Doctor profile · Federal record
Dr. Gregory Tom, O.D.
Corneal and Contact Management Optometrist (CMS: Optometry) · Low Vision Rehabilitation Optometrist · Vision Therapy Optometrist · Pediatric Optometrist · Sports Vision Optometrist · San Ramon, CA
- NPI 1124245568
- Accepts Medicare
- 32 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
202 Aspenwood CT # 1
San Ramon, CA 945825028
(510) 206-8152 - Mailing address
-
202 Aspenwood CT.
San Ramon, CA 94582
Credentials & registration
- NPI registered
- April 2007 — 19 yrs on file
- Profile last updated
- August 24, 2009
- Year of graduation
- 1994 — 32 yrs since
- Specialty taxonomy
- 152WC0802X — NUCC code
- State license (1)
- California #10427T
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1124245568. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
818
Distinct HCPCS
10
Medicare allowed
$73,898
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
92012 |
Established patient problem focused exam of visual system | 451 | 120 | $112 | |
92134 |
Imaging of retina | 77 | 51 | $50 | |
92083 |
Exam of visual field with extended testing | 57 | 38 | $80 | |
92133 |
Imaging of optic nerve | 57 | 38 | $42 | |
92250 |
Photography of the retina | 51 | 51 | $46 | |
92014 |
Established patient complete exam of visual system | 38 | 38 | $157 | |
92020 |
Exam of the internal drainage system of eye | 28 | 24 | $34 | |
67820 |
Removal of eyelashes using forceps | 23 | 15 | $22 | |
76514 |
Ultrasound scan of cornea to determine thickness | 23 | 23 | $13 | |
92004 |
New patient complete exam of visual system | 13 | 13 | $185 |
In context: peer comparison
Among 1 peers in San Ramon Corneal and Contact Management Optometrist, average services per provider: 81. This provider delivers 10× the peer median.Open Payments
Industry payments received
All-time total
$3,578
Transactions
14
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| CooperVision INC. | 6 | $2,742.85 | |
| Lumenis Be INC | 1 | $606.43 | |
| Johnson & Johnson Vision Care, INC. | 7 | $228.24 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
109
Patients
27
Total drug cost
$1,734
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Latanoprost | Generic | 57 | 15 | $1,062 |
| Timolol Maleate | Generic | 22 | 0 | $374 |
| Doxycycline Hyclate | Generic | 15 | 0 | $70 |
| Neomycin-Polymyxin-Dexameth (Neomycin/Polymyxin B/Dexametha) | Brand | 15 | 12 | $228 |
Frequently asked questions
What is Dr. Gregory Tom's medical specialty?
Dr. Gregory Tom practices Corneal and Contact Management Optometrist in San Ramon, CA.
Where does Dr. Gregory Tom practice?
Dr. Gregory Tom practices at 202 Aspenwood CT # 1, San Ramon, CA 945825028. Office phone: 5102068152.
What is Dr. Gregory Tom's NPI?
Dr. Gregory Tom's National Provider Identifier (NPI) is 1124245568, issued by NPPES.
Does Dr. Gregory Tom accept Medicare assignment?
Yes. Dr. Gregory Tom accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Tom commonly perform?
Top Medicare-reported procedures in 2023: Established patient problem focused exam of visual system (HCPCS 92012); Imaging of retina (HCPCS 92134); Exam of visual field with extended testing (HCPCS 92083). Source: CMS Medicare Physician & Other Practitioners file.