Doctor profile · Federal record
Dr. Salvador Guevara, M.D.
Surgery Physician (CMS: Colorectal Surgery (Proctology)) · Walnut Creek, CA
- NPI 1336427939
- Accepts Medicare
- 22 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
3003 Oak RD Ste 104
Walnut Creek, CA 94597
(925) 391-2220
fax (925) 391-2221 - Additional location
-
4721 Dallas Ranch RD
Antioch, CA 945318811
(925) 778-0679
fax (925) 778-3567 - Mailing address
-
2345 Country Hills Dr # 100
Antioch, CA 945097319
Credentials & registration
- NPI registered
- July 2011 — 15 yrs on file
- Profile last updated
- January 18, 2019
- Year of graduation
- 2004 — 22 yrs since
- Specialty taxonomy
- 208600000X — NUCC code
- State license (1)
- California #059593
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1336427939. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
247
Distinct HCPCS
9
Medicare allowed
$32,760
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
46600 |
Diagnostic exam of anus using an endoscope | 49 | 47 | $159 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 43 | 33 | $103 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 40 | 37 | $148 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 23 | 23 | $260 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 21 | 21 | $134 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 20 | 14 | $56 | |
45300 |
Diagnostic exam of rectum and lower large bowel using an endoscope | 18 | 16 | $29 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 17 | 15 | $63 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 16 | 16 | $195 |
In context: peer comparison
Among 12 peers in Walnut Creek Surgery Physician, average services per provider: 42. This provider delivers 5.9× the peer median.Open Payments
Industry payments received
All-time total
$25,194
Transactions
29
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Intuitive Surgical, INC. | 24 | $25,028.78 | |
| Mimedx Group, INC. | 1 | $75.40 | |
| Edwards Lifesciences Corporation | 1 | $26.93 | |
| Philips North America LLC | 1 | $25.90 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 1 | $21.75 | |
| AstraZeneca Pharmaceuticals Lp | 1 | $14.88 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
167
Patients
93
Total drug cost
$1,513
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Metronidazole | Generic | 24 | 20 | $78 |
| Loperamide (Loperamide Hcl) | Brand | 23 | 0 | $668 |
| Oxycodone Hcl | Generic | 23 | 12 | $169 |
| Tramadol Hcl | Generic | 19 | 19 | $66 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 17 | 0 | $209 |
| Ibuprofen | Generic | 17 | 13 | $85 |
| Ondansetron Hcl | Generic | 17 | 16 | $54 |
| Neomycin Sulfate | Generic | 14 | 13 | $88 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 13 | 0 | $97 |
Hospital affiliations
Frequently asked questions
What is Dr. Salvador Guevara's medical specialty?
Dr. Salvador Guevara practices Surgery Physician in Walnut Creek, CA.
Where does Dr. Salvador Guevara practice?
Dr. Salvador Guevara practices at 3003 Oak RD Ste 104, Walnut Creek, CA 94597. Office phone: 9253912220.
What is Dr. Salvador Guevara's NPI?
Dr. Salvador Guevara's National Provider Identifier (NPI) is 1336427939, issued by NPPES.
Does Dr. Salvador Guevara accept Medicare assignment?
Yes. Dr. Salvador Guevara accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Salvador Guevara commonly perform?
Top Medicare-reported procedures in 2023: Diagnostic exam of anus using an endoscope (HCPCS 46600); 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.