Doctor profile · Federal record
Dr. Maria Gerew, MD, MPH
Internal Medicine Physician · Morristown, NJ
- NPI 1629606157
- 6 yrs on file
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
435 South St Ste 350
Morristown, NJ 079606474
(973) 971-6700
fax (973) 290-7480 - Additional location
-
100 Madison Ave
Morristown, NJ 079606136
(973) 971-5912
fax (973) 290-8325 - Mailing address
-
465 South St Ste 103
Morristown, NJ 079606442
Credentials & registration
- NPI registered
- March 2020 — 6 yrs on file
- Profile last updated
- December 1, 2023
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- New Jersey #25MA11915600
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1629606157. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
186
Distinct HCPCS
3
Medicare allowed
$18,134
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 128 | 62 | $85 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 42 | 26 | $128 | |
99239 |
Hospital discharge day management, more than 30 minutes | 16 | 16 | $119 |
In context: peer comparison
Among 23 peers in Morristown Internal Medicine Physician, average services per provider: 112. This provider delivers 1.7× the peer median.Open Payments
Industry payments received
All-time total
$88
Transactions
5
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 4 | $71.14 | |
| Janssen Pharmaceuticals, INC | 1 | $16.94 |
By nature of payment
Frequently asked questions
What is Dr. Maria Gerew's medical specialty?
Dr. Maria Gerew practices Internal Medicine Physician in Morristown, NJ.
Where does Dr. Maria Gerew practice?
Dr. Maria Gerew practices at 435 South St Ste 350, Morristown, NJ 079606474. Office phone: 9739716700.
What is Dr. Maria Gerew's NPI?
Dr. Maria Gerew's National Provider Identifier (NPI) is 1629606157, issued by NPPES.
What procedures does Dr. Maria Gerew commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.