Doctor profile · Federal record
Dr. Guillermo Alonso, MD
Legal Medicine (CMS: Internal Medicine) · Miami, FL
- NPI 1336120708
- Accepts Medicare
- 43 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
8000 W Flagler St Ste 206
Miami, FL 331442153
(786) 703-1620
fax (786) 709-1619 - Additional location
-
12700 Sw 128Th St
Miami, FL 331865377
(305) 278-7579 - Mailing address
-
3441 Sw 134 Court
Miami, FL 331756944
Credentials & registration
- NPI registered
- November 2005 — 21 yrs on file
- Profile last updated
- January 7, 2026
- Year of graduation
- 1983 — 43 yrs since
- Specialty taxonomy
- 173000000X — NUCC code
- State license (1)
- Florida #ME56063
- Medicaid
- FL #051636800
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1336120708. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,764
Distinct HCPCS
10
Medicare allowed
$257,267
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99308 |
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 1,529 | 42 | $79 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 368 | 34 | $85 | |
99349 |
Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes | 315 | 35 | $128 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 95 | 17 | $128 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 85 | 20 | $135 | |
99309 |
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 78 | 22 | $112 | |
99497 |
Advance care planning, first 30 minutes | 69 | 36 | $80 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 42 | 21 | $96 | |
99497 |
Advance care planning, first 30 minutes | 42 | 40 | $85 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 39 | 28 | $141 |
In context: peer comparison
Among 1 peers in Miami Legal Medicine, average services per provider: 197. This provider delivers 14× the peer median.Open Payments
Industry payments received
All-time total
$626
Transactions
8
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Teva Pharmaceuticals USA, INC. | 3 | $326.64 | |
| Otsuka America Pharmaceutical, INC. | 5 | $299.24 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,135
Patients
286
Total drug cost
$79,969
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 254 | 34 | $3,867 |
| Losartan Potassium | Generic | 221 | 26 | $2,273 |
| Amlodipine Besylate | Generic | 185 | 26 | $1,478 |
| Pantoprazole Sodium | Generic | 152 | 25 | $2,125 |
| Donepezil Hcl | Generic | 143 | 17 | $1,322 |
| Lactulose | Generic | 143 | 21 | $3,661 |
| Levothyroxine Sodium | Generic | 130 | 19 | $1,685 |
| Metoprolol Tartrate | Generic | 126 | 17 | $839 |
| Silver Sulfadiazine | Generic | 126 | 16 | $5,815 |
| Montelukast Sodium | Generic | 117 | 18 | $2,008 |
Frequently asked questions
What is Dr. Guillermo Alonso's medical specialty?
Dr. Guillermo Alonso practices Legal Medicine in Miami, FL.
Where does Dr. Guillermo Alonso practice?
Dr. Guillermo Alonso practices at 8000 W Flagler St Ste 206, Miami, FL 331442153. Office phone: 7867031620.
What is Dr. Guillermo Alonso's NPI?
Dr. Guillermo Alonso's National Provider Identifier (NPI) is 1336120708, issued by NPPES.
Does Dr. Guillermo Alonso accept Medicare assignment?
Yes. Dr. Guillermo Alonso accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Guillermo Alonso commonly perform?
Top Medicare-reported procedures in 2023: Subsequent nursing facility care with straightforward level of medical decision making (HCPCS 99308); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Residence visit for established patient with moderate level of medical decision making (HCPCS 99349). Source: CMS Medicare Physician & Other Practitioners file.