Doctor profile · Federal record
Dr. Gonzalo Obnial, M.D.
Vascular Surgery Physician (CMS: Vascular Surgery) · Surgery Physician · Walnut Creek, CA
- NPI 1497909931
- Accepts Medicare
- MIPS 86.0 / 100 · 2023
- 26 yrs in practice
- Licensed in 2 states
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
2637 Shadelands Dr
Walnut Creek, CA 945982512
(925) 932-6330
fax (925) 932-0139 - Additional location
-
350 30Th St Ste 210
Oakland, CA 946093425
(510) 832-6131
fax (510) 832-6169
Credentials & registration
- NPI registered
- November 2008 — 18 yrs on file
- Profile last updated
- February 28, 2025
- Year of graduation
- 2000 — 26 yrs since
- Specialty taxonomy
- 2086S0129X — NUCC code
- State licenses (2)
- California #A112342 · Michigan #4301091346
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1497909931. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
6,324
Distinct HCPCS
10
Medicare allowed
$920,505
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
Q9967 |
Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 4,201 | 61 | $0 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 332 | 243 | $109 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 298 | 215 | $153 | |
93925 |
Ultrasound of leg arteries or artery grafts | 288 | 232 | $321 | |
93922 |
Ultrasound study of arm and leg arteries | 253 | 202 | $94 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 163 | 163 | $134 | |
93990 |
Ultrasound of hemodialysis access | 120 | 62 | $167 | |
93970 |
Ultrasound study of arm or leg veins with compression and maneuvers | 119 | 116 | $242 | |
93880 |
Ultrasound of both sides of head and neck blood flow | 85 | 74 | $237 | |
76937 |
Ultrasonic guidance for blood vessel access | 80 | 64 | $49 |
In context: peer comparison
Among 4 peers in Walnut Creek Vascular Surgery Physician, average services per provider: 531. This provider delivers 12× the peer median.Open Payments
Industry payments received
All-time total
$3,160
Transactions
41
Manufacturers
8
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Medtronic, INC. | 27 | $2,108.87 | |
| Silk Road Medical, INC. | 3 | $554.11 | |
| Philips North America LLC | 5 | $223.71 | |
| Boston Scientific Corporation | 1 | $142.92 | |
| Terumo Medical Corporation | 2 | $49.50 | |
| Cook Medical LLC | 1 | $29.39 | |
| Abbott Laboratories | 1 | $29.10 | |
| AngioDynamics, INC. | 1 | $21.99 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
281
Patients
92
Total drug cost
$20,039
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Clopidogrel (Clopidogrel Bisulfate) | Brand | 228 | 73 | $4,741 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 24 | 19 | $243 |
| Pantoprazole Sodium | Generic | 16 | 0 | $269 |
| Eliquis (Apixaban) | Brand | 13 | 0 | $14,786 |
Hospital affiliations
Frequently asked questions
What is Dr. Gonzalo Obnial's medical specialty?
Dr. Gonzalo Obnial practices Vascular Surgery Physician in Walnut Creek, CA.
Where does Dr. Gonzalo Obnial practice?
Dr. Gonzalo Obnial practices at 2637 Shadelands Dr, Walnut Creek, CA 945982512. Office phone: 9259326330.
What is Dr. Gonzalo Obnial's NPI?
Dr. Gonzalo Obnial's National Provider Identifier (NPI) is 1497909931, issued by NPPES.
Does Dr. Gonzalo Obnial accept Medicare assignment?
Yes. Dr. Gonzalo Obnial accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gonzalo Obnial commonly perform?
Top Medicare-reported procedures in 2023: Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.