Doctor profile · Federal record
Dr. Mark Gershenbaum, DO
Hospitalist Physician · Family Medicine Physician · Freehold, NJ
- NPI 1982665782
- MIPS 74.4 / 100 · 2023
- 20 yrs on file
- Male
- No sanctions
Practice & contact
- Primary practice
-
901 West Main St
Freehold, NJ 07728
(732) 294-2666
fax (732) 431-8267 - Mailing address
-
Po Box 13700-1901
Philadelphia, PA 191911901
Credentials & registration
- NPI registered
- March 2006 — 20 yrs on file
- Profile last updated
- September 11, 2025
- Specialty taxonomy
- 208M00000X — NUCC code
- State license (1)
- New Jersey #25MB04672200
- Medicaid
- NJ #5453101
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1982665782. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
5,012
Distinct HCPCS
8
Medicare allowed
$643,579
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 2,584 | 652 | $127 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 861 | 412 | $84 | |
99239 |
Hospital discharge day management, more than 30 minutes | 718 | 584 | $122 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 687 | 576 | $184 | |
99291 |
Critical care, first 30-74 minutes | 95 | 74 | $226 | |
99497 |
Advance care planning, first 30 minutes | 25 | 24 | $80 | |
99292 |
Critical care, each additional 30 minutes | 24 | 24 | $113 | |
99236 |
Initial hospital care with same-day admission and discharge with high level of medical decision making, per day, if using time, at least 85 minutes | 18 | 18 | $201 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 626. This provider delivers 8.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
65
Patients
25
Total drug cost
$8,191
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cefuroxime (Cefuroxime Axetil) | Brand | 16 | 14 | $248 |
| Carvedilol | Generic | 13 | 0 | $185 |
| Eliquis (Apixaban) | Brand | 13 | 0 | $7,585 |
| Pantoprazole Sodium | Generic | 12 | 11 | $101 |
| Spironolactone | Generic | 11 | 0 | $72 |
Frequently asked questions
What is Dr. Mark Gershenbaum's medical specialty?
Dr. Mark Gershenbaum practices Hospitalist Physician in Freehold, NJ.
Where does Dr. Mark Gershenbaum practice?
Dr. Mark Gershenbaum practices at 901 West Main St, Freehold, NJ 07728. Office phone: 7322942666.
What is Dr. Mark Gershenbaum's NPI?
Dr. Mark Gershenbaum's National Provider Identifier (NPI) is 1982665782, issued by NPPES.
What procedures does Dr. Mark Gershenbaum commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.