Doctor profile · Federal record
Dr. John Merriam, M.D.
Ophthalmology Physician (CMS: Ophthalmology) · Ophthalmology Physician · New York, NY
- NPI 1821010307
- Accepts Medicare
- MIPS 75.0 / 100 · 2023
- 49 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
635 W 165Th St
New York, NY 100323724
(212) 305-5402
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- November 15, 2021
- Year of graduation
- 1977 — 49 yrs since
- Specialty taxonomy
- 207W00000X — NUCC code
- State licenses (2)
- New York #155074-1 · New York #155074
- Medicaid
- NY #01114552
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1821010307. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,665
Distinct HCPCS
10
Medicare allowed
$190,187
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
92014 |
Established patient complete exam of visual system | 828 | 496 | $145 | |
92134 |
Imaging of retina | 427 | 187 | $23 | |
92136 |
Measurement of corneal curvature and depth of eye | 102 | 102 | $54 | |
92133 |
Imaging of optic nerve | 101 | 41 | $21 | |
92083 |
Exam of visual field with extended testing | 80 | 71 | $73 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 44 | 44 | $254 | |
66984 |
Removal of cataract with insertion of prosthetic lens | 37 | 25 | $625 | |
66821 |
Removal of recurring cataract in lens capsule using a laser | 21 | 19 | $346 | |
95060 |
Test for allergy using allergenic extract applied to eye | 14 | 14 | $45 | |
66821 |
Removal of recurring cataract in lens capsule using a laser | 11 | 11 | $382 |
In context: peer comparison
Among 152 peers in this city , average services per provider: 275. This provider delivers 6.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
887
Patients
283
Total drug cost
$141,753
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Timolol Maleate | Generic | 193 | 57 | $3,128 |
| Latanoprost | Generic | 160 | 51 | $5,571 |
| Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) | Brand | 81 | 18 | $2,699 |
| Ofloxacin | Generic | 62 | 40 | $1,382 |
| Prednisolone Acetate | Generic | 62 | 42 | $3,622 |
| Flurbiprofen Sodium | Generic | 58 | 38 | $1,813 |
| Lumigan (Bimatoprost) | Brand | 41 | 0 | $16,858 |
| Brimonidine Tartrate | Generic | 40 | 11 | $6,360 |
| Alphagan P (Brimonidine Tartrate) | Brand | 37 | 12 | $20,295 |
| Neomycin-Polymyxin-Dexameth (Neomycin/Polymyxin B/Dexametha) | Brand | 32 | 14 | $481 |
Hospital affiliations
Frequently asked questions
What is Dr. John Merriam's medical specialty?
Dr. John Merriam practices Ophthalmology Physician in New York, NY.
Where does Dr. John Merriam practice?
Dr. John Merriam practices at 635 W 165Th St, New York, NY 100323724. Office phone: 2123055402.
What is Dr. John Merriam's NPI?
Dr. John Merriam's National Provider Identifier (NPI) is 1821010307, issued by NPPES.
Does Dr. John Merriam accept Medicare assignment?
Yes. Dr. John Merriam accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Merriam commonly perform?
Top Medicare-reported procedures in 2023: Established patient complete exam of visual system (HCPCS 92014); Imaging of retina (HCPCS 92134); Measurement of corneal curvature and depth of eye (HCPCS 92136). Source: CMS Medicare Physician & Other Practitioners file.