Doctor profile · Federal record
Dr. Marichu Theresa Matas, M.D.
Internal Medicine Physician (CMS: Hospitalist) · Hospitalist Physician · Rockville, MD
- NPI 1558526228
- Accepts Medicare
- 36 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
10110 Molecular Drive, Suite 206
Rockville, MD 208507542
(301) 279-2779
fax (240) 403-0190
Credentials & registration
- NPI registered
- July 2008 — 18 yrs on file
- Profile last updated
- August 12, 2025
- Year of graduation
- 1990 — 36 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State licenses (2)
- Maryland #D0069148 · Maryland #D69148
- Medicaid (2)
- MD #404776100 · MD #026406700
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1558526228. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,313
Distinct HCPCS
4
Medicare allowed
$172,208
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 1,007 | 437 | $129 | |
99239 |
Hospital discharge day management, more than 30 minutes | 203 | 196 | $125 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 82 | 82 | $188 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 21 | 11 | $86 |
In context: peer comparison
Among 50 peers in this city , average services per provider: 138. This provider delivers 9.5× the peer median.Open Payments
Industry payments received
All-time total
$290
Transactions
12
Manufacturers
7
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novartis Pharmaceuticals Corporation | 3 | $69.14 | |
| UCB, Inc. | 2 | $68.60 | |
| Novo Nordisk Inc | 2 | $49.93 | |
| Merck Sharp & Dohme LLC | 2 | $45.56 | |
| Fisher & Paykel Healthcare Inc | 1 | $23.95 | |
| Vapotherm Inc | 1 | $18.53 | |
| Janssen Pharmaceuticals, Inc | 1 | $14.47 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
72
Patients
46
Total drug cost
$609
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Carvedilol | Generic | 23 | 14 | $118 |
| Cefuroxime (Cefuroxime Axetil) | Brand | 22 | 20 | $313 |
| Amlodipine Besylate | Generic | 15 | 12 | $41 |
| Pantoprazole Sodium | Generic | 12 | 0 | $137 |
Frequently asked questions
What is Dr. Marichu Theresa Matas's medical specialty?
Dr. Marichu Theresa Matas practices Internal Medicine Physician in Rockville, MD.
Where does Dr. Marichu Theresa Matas practice?
Dr. Marichu Theresa Matas practices at 10110 Molecular Drive, Rockville, MD 208507542. Office phone: 3012792779.
What is Dr. Marichu Theresa Matas's NPI?
Dr. Marichu Theresa Matas's National Provider Identifier (NPI) is 1558526228, issued by NPPES.
Does Dr. Marichu Theresa Matas accept Medicare assignment?
Yes. Dr. Marichu Theresa Matas accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marichu Theresa Matas commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.