Doctor profile · Federal record
Dr. Gishlaine Alfonso, MD
Neurology Physician (CMS: Neurology) · Hato Rey, PR
- NPI 1053374975
- Accepts Medicare
- 40 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
Clinica Las Americas Suite 402, Roosevelt Ave. #400
Hato Rey, PR 00918
(787) 767-2248
fax (787) 766-3219
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- January 19, 2010
- Year of graduation
- 1986 — 40 yrs since
- Specialty taxonomy
- 2084N0400X — NUCC code
- State license (1)
- Puerto Rico #9986
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1053374975. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
81
Distinct HCPCS
2
Medicare allowed
$8,586
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 62 | 41 | $88 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 19 | 19 | $165 |
In context: peer comparison
Among 2 peers in Hato Rey Neurology Physician, average services per provider: 45. This provider delivers 1.8× the peer median.Open Payments
Industry payments received
All-time total
$19,819
Transactions
61
Manufacturers
12
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Alexion Pharmaceuticals, INC. | 16 | $18,217.23 | |
| Biogen, INC. | 11 | $260.70 | |
| Novartis Pharmaceuticals Corporation | 12 | $244.41 | |
| Emd Serono, INC. | 5 | $239.33 | |
| Amgen INC. | 6 | $206.43 | |
| Ucb, INC. | 2 | $156.82 | |
| E.R. Squibb & Sons, L.L.C. | 1 | $119.11 | |
| Tg Therapeutics, INC. | 1 | $113.03 | |
| Lundbeck LLC | 1 | $112.98 | |
| Abbvie INC. | 3 | $79.66 | |
| Genentech USA, INC. | 2 | $49.58 | |
| Pbg Puerto Rico LLC | 1 | $19.26 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,019
Patients
216
Total drug cost
$635,286
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pyridostigmine Bromide | Generic | 180 | 35 | $13,547 |
| Prednisone | Generic | 116 | 22 | $886 |
| Galantamine ER (Galantamine Hbr) | Brand | 109 | 27 | $10,271 |
| Gabapentin | Generic | 100 | 29 | $1,546 |
| Memantine Hcl | Generic | 98 | 29 | $3,278 |
| Carbidopa-Levodopa (Carbidopa/Levodopa) | Brand | 57 | 11 | $1,541 |
| Sertraline Hcl | Generic | 50 | 12 | $375 |
| Duloxetine Hcl | Generic | 48 | 11 | $587 |
| Clonazepam | Generic | 44 | 11 | $234 |
| Radicava Ors (Edaravone) | Brand | 43 | 0 | $571,064 |
Frequently asked questions
What is Dr. Gishlaine Alfonso's medical specialty?
Dr. Gishlaine Alfonso practices Neurology Physician in Hato Rey, PR.
Where does Dr. Gishlaine Alfonso practice?
Dr. Gishlaine Alfonso practices at Clinica Las Americas Suite 402, Hato Rey, PR 00918. Office phone: 7877672248.
What is Dr. Gishlaine Alfonso's NPI?
Dr. Gishlaine Alfonso's National Provider Identifier (NPI) is 1053374975, issued by NPPES.
Does Dr. Gishlaine Alfonso accept Medicare assignment?
Yes. Dr. Gishlaine Alfonso accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gishlaine Alfonso commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.