Corey G Preston, OD
Optometry · Palm Desert
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- Not verified
- Not the same as out of network.
- Office
- 1
Offices
1 location · Iseeu Optometry · 3 clinicians in this group
Plan participation
Not verified
We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Dr. Preston’s office at (760) 341-6324 to ask if they take your plan before you enroll.
Original Medicare doctor bills
$1,384
Medicare paid this office $1,384 for 12 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
Who their Medicare patients are
12 Original Medicare patients in 2024. Average age 76 · Under 65 0% · 85 and older 0% · Also on Medicaid 0% · Health risk score 0.62. At or below the middle of the specialty; the typical optometry clinician is at 0.97.
The office billed $1,928, Medicare allowed $1,738 and paid $1,384; for 12 services of 2 kinds.
Original Medicare patients only. A risk score of 1.0 is the average Medicare patient; higher means sicker. Any count under 11 is hidden.
Year by year
| 2024 | 12 | 12 | 76 | 0.62 | $1,928 | $1,384 |
| 2019 | 62 | 91 | 74 | 0.78 | $27,602 | $2,840 |
| 2018 | 386 | 819 | 75 | 1.00 | $228,513 | $54,227 |
| 2017 | 556 | 1,299 | 75 | 0.94 | $349,178 | $83,157 |
| 2016 | 67 | 106 | 76 | 0.82 | $30,659 | $8,155 |
| 2015 | 22 | 37 | 74 | 1.03 | $11,971 | $3,242 |
| 2014 | 364 | 803 | 74 | 0.98 | $221,669 | $53,102 |
| 2013 | 205 | 416 | 73 | 1.10 | $115,331 | $31,096 |
Original Medicare only. A service billed for fewer than 11 people in a year is hidden, so the lines can add up to less than the year's total.
See the services billed each year
2019: 3 services
| Imaging of optic nerve | 17 | $503 | $30 |
| Established patient complete exam of visual system | 12 | $404 | $34 |
| Short return visit (20+ min) | 15 | $203 | $12 |
2018: 11 services
| New patient complete exam of visual system | 116 | $13,045 | $112 |
| Short return visit (20+ min) | 127 | $10,716 | $58 |
| Established patient complete exam of visual system | 78 | $8,141 | $103 |
| Return visit (30+ min) | 66 | $5,912 | $88 |
| Imaging of optic nerve | 121 | $4,392 | $36 |
| Exam of visual field with extended testing | 63 | $4,358 | $60 |
| New patient visit (30+ min) | 35 | $2,525 | $72 |
| New patient visit (45+ min) | 11 | $1,499 | $136 |
| Photography of the retina | 18 | $954 | $53 |
| Exam of the internal drainage system of eye | 35 | $859 | $24 |
| Ultrasound scan of cornea to determine thickness | 57 | $805 | $14 |
2017: 11 services
| New patient complete exam of visual system | 177 | $21,060 | $119 |
| Short return visit (20+ min) | 191 | $18,049 | $61 |
| Established patient complete exam of visual system | 86 | $8,202 | $95 |
| Exam of visual field with extended testing | 98 | $7,139 | $59 |
| New patient visit (30+ min) | 80 | $6,210 | $78 |
| Return visit (30+ min) | 81 | $5,881 | $71 |
| Imaging of optic nerve | 169 | $5,787 | $34 |
| New patient visit (45+ min) | 28 | $3,149 | $112 |
| Photography of the retina | 48 | $3,076 | $64 |
| Exam of the internal drainage system of eye | 70 | $1,722 | $24 |
| Ultrasound scan of cornea to determine thickness | 97 | $1,295 | $13 |
2016: 4 services
| Established patient complete exam of visual system | 23 | $2,293 | $100 |
| New patient complete exam of visual system | 14 | $1,810 | $129 |
| Short return visit (20+ min) | 17 | $1,100 | $61 |
| Imaging of optic nerve | 15 | $641 | $43 |
2015: 1 service
| New patient complete exam of visual system | 12 | $1,632 | $136 |
2014: 13 services
| New patient complete exam of visual system | 136 | $16,337 | $120 |
| Established patient complete exam of visual system | 93 | $9,012 | $97 |
| Short return visit (20+ min) | 97 | $6,462 | $58 |
| Photography of the retina | 48 | $3,859 | $77 |
| Exam of visual field with extended testing | 58 | $3,691 | $57 |
| Imaging of optic nerve | 82 | $3,452 | $42 |
| Short return visit | 61 | $2,412 | $34 |
| New patient visit (30+ min) | 19 | $1,591 | $84 |
| Imaging of retina | 25 | $1,053 | $42 |
| Ultrasound scan of cornea to determine thickness | 68 | $916 | $13 |
| Exam of the internal drainage system of eye | 33 | $853 | $25 |
| Established patient problem focused exam of visual system | 12 | $801 | $67 |
| Imaging of front third of eye | 12 | $411 | $34 |
2013: 9 services
| Established patient complete exam of visual system | 71 | $8,409 | $118 |
| New patient complete exam of visual system | 58 | $8,068 | $139 |
| Short return visit (20+ min) | 48 | $3,311 | $68 |
| Short return visit | 57 | $2,870 | $42 |
| Photography of the retina | 22 | $1,650 | $72 |
| Exam of visual field with extended testing | 21 | $1,559 | $62 |
| Imaging of optic nerve | 36 | $1,529 | $42 |
| Imaging of retina | 20 | $883 | $44 |
| Ultrasound scan of cornea to determine thickness | 26 | $347 | $13 |
Medicaid work
$111 in 2024
Medicaid paid $111 for 14 billed services this clinician did in 2024, up to 14 people in a month for one service.
Medicaid and CHIP claims where this clinician did the service, fee-for-service and managed care together. Any month with fewer than 11 patients is hidden, so small Medicaid practices undercount.
| DETERMINATION REFRACTIVE STATE | 14 | $111 |
| 2024 | 14 | 1 | 14 | $111 |
Money from drug and device companies
$67 in 2023
| 2023 | 2 | 3 | None | $67 |
| 2022 | 3 | 5 | None | $182 |
| 2021 | 4 | 5 | None | $131 |
| 2019 | 3 | 4 | None | $124 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Johnson & Johnson Vision Care | Acuvue | $52 | 2 payments
|
| CooperVision | Myday Contact Lens | $15 | 1 payment
|
See all 3 published payments
| CooperVision | Meals · 2023-10-11 | Myday Contact Lens | $15 |
| Johnson & Johnson Vision Care | Meals · 2023-08-30 | Acuvue | $36 |
| Johnson & Johnson Vision Care | Meals · 2023-02-16 | Acuvue | $16 |
See earlier years (2022, 2021, 2019)
2022: $182
| CooperVision | Myday Contact Lens | $99 | 2 payments
|
| Alcon Vision | Precision 1 | $51 | 2 payments
|
| Johnson & Johnson Vision Care | Acuvue | $33 | 1 payment
|
2021: $131
| Johnson & Johnson Vision Care | Acuvue | $59 | 2 payments
|
| CooperVision | Myday Contact Lens | $44 | 1 payment
|
| Alcon Vision | Precision 1 | $16 | 1 payment
|
| Bausch & Lomb a division of Bausch Health US | Biotrue One Day | $12 | 1 payment
|
2019: $124
| CooperVision | Clariti Contact Lens | $59 | 1 payment
|
| Johnson & Johnson Vision Care | Acuvue | $41 | 2 payments
|
| Alcon Vision | Dailies | $23 | 1 payment
|
Professional record
- NPI
- 1679533681
- Licence
- CA OPT11523, NY TUV006337-1
- Trained
- New England College of Optometry, 2000
- Group
- Iseeu Optometry
- Gender
- Male
More record details
- Sole proprietor
- No
- Taxonomy
- Federal specialty code 152W00000X (152W00000X)
- Mailing address
- 2350 W. El Camino Real, 2nd Floor, Mountain View, CA, 94040
- NPI first listed
- 2006-03-24
- NPI last updated
- 2016-09-14
This is when the NPI record was last certified, not a medical board exam.