Doctor profile · Federal record
Dr. Michael Portillo, M.D.
Family Medicine Physician (CMS: Family Practice) · Sonora, CA
- NPI 1306235957
- Accepts Medicare
- MIPS 79.2 / 100 · 2023
- 14 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
680 Guzzi Ln Ste 106
Sonora, CA 953705288
(209) 536-5770
fax (209) 536-3596 - Additional location
-
374 W Olive Ave, Suite A
Merced, CA 953483181
(209) 384-5766
fax (209) 383-4230 - Mailing address
-
Po Box 655
Twain Harte, CA 953830655
Credentials & registration
- NPI registered
- January 2015 — 11 yrs on file
- Profile last updated
- December 14, 2017
- Year of graduation
- 2012 — 14 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- California #A144432
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1306235957. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,720
Distinct HCPCS
6
Medicare allowed
$149,323
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 658 | 367 | $66 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 650 | 377 | $98 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 261 | 261 | $134 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 91 | 79 | $35 | |
99442 |
Telephone medical discussion with physician, 11-20 minutes | 42 | 33 | $67 | |
20610 |
Aspiration and/or injection of fluid from large joint | 18 | 15 | $45 |
In context: peer comparison
Among 4 peers in Sonora Family Medicine Physician, average services per provider: 163. This provider delivers 11× the peer median.Open Payments
Industry payments received
All-time total
$234
Transactions
12
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 6 | $104.26 | |
| Pfizer INC. | 1 | $36.74 | |
| Amgen INC. | 2 | $35.93 | |
| Novo Nordisk INC | 1 | $20.00 | |
| Astellas Pharma US INC | 1 | $19.86 | |
| Novartis Pharmaceuticals Corporation | 1 | $16.77 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
4,499
Patients
1,232
Total drug cost
$73,080
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 756 | 203 | $11,961 |
| Lisinopril | Generic | 544 | 150 | $6,482 |
| Levothyroxine Sodium | Generic | 379 | 113 | $7,139 |
| Amlodipine Besylate | Generic | 365 | 100 | $4,016 |
| Losartan Potassium | Generic | 333 | 96 | $4,282 |
| Gabapentin | Generic | 287 | 74 | $10,230 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 269 | 57 | $6,835 |
| Omeprazole | Generic | 258 | 81 | $5,265 |
| Tamsulosin Hcl | Generic | 200 | 54 | $4,880 |
| Metformin Hcl | Generic | 194 | 54 | $2,407 |
Hospital affiliations
Frequently asked questions
What is Dr. Michael Portillo's medical specialty?
Dr. Michael Portillo practices Family Medicine Physician in Sonora, CA.
Where does Dr. Michael Portillo practice?
Dr. Michael Portillo practices at 680 Guzzi Ln Ste 106, Sonora, CA 953705288. Office phone: 2095365770.
What is Dr. Michael Portillo's NPI?
Dr. Michael Portillo's National Provider Identifier (NPI) is 1306235957, issued by NPPES.
Does Dr. Michael Portillo accept Medicare assignment?
Yes. Dr. Michael Portillo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Portillo commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.