Doctor profile · Federal record
Dr. Ronald Masson, M.D.
Emergency Medicine Physician (CMS: Emergency Medicine) · Stanford, CA
- NPI 1568738904
- Accepts Medicare
- 14 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
300 Pasteur Dr
Stanford, CA 943052200
(650) 723-9215
Credentials & registration
- NPI registered
- March 2012 — 14 yrs on file
- Profile last updated
- December 17, 2021
- Year of graduation
- 2012 — 14 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #A126419
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1568738904. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
19
Distinct HCPCS
1
Medicare allowed
$2,261
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99284 |
Emergency department visit with moderate level of medical decision making | 19 | 17 | $119 |
In context: peer comparison
Among 60 peers in Stanford Emergency Medicine Physician, average services per provider: 60. This provider delivers 0.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
92
Patients
90
Total drug cost
$1,145
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ondansetron Odt (Ondansetron) | Brand | 22 | 22 | $154 |
| Cefpodoxime Proxetil | Generic | 18 | 17 | $612 |
| Pantoprazole Sodium | Generic | 14 | 14 | $98 |
| Prednisone | Generic | 14 | 13 | $100 |
| Oxycodone Hcl | Generic | 13 | 13 | $85 |
| Cephalexin | Generic | 11 | 11 | $95 |
Frequently asked questions
What is Dr. Ronald Masson's medical specialty?
Dr. Ronald Masson practices Emergency Medicine Physician in Stanford, CA.
Where does Dr. Ronald Masson practice?
Dr. Ronald Masson practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507239215.
What is Dr. Ronald Masson's NPI?
Dr. Ronald Masson's National Provider Identifier (NPI) is 1568738904, issued by NPPES.
Does Dr. Ronald Masson accept Medicare assignment?
Yes. Dr. Ronald Masson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ronald Masson commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.