Doctor profile · Federal record
Dr. Nicholas Mahoney, MD
Ophthalmology Physician (CMS: Ophthalmology) · Surgery Physician · Ophthalmic Plastic and Reconstructive Surgery Physician · Baltimore, MD
- NPI 1194875864
- MIPS 75.0 / 100 · 2023
- 20 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
600 N Wolfe St
Baltimore, MD 212870005
(410) 955-1112
fax (410) 614-9987 - Mailing address
-
Po Box 64481
Baltimore, MD 212644481
Credentials & registration
- NPI registered
- January 2007 — 19 yrs on file
- Profile last updated
- April 29, 2016
- Year of graduation
- 2006 — 20 yrs since
- Specialty taxonomy
- 207W00000X — NUCC code
- State licenses (2)
- Maryland #D70837 · Pennsylvania #MT188147
- Medicaid
- MD #036177100
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1194875864. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
5,559
Distinct HCPCS
10
Medicare allowed
$237,186
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J0585 |
Injection, onabotulinumtoxina, 1 unit | 4,565 | 15 | $6 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 485 | 402 | $141 | |
92081 |
Exam of visual field with limited testing | 66 | 66 | $36 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 61 | 58 | $102 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 49 | 49 | $182 | |
64612 |
Injection of chemical for paralysis of nerve muscles on side of face | 46 | 15 | $221 | |
67904 |
Repair of tendon of upper eyelid | 45 | 45 | $842 | |
92012 |
Established patient problem focused exam of visual system | 45 | 43 | $101 | |
68840 |
Probing of nasal tear duct | 42 | 42 | $195 | |
67917 |
Extensive repair of turning-outward eyelid defect | 34 | 33 | $430 |
In context: peer comparison
Among 61 peers in Baltimore Ophthalmology Physician, average services per provider: 434. This provider delivers 13× the peer median.Open Payments
Industry payments received
All-time total
$3,837
Transactions
8
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Synthes GmbH | 5 | $3,762.27 | |
| Medical Device Business Services, INC. | 1 | $41.56 | |
| Biotissue Holdings INC. | 1 | $20.17 | |
| CooperVision INC. | 1 | $13.46 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
161
Patients
119
Total drug cost
$3,265
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Erythromycin (Erythromycin Base) | Brand | 98 | 68 | $1,180 |
| Tobramycin-Dexamethasone (Tobramycin/Dexamethasone) | Brand | 33 | 25 | $1,978 |
| Azithromycin | Generic | 17 | 14 | $86 |
| Tramadol Hcl | Generic | 13 | 12 | $21 |
Hospital affiliations
Frequently asked questions
What is Dr. Nicholas Mahoney's medical specialty?
Dr. Nicholas Mahoney practices Ophthalmology Physician in Baltimore, MD.
Where does Dr. Nicholas Mahoney practice?
Dr. Nicholas Mahoney practices at 600 N Wolfe St, Baltimore, MD 212870005. Office phone: 4109551112.
What is Dr. Nicholas Mahoney's NPI?
Dr. Nicholas Mahoney's National Provider Identifier (NPI) is 1194875864, issued by NPPES.
Does Dr. Nicholas Mahoney accept Medicare assignment?
Dr. Nicholas Mahoney does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Nicholas Mahoney commonly perform?
Top Medicare-reported procedures in 2023: Injection, onabotulinumtoxina, 1 unit (HCPCS J0585); Established patient office or other outpatient visit (HCPCS 99214); Exam of visual field with limited testing (HCPCS 92081). Source: CMS Medicare Physician & Other Practitioners file.