Doctor profile · Federal record
Dr. John Hammerer, O.D.
Optometrist (CMS: Optometry) · Coxsackie, NY
- NPI 1942498654
- Accepts Medicare
- 44 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
10A Ely St
Coxsackie, NY 120511216
(518) 731-9405 - Mailing address
-
83 Mansion St
Coxsackie, NY 120511216
Credentials & registration
- NPI registered
- October 2007 — 19 yrs on file
- Profile last updated
- September 4, 2008
- Year of graduation
- 1982 — 44 yrs since
- Specialty taxonomy
- 152W00000X — NUCC code
- State license (1)
- New York #VUT-4868
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1942498654. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
218
Distinct HCPCS
6
Medicare allowed
$20,623
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
92014 |
Established patient complete exam of visual system | 77 | 77 | $134 | |
92133 |
Imaging of optic nerve | 42 | 33 | $37 | |
92083 |
Exam of visual field with extended testing | 36 | 25 | $68 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 26 | 16 | $61 | |
92004 |
New patient complete exam of visual system | 20 | 20 | $154 | |
92012 |
Established patient problem focused exam of visual system | 17 | 17 | $97 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 36. This provider delivers 6.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
211
Patients
26
Total drug cost
$5,682
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Latanoprost | Generic | 143 | 26 | $1,830 |
| Timolol Maleate | Generic | 23 | 0 | $194 |
| Brimonidine Tartrate | Generic | 17 | 0 | $3,213 |
| Dorzolamide Hcl | Generic | 17 | 0 | $310 |
| Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) | Brand | 11 | 0 | $135 |
Frequently asked questions
What is Dr. John Hammerer's medical specialty?
Dr. John Hammerer practices Optometrist in Coxsackie, NY.
Where does Dr. John Hammerer practice?
Dr. John Hammerer practices at 10A Ely St, Coxsackie, NY 120511216. Office phone: 5187319405.
What is Dr. John Hammerer's NPI?
Dr. John Hammerer's National Provider Identifier (NPI) is 1942498654, issued by NPPES.
Does Dr. John Hammerer accept Medicare assignment?
Yes. Dr. John Hammerer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Hammerer commonly perform?
Top Medicare-reported procedures in 2023: Established patient complete exam of visual system (HCPCS 92014); Imaging of optic nerve (HCPCS 92133); Exam of visual field with extended testing (HCPCS 92083). Source: CMS Medicare Physician & Other Practitioners file.