Doctor profile · Federal record
Dr. Merbil Gonzalez Diaz, M.D.
Neurology Physician (CMS: Neurology) · Mayaguez, PR
- NPI 1902878614
- Accepts Medicare
- 32 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
351 Ave Hostos, Medical Emporium Suite 309
Mayaguez, PR 006801502
(787) 805-7319
Credentials & registration
- NPI registered
- February 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1994 — 32 yrs since
- Specialty taxonomy
- 2084N0400X — NUCC code
- State license (1)
- Puerto Rico #13818
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1902878614. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
215
Distinct HCPCS
8
Medicare allowed
$22,944
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 50 | 37 | $89 | |
95886 |
Needle measurement of electrical activity in arm or leg muscles, complete study | 40 | 11 | $97 | |
99442 |
Telephone medical discussion with physician, 11-20 minutes | 35 | 19 | $65 | |
99441 |
Telephone medical discussion with physician, 5-10 minutes | 26 | 18 | $34 | |
93880 |
Ultrasound of both sides of head and neck blood flow | 18 | 18 | $154 | |
93886 |
Complete ultrasound of within the brain blood flow | 18 | 18 | $270 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 17 | 17 | $111 | |
95910 |
Nerve conduction, 7-8 studies | 11 | 11 | $174 |
In context: peer comparison
Among 2 peers in Mayaguez Neurology Physician, average services per provider: 37. This provider delivers 5.8× the peer median.Open Payments
Industry payments received
All-time total
$561
Transactions
9
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Emd Serono, INC. | 2 | $250.00 | |
| Abbvie INC. | 1 | $124.39 | |
| E.R. Squibb & Sons, L.L.C. | 1 | $84.75 | |
| Novartis Pharmaceuticals Corporation | 4 | $81.35 | |
| Pbg Puerto Rico LLC | 1 | $20.69 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
9,213
Patients
1,934
Total drug cost
$289,816
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Escitalopram Oxalate | Generic | 2,106 | 436 | $13,398 |
| Trazodone Hcl | Generic | 908 | 199 | $5,390 |
| Mirtazapine | Generic | 809 | 181 | $6,991 |
| Quetiapine Fumarate | Generic | 769 | 116 | $5,767 |
| Galantamine ER (Galantamine Hbr) | Brand | 736 | 171 | $49,358 |
| Memantine Hcl ER (Memantine Hcl) | Brand | 712 | 118 | $83,602 |
| Rivastigmine | Generic | 568 | 121 | $87,929 |
| Gabapentin | Generic | 567 | 124 | $3,548 |
| Risperidone | Generic | 402 | 74 | $2,288 |
| Buspirone Hcl | Generic | 338 | 73 | $7,276 |
Frequently asked questions
What is Dr. Merbil Gonzalez Diaz's medical specialty?
Dr. Merbil Gonzalez Diaz practices Neurology Physician in Mayaguez, PR.
Where does Dr. Merbil Gonzalez Diaz practice?
Dr. Merbil Gonzalez Diaz practices at 351 Ave Hostos, Mayaguez, PR 006801502. Office phone: 7878057319.
What is Dr. Merbil Gonzalez Diaz's NPI?
Dr. Merbil Gonzalez Diaz's National Provider Identifier (NPI) is 1902878614, issued by NPPES.
Does Dr. Merbil Gonzalez Diaz accept Medicare assignment?
Yes. Dr. Merbil Gonzalez Diaz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Merbil Gonzalez Diaz commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Needle measurement of electrical activity in arm or leg muscles, complete study (HCPCS 95886); Telephone medical discussion with physician (HCPCS 99442). Source: CMS Medicare Physician & Other Practitioners file.