Doctor profile · Federal record
Dr. Maria Perez Grau, MD
Hematology & Oncology Physician · Hematology & Oncology Physician · San Juan, PR
- NPI 1821065855
- 20 yrs on file
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1429 Ave Fernandez Juncos, Suite 4
San Juan, PR 009092658
(787) 946-4401
fax (787) 946-4490 - Mailing address
-
Po Box 11367
San Juan, PR 00910
Credentials & registration
- NPI registered
- March 2006 — 20 yrs on file
- Profile last updated
- January 15, 2019
- Specialty taxonomy
- 207RH0003X — NUCC code
- State licenses (2)
- Puerto Rico #13570 · Puerto Rico #13270
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1821065855. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
102
Distinct HCPCS
1
Medicare allowed
$12,895
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 102 | 37 | $126 |
In context: peer comparison
Among 8 peers in San Juan Hematology & Oncology Physician, average services per provider: 88. This provider delivers 1.2× the peer median.Open Payments
Industry payments received
All-time total
$983
Transactions
43
Manufacturers
13
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 11 | $213.08 | |
| AstraZeneca Pharmaceuticals Lp | 7 | $160.03 | |
| Janssen Pharmaceuticals, INC | 5 | $121.41 | |
| Pbg Puerto Rico LLC | 4 | $95.91 | |
| Amgen INC. | 3 | $69.46 | |
| Merck Sharp & Dohme LLC | 3 | $65.29 | |
| GlaxoSmithKline, LLC. | 2 | $53.70 | |
| Bayer Puerto Rico INC. | 2 | $53.54 | |
| E.R. Squibb & Sons, L.L.C. | 2 | $53.53 | |
| Novartis Pharmaceuticals Corporation | 1 | $33.22 | |
| Incyte Corporation | 1 | $29.02 | |
| Karyopharm Therapeutics INC. | 1 | $19.96 | |
| Genzyme Corporation | 1 | $14.88 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
774
Patients
144
Total drug cost
$2,074,264
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Anastrozole | Generic | 195 | 41 | $2,635 |
| Famotidine | Generic | 97 | 35 | $679 |
| Ondansetron Hcl | Generic | 69 | 32 | $385 |
| Xtandi (Enzalutamide) | Brand | 63 | 0 | $812,696 |
| Xarelto (Rivaroxaban) | Brand | 54 | 0 | $29,924 |
| Hydroxyurea | Generic | 41 | 0 | $716 |
| Revlimid (Lenalidomide) | Brand | 40 | 0 | $686,504 |
| Verzenio (Abemaciclib) | Brand | 33 | 0 | $491,358 |
| Eliquis (Apixaban) | Brand | 32 | 0 | $20,423 |
| Warfarin Sodium | Generic | 31 | 0 | $539 |
Frequently asked questions
What is Dr. Maria Perez Grau's medical specialty?
Dr. Maria Perez Grau practices Hematology & Oncology Physician in San Juan, PR.
Where does Dr. Maria Perez Grau practice?
Dr. Maria Perez Grau practices at 1429 Ave Fernandez Juncos, San Juan, PR 009092658. Office phone: 7879464401.
What is Dr. Maria Perez Grau's NPI?
Dr. Maria Perez Grau's National Provider Identifier (NPI) is 1821065855, issued by NPPES.
What procedures does Dr. Maria Perez Grau commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.