Doctor profile · Federal record
Dr. Maria Diaz, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Lawrence, MA
- NPI 1023124880
- Accepts Medicare
- 27 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
150 Park St
Lawrence, MA 018412517
(978) 685-1770
fax (978) 682-5787
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- November 4, 2015
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Massachusetts #227339
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1023124880. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
143
Distinct HCPCS
3
Medicare allowed
$8,279
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 81 | 29 | $80 | |
83037 |
Hemoglobin a1c level, by device for home use | 45 | 36 | $10 | |
99238 |
Hospital discharge day management, 30 minutes or less | 17 | 16 | $82 |
In context: peer comparison
Among 12 peers in Lawrence Internal Medicine Physician, average services per provider: 113. This provider delivers 1.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
3,973
Patients
1,131
Total drug cost
$423,683
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 629 | 192 | $12,200 |
| Lisinopril | Generic | 458 | 129 | $5,340 |
| Amlodipine Besylate | Generic | 434 | 114 | $3,628 |
| Metformin Hcl | Generic | 386 | 98 | $6,038 |
| Hydrochlorothiazide | Generic | 322 | 88 | $1,608 |
| Omeprazole | Generic | 288 | 81 | $5,787 |
| Losartan Potassium | Generic | 206 | 60 | $4,547 |
| Trulicity (Dulaglutide) | Brand | 205 | 43 | $363,986 |
| Metoprolol Succinate | Generic | 196 | 50 | $3,503 |
| Fluticasone Propionate | Generic | 151 | 64 | $2,417 |
Frequently asked questions
What is Dr. Maria Diaz's medical specialty?
Dr. Maria Diaz practices Internal Medicine Physician in Lawrence, MA.
Where does Dr. Maria Diaz practice?
Dr. Maria Diaz practices at 150 Park St, Lawrence, MA 018412517. Office phone: 9786851770.
What is Dr. Maria Diaz's NPI?
Dr. Maria Diaz's National Provider Identifier (NPI) is 1023124880, issued by NPPES.
Does Dr. Maria Diaz accept Medicare assignment?
Yes. Dr. Maria Diaz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Maria Diaz commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hemoglobin a1c level, by device for home use (HCPCS 83037); Hospital discharge day management (HCPCS 99238). Source: CMS Medicare Physician & Other Practitioners file.