Doctor profile · Federal record
Dr. Ronald Greenwald, M.D.
Neurological Surgery Physician (CMS: Neurosurgery) · Mountain View, CA
- NPI 1316954191
- Accepts Medicare
- 47 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
2500 Hospital Dr Bldg 15
Mountain View, CA 940404106
(650) 968-4747
fax (650) 968-8086
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- October 16, 2014
- Year of graduation
- 1979 — 47 yrs since
- Specialty taxonomy
- 207T00000X — NUCC code
- State license (1)
- California #G56400
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1316954191. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
41
Distinct HCPCS
2
Medicare allowed
$9,964
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99205 |
New patient office or other outpatient visit, 60-74 minutes | 27 | 27 | $260 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 14 | 12 | $210 |
In context: peer comparison
Among 2 peers in Mountain View Neurological Surgery Physician, average services per provider: 45. This provider delivers 0.9× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
62
Patients
29
Total drug cost
$685
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Methylprednisolone | Generic | 37 | 29 | $413 |
| Prednisone | Generic | 13 | 0 | $161 |
| Diclofenac Sodium | Generic | 12 | 0 | $111 |
Frequently asked questions
What is Dr. Ronald Greenwald's medical specialty?
Dr. Ronald Greenwald practices Neurological Surgery Physician in Mountain View, CA.
Where does Dr. Ronald Greenwald practice?
Dr. Ronald Greenwald practices at 2500 Hospital Dr Bldg 15, Mountain View, CA 940404106. Office phone: 6509684747.
What is Dr. Ronald Greenwald's NPI?
Dr. Ronald Greenwald's National Provider Identifier (NPI) is 1316954191, issued by NPPES.
Does Dr. Ronald Greenwald accept Medicare assignment?
Yes. Dr. Ronald Greenwald accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ronald Greenwald commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99205); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.