Doctor profile · Federal record
Dr. Margaret Mallari, DO
Internal Medicine Physician (CMS: Internal Medicine) · Student in an Organized Health Care Education/Training Program · Baltimore, MD
- NPI 1124518519
- MIPS 74.4 / 100 · 2023
- 8 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
5200 Eastern Ave Fl East2
Baltimore, MD 212242734
(410) 550-5018
fax (410) 550-2972 - Additional location
-
1925 Pacific Ave
Atlantic City, NJ 084016713
(609) 449-4391 - Mailing address
-
6201 Greenleigh Ave
Middle River, MD 212202004
Credentials & registration
- NPI registered
- May 2018 — 8 yrs on file
- Profile last updated
- September 8, 2021
- Year of graduation
- 2018 — 8 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Maryland #H92410
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1124518519. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
829
Distinct HCPCS
4
Medicare allowed
$63,492
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
G0316 |
Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th | 430 | 80 | $31 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 349 | 134 | $123 | |
99239 |
Hospital discharge day management, more than 30 minutes | 28 | 28 | $117 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 22 | 22 | $181 |
In context: peer comparison
Among 363 peers in Baltimore Internal Medicine Physician, average services per provider: 105. This provider delivers 7.9× the peer median.Frequently asked questions
What is Dr. Margaret Mallari's medical specialty?
Dr. Margaret Mallari practices Internal Medicine Physician in Baltimore, MD.
Where does Dr. Margaret Mallari practice?
Dr. Margaret Mallari practices at 5200 Eastern Ave Fl East2, Baltimore, MD 212242734. Office phone: 4105505018.
What is Dr. Margaret Mallari's NPI?
Dr. Margaret Mallari's National Provider Identifier (NPI) is 1124518519, issued by NPPES.
Does Dr. Margaret Mallari accept Medicare assignment?
Dr. Margaret Mallari does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Margaret Mallari commonly perform?
Top Medicare-reported procedures in 2023: Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th (HCPCS G0316); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.