Doctor profile · Federal record
Dr. William Rivera, M.D
Surgery Physician (CMS: Colorectal Surgery (Proctology)) · General Acute Care Hospital · Apple Valley, CA
- NPI 1447498985
- Accepts Medicare
- MIPS 78.4 / 100 · 2023
- 23 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
18144 US Hwy 18 Suite 130
Apple Valley, CA 92307
(760) 278-9477
fax (760) 813-7004 - Mailing address
-
12277 Apple Valley RD #450
Apple Valley, CA 92308
Credentials & registration
- NPI registered
- January 2009 — 17 yrs on file
- Profile last updated
- March 22, 2024
- Year of graduation
- 2003 — 23 yrs since
- Specialty taxonomy
- 208600000X — NUCC code
- State license (1)
- California #A 111003
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1447498985. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
833
Distinct HCPCS
6
Medicare allowed
$100,036
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 462 | 100 | $81 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 140 | 123 | $176 | |
99291 |
Critical care, first 30-74 minutes | 76 | 16 | $216 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 75 | 75 | $172 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 45 | 32 | $93 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 35 | 32 | $132 |
In context: peer comparison
Among 4 peers in this city , average services per provider: 146. This provider delivers 5.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
234
Patients
224
Total drug cost
$8,541
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 100 | 91 | $956 |
| Naloxone Hcl | Generic | 95 | 94 | $7,366 |
| Acetaminophen-Codeine (Acetaminophen With Codeine) | Brand | 39 | 39 | $219 |
Hospital affiliations
Frequently asked questions
What is Dr. William Rivera's medical specialty?
Dr. William Rivera practices Surgery Physician in Apple Valley, CA.
Where does Dr. William Rivera practice?
Dr. William Rivera practices at 18144 US Hwy 18 Suite 130, Apple Valley, CA 92307. Office phone: 7602789477.
What is Dr. William Rivera's NPI?
Dr. William Rivera's National Provider Identifier (NPI) is 1447498985, issued by NPPES.
Does Dr. William Rivera accept Medicare assignment?
Yes. Dr. William Rivera accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Rivera commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.