and management of the critically ill or critically injured patient; first 30-74 minutes | 66 | $8,131 |
| Electrocardiogram, routine ECG with at least 12 leads; interpretation and report only | 302 | $2,012 |
| COMPREHENSIVE METABOLIC PANEL | 104 | $1,104 |
| Drug test(s), presumptive, any number of drug classes, any number of devices or procedures; by instrument chemistry analyzers (eg, utilizing immunoassay [eg, EIA, ELISA, EMIT, FPIA, IA, KIMS, RIA]), chromatography (eg, GC, HPLC), and mass spectrometry either with or without chromatography, (eg, DART, DESI, GC-MS, GC-MS/MS, LC-MS, LC-MS/MS, LDTD, MALDI, TOF) includes sample validation when performed, per date of service | 12 | $964 |
| Blood count; complete (CBC), automated (Hgb, Hct, RBC, WBC and platelet count) and automated differential WBC count | 77 | $580 |
| PROTHROMBIN TIME | 12 | $57 |
Drugs they prescribed that Part D paid
$2,829
Pharmacies billed $2,829 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
Opioids were 18% of their Part D prescriptions (33 of 186) in 2024. Above the middle of the specialty; the typical emergency medicine clinician is at 12%.
174 generic and 12 brand-name prescriptions · $2,829 in drug cost · 58 antibiotic prescriptions to 47 people.
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.
| Cefpodoxime Proxetil | 11 | $413 | $38 |
| Ondansetron Odt | 18 | $119 | $7 |
| Hydrocodone-Acetaminophen | 15 | $108 | $7 |
| Fenofibrate | 11 | $84 | $8 |
| Oxycodone | 12 | $68 | $6 |
Year by year
| 2024 | 186 | 119 | 18% (33) | 6% | $2,829 |
| 2023 | 203 | 130 | 13% (27) | None | $2,659 |
| 2022 | 201 | 144 | 22% (45) | 5% | $4,115 |
| 2021 | 223 | 147 | 23% (52) | 5% | $3,911 |
| 2020 | 255 | 160 | 23% (59) | 8% | $4,453 |
| 2019 | 289 | 199 | 19% (55) | 10% | $4,759 |
| 2018 | 110 | 76 | 20% (22) | None | $2,804 |
| 2017 | 85 | 61 | 18% (15) | None | $1,275 |
| 2016 | 137 | 92 | 20% (27) | None | $1,875 |
| 2015 | 85 | 54 | 22% (19) | None | $1,917 |
| 2014 | 24 | 20 | None | None | $525 |
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
| Cefpodoxime Proxetil | 18 | $612 | $34 |
| Ondansetron Odt | 22 | $154 | $7 |
| Prednisone | 14 | $100 | $7 |
| Pantoprazole | 14 | $98 | $7 |
| Cephalexin | 11 | $95 | $9 |
| Oxycodone | 13 | $85 | $7 |
2022: 7 drugs
| Cefpodoxime Proxetil | 13 | $419 | $32 |
| Hydrocodone-Acetaminophen | 26 | $184 | $7 |
| Amoxicillin-Clavulanate Potass | 12 | $171 | $14 |
| Ondansetron Odt | 18 | $131 | $7 |
| Cefadroxil | 11 | $111 | $10 |
| Prednisone | 12 | $81 | $7 |
| Oxycodone | 11 | $69 | $6 |
2021: 6 drugs
| Cefpodoxime Proxetil | 19 | $663 | $35 |
| Ondansetron Odt | 31 | $238 | $8 |
| Hydrocodone-Acetaminophen | 29 | $216 | $7 |
| Amoxicillin-Clavulanate Potass | 11 | $180 | $16 |
| Cephalexin | 13 | $117 | $9 |
| Oxycodone | 14 | $93 | $7 |
2020: 7 drugs
| Cefpodoxime Proxetil | 14 | $426 | $30 |
| Hydrocodone-Acetaminophen | 37 | $288 | $8 |
| Ondansetron Odt | 23 | $233 | $10 |
| Amoxicillin-Clavulanate Potass | 12 | $225 | $19 |
| Cephalexin | 16 | $142 | $9 |
| Ibuprofen | 14 | $114 | $8 |
| Prednisone | 13 | $94 | $7 |
2019: 8 drugs
| Ventolin Hfa | 11 | $530 | $48 |
| Ondansetron Odt | 31 | $418 | $13 |
| Cefpodoxime Proxetil | 11 | $393 | $36 |
| Amoxicillin-Clavulanate Potass | 18 | $309 | $17 |
| Hydrocodone-Acetaminophen | 45 | $280 | $6 |
| Cephalexin | 17 | $153 | $9 |
| Prednisone | 19 | $152 | $8 |
| Azithromycin | 13 | $93 | $7 |
2018: 1 drug
| Hydrocodone-Acetaminophen | 19 | $90 | $5 |
2017: 2 drugs
| Cephalexin | 11 | $76 | $7 |
| Hydrocodone-Acetaminophen | 11 | $52 | $5 |
2016: 2 drugs
| Hydrocodone-Acetaminophen | 17 | $98 | $6 |
| Prednisone | 12 | $49 | $4 |
2015: 1 drug
| Hydrocodone-Acetaminophen | 15 | $90 | $6 |
Professional record
- NPI
- 1568738904
- Licence
- CA A126419California A126419: Current · expires 2027-06-30
- Trained
- University of Vermont College of Medicine, 2012 · 14 years ago
- Gender
- Male
More record details
- Sole proprietor
- No
- Taxonomy
- Federal specialty code 207P00000X (207P00000X)
- Mailing address
- 300 Pasteur Dr, Stanford, CA, 94305
- NPI first listed
- 2012-03-30
- NPI last updated
- 2021-12-17
This is when the NPI record was last certified, not a medical board exam.
This office lists an electronic records connection.