Doctor profile · Federal record
Dr. Richard Gruen, M.D.
Ophthalmology Physician (CMS: Ophthalmology) · Owings Mills, MD
- NPI 1043221088
- Accepts Medicare
- MIPS 66.8 / 100 · 2023
- 48 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
10 Crossroads Drive, Suite 104
Owings Mills, MD 21117
(410) 654-5700
fax (410) 654-5399
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1978 — 48 yrs since
- Specialty taxonomy
- 207W00000X — NUCC code
- State license (1)
- Maryland #D0025907
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1043221088. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,458
Distinct HCPCS
10
Medicare allowed
$292,343
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 1,015 | 838 | $135 | |
92133 |
Imaging of optic nerve | 319 | 269 | $38 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 253 | 187 | $95 | |
92250 |
Photography of the retina | 188 | 178 | $39 | |
92134 |
Imaging of retina | 159 | 149 | $42 | |
92083 |
Exam of visual field with extended testing | 146 | 132 | $67 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 101 | 101 | $176 | |
66984 |
Removal of cataract with insertion of prosthetic lens | 94 | 57 | $563 | |
92136 |
Measurement of corneal curvature and depth of eye | 66 | 62 | $26 | |
66821 |
Removal of recurring cataract in lens capsule using a laser | 45 | 29 | $353 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 162. This provider delivers 15× the peer median.Open Payments
Industry payments received
All-time total
$256
Transactions
5
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| SUN PHARMACEUTICAL INDUSTRIES INC. | 1 | $104.17 | |
| Bausch & Lomb Americas Inc. | 1 | $92.16 | |
| Alcon Vision LLC | 3 | $60.09 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,557
Patients
475
Total drug cost
$86,975
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Latanoprost | Generic | 740 | 190 | $17,189 |
| Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) | Brand | 254 | 78 | $8,003 |
| Brimonidine Tartrate | Generic | 85 | 27 | $3,617 |
| Prednisolone Acetate | Generic | 84 | 56 | $3,588 |
| Timolol Maleate | Generic | 78 | 24 | $1,390 |
| Dorzolamide Hcl | Generic | 63 | 16 | $2,630 |
| Pilocarpine Hcl | Generic | 61 | 21 | $4,984 |
| Tobramycin-Dexamethasone (Tobramycin/Dexamethasone) | Brand | 39 | 37 | $2,566 |
| Travoprost | Generic | 37 | 15 | $12,737 |
| Lumigan (Bimatoprost) | Brand | 32 | 0 | $13,406 |
Frequently asked questions
What is Dr. Richard Gruen's medical specialty?
Dr. Richard Gruen practices Ophthalmology Physician in Owings Mills, MD.
Where does Dr. Richard Gruen practice?
Dr. Richard Gruen practices at 10 Crossroads Drive, Owings Mills, MD 21117. Office phone: 4106545700.
What is Dr. Richard Gruen's NPI?
Dr. Richard Gruen's National Provider Identifier (NPI) is 1043221088, issued by NPPES.
Does Dr. Richard Gruen accept Medicare assignment?
Yes. Dr. Richard Gruen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Richard Gruen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Imaging of optic nerve (HCPCS 92133); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.