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James N. Cohn, MD

Ophthalmology · Santa Clara

NPI 1043304173

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
Not verified
Not the same as out of network.
Offices
2

Offices

2 locations · Permanente Medical Group Inc · Neovision Eye Center A Medical

Looking this up.

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. Cohn’s office to ask if they take your plan before you enroll.

California Medical Board record

Licence G57505 · Current

Licensed to practise in California · since 1986 · expires 2028-01-31 · University of Chicago, Pritzker School of Medicine.

No disciplinary actions, convictions, malpractice judgments or citations in this record.

Original Medicare doctor bills

$113,500

Medicare paid this office $113,500 for 432 people.

This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.

Largest Original Medicare bills
Established patient complete exam of visual system252$26,211$82
Removal of cataract with insertion of prosthetic lens43$24,115$464
Return visit (30+ min)172$22,608$106
Short return visit (20+ min)128$14,105$76
Removal of cataract with insertion of prosthetic lens13$6,154$473
See all 11 services
Every Original Medicare service billed
Established patient complete exam of visual system252$26,211$82
Removal of cataract with insertion of prosthetic lens43$24,115$464
Return visit (30+ min)172$22,608$106
Short return visit (20+ min)128$14,105$76
Removal of cataract with insertion of prosthetic lens13$6,154$473
Removal of recurring cataract in lens capsule using a laser15$5,162$304
Imaging of optic nerve90$3,286$30
Imaging of retina64$2,279$35
New patient complete exam of visual system21$2,196$105
Ultrasound scan to determine eye length and lens power38$2,134$56
Exam of visual field with extended testing13$705$54

Procedures Medicare counted

Procedure volume Medicare published
Cataract surgery1-10None

Who their Medicare patients are

432 Original Medicare patients in 2024. Average age 77 · Women 64% · Also on Medicaid 18% · Health risk score 1.01. At or below the middle of the specialty; the typical ophthalmology clinician is at 1.16.

Conditions among them: High blood pressure 75% · Diabetes 37% · Chronic kidney disease 28% · Coronary heart disease 22% · Atrial fibrillation 14% · Cancer 13% · Heart failure 12% · COPD 12% · Depression 10% · Stroke 7% · Dementia 6%.

The office billed $454,819, Medicare allowed $165,015 and paid $113,500; for 1,078 services of 19 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

Original Medicare by year
20244321,078771.01$454,819$113,500
20235391,359771.03$513,896$149,833
20225831,519771.01$634,718$175,248
20215891,648771.06$541,209$161,724
20205871,527771.17$510,777$140,033
20198272,406771.19$837,630$244,802
20188532,600771.17$850,521$246,839
20177892,585771.21$821,799$239,148
20167521,985771.26$491,170$179,131
20158002,005771.22$573,605$196,828
20148942,331771.15$638,090$223,558
20139502,581771.21$779,270$260,894

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

2023: 12 services

Original Medicare services billed in 2023
Return visit (30+ min)219$43,730$105
Established patient complete exam of visual system346$40,609$109
Removal of cataract with insertion of prosthetic lens41$28,529$509
New patient complete exam of visual system67$7,897$118
Removal of recurring cataract in lens capsule using a laser15$5,582$328
Imaging of optic nerve123$5,392$33
Exam of visual field with extended testing47$2,757$59
Ultrasound scan to determine eye length and lens power42$2,752$63
Short return visit (20+ min)29$2,187$68
Imaging of retina54$2,108$38
New patient visit (45+ min)13$1,545$119
Photography of the retina23$828$35

2022: 12 services

Original Medicare services billed in 2022
Return visit (30+ min)246$54,463$112
Removal of cataract with insertion of prosthetic lens60$41,049$501
Established patient complete exam of visual system340$34,953$101
New patient complete exam of visual system98$12,533$128
Imaging of optic nerve148$6,825$34
Exam of visual field with extended testing77$4,850$58
Removal of recurring cataract in lens capsule using a laser13$4,579$305
Short return visit (20+ min)29$2,891$83
Ultrasound scan to determine eye length and lens power40$2,773$68
Imaging of retina37$1,351$35
Photography of the retina19$619$31
Ultrasound scan of cornea to determine thickness13$132$10

2021: 12 services

Original Medicare services billed in 2021
Return visit (30+ min)285$57,960$108
Established patient complete exam of visual system303$32,377$103
Removal of cataract with insertion of prosthetic lens38$24,356$518
Photography of the retina267$8,700$32
New patient complete exam of visual system60$6,899$115
Imaging of optic nerve140$6,071$35
Removal of recurring cataract in lens capsule using a laser15$4,923$328
New patient visit (45+ min)24$3,757$157
Exam of visual field with extended testing58$3,747$64
Short return visit (20+ min)29$2,140$74
Ultrasound scan to determine eye length and lens power29$1,944$67
Imaging of retina44$1,799$39

2020: 11 services

Original Medicare services billed in 2020
Return visit (30+ min)335$52,427$88
Removal of cataract with insertion of prosthetic lens38$21,517$525
Established patient complete exam of visual system177$18,392$104
Photography of the retina299$12,826$42
New patient complete exam of visual system58$7,068$122
Imaging of optic nerve114$4,709$32
Removal of recurring cataract in lens capsule using a laser11$3,432$312
Exam of visual field with extended testing59$3,318$54
Ultrasound scan to determine eye length and lens power30$2,022$67
Imaging of retina32$1,265$38
Short return visit (20+ min)28$1,170$40

2019: 13 services

Original Medicare services billed in 2019
Return visit (30+ min)508$93,820$91
Removal of cataract with insertion of prosthetic lens71$54,204$602
Established patient complete exam of visual system272$28,400$104
New patient complete exam of visual system131$16,137$123
Photography of the retina303$14,947$48
Exam of visual field with extended testing146$8,626$58
Imaging of optic nerve178$7,905$33
Removal of recurring cataract in lens capsule using a laser19$7,116$323
Ultrasound scan to determine eye length and lens power61$3,971$65
Imaging of retina34$1,318$37
Exam to measure eye deviation and range of motion14$976$57
Ct scan of cornea12$450$35
Ultrasound scan of cornea to determine thickness13$133$10

2018: 11 services

Original Medicare services billed in 2018
Return visit (30+ min)669$114,386$87
Removal of cataract with insertion of prosthetic lens61$46,940$587
Photography of the retina342$18,517$53
New patient complete exam of visual system115$14,214$124
Removal of recurring cataract in lens capsule using a laser27$10,888$311
Exam of visual field with extended testing160$9,557$58
Imaging of optic nerve176$7,279$33
Established patient complete exam of visual system83$6,609$80
Established patient problem focused exam of visual system39$5,410$77
Ultrasound scan to determine eye length and lens power39$2,848$69
Imaging of retina39$1,368$33

2017: 14 services

Original Medicare services billed in 2017
Return visit (30+ min)325$57,885$91
Established patient complete exam of visual system506$47,052$92
Removal of cataract with insertion of prosthetic lens68$45,518$562
Established patient problem focused exam of visual system191$26,408$74
Photography of the retina293$17,798$59
Exam of visual field with extended testing149$7,856$51
Removal of recurring cataract in lens capsule using a laser23$6,689$279
Imaging of optic nerve160$6,029$32
Ultrasound scan to determine eye length and lens power54$4,154$74
Short return visit (20+ min)92$3,213$32
New patient complete exam of visual system27$3,022$112
New patient visit (45+ min)27$2,744$102
Imaging of retina67$2,368$35
Ultrasound scan of cornea to determine thickness12$111$9

2016: 12 services

Original Medicare services billed in 2016
Removal of cataract with insertion of prosthetic lens64$43,213$561
Established patient complete exam of visual system452$36,729$80
Short return visit (20+ min)301$29,994$53
Photography of the retina277$20,410$71
Return visit (30+ min)151$14,158$83
Removal of recurring cataract in lens capsule using a laser30$9,976$293
Exam of visual field with extended testing160$8,711$50
New patient complete exam of visual system52$4,687$90
Ultrasound scan to determine eye length and lens power47$3,450$36
New patient visit (45+ min)15$2,009$134
New patient visit (30+ min)13$638$49
Ultrasound scan of cornea to determine thickness16$200$13

2015: 11 services

Original Medicare services billed in 2015
Removal of cataract with insertion of prosthetic lens92$59,447$561
Established patient complete exam of visual system523$45,829$87
Short return visit (20+ min)352$36,474$57
Photography of the retina252$18,715$73
Removal of recurring cataract in lens capsule using a laser25$8,149$291
Exam of visual field with extended testing134$7,253$52
Ultrasound scan to determine eye length and lens power74$5,509$38
New patient complete exam of visual system38$4,061$107
Return visit (30+ min)52$3,916$74
New patient visit (30+ min)18$1,270$71
Ultrasound scan of cornea to determine thickness13$164$13

2014: 11 services

Original Medicare services billed in 2014
Removal of cataract with insertion of prosthetic lens95$65,222$582
Established patient complete exam of visual system539$45,416$83
Short return visit (20+ min)420$43,446$55
Photography of the retina301$22,983$73
Exam of visual field with extended testing180$10,202$52
Removal of recurring cataract in lens capsule using a laser21$6,407$291
New patient complete exam of visual system64$6,398$100
Ultrasound scan to determine eye length and lens power80$6,140$39
Return visit (30+ min)63$5,406$83
New patient visit (30+ min)13$959$74
Ultrasound scan of cornea to determine thickness16$205$13

2013: 11 services

Original Medicare services billed in 2013
Removal of cataract with insertion of prosthetic lens117$84,918$578
Short return visit (20+ min)478$50,835$57
Established patient complete exam of visual system549$48,337$87
Photography of the retina318$22,049$66
Return visit (30+ min)95$8,794$88
Exam of visual field with extended testing154$8,722$54
Removal of recurring cataract in lens capsule using a laser25$8,155$302
Ultrasound scan to determine eye length and lens power114$7,872$36
New patient complete exam of visual system66$6,830$103
New patient visit (30+ min)11$855$78
Ultrasound scan of cornea to determine thickness23$290$13

Medicaid work

$0 in 2019

Medicaid paid $0 for 37 billed services this clinician did in 2019, up to 16 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.

Largest Medicaid services in 2019
XCAPSL CTRC RMVL INSJ IO LENS PROSTH W/O ECP18$0
Phenylephrine 10.16 mg/ml and ketorolac 2.88 mg/ml ophthalmic irrigation solution, 1 ml19$0
Medicaid work by year
201937216$0

Drugs they prescribed that Part D paid

$67,945

Pharmacies billed $67,945 in 2024.

This is pharmacy cost, not the office bill, and not what patients paid.

Opioids were 0% of their Part D prescriptions (0 of 1,109) in 2024. At or below the middle of the specialty; the typical ophthalmology clinician is at 0%.

618 generic and 491 brand-name prescriptions · $67,945 in drug cost.

Part D prescriptions only. The opioid rate is opioid prescriptions as a share of all this clinician's Part D prescriptions; surgeons and pain specialists run higher than others, so it is shown against the same specialty.

Largest Part D drug costs
Rhopressa25$7,818$313
Lumigan19$5,138$270
Travoprost28$4,807$172
Prednisolone Acetate150$4,170$28
Brinzolamide24$4,161$173
See all 13 drugs
Every Part D drug this clinician prescribed
Rhopressa25$7,818$313
Lumigan19$5,138$270
Travoprost28$4,807$172
Prednisolone Acetate150$4,170$28
Brinzolamide24$4,161$173
Latanoprost376$3,877$10
Brimonidine27$3,152$117
Timolol Maleate171$1,857$11
Ketorolac Tromethamine76$1,242$16
Ofloxacin83$773$9
Dorzolamide-Timolol25$352$14
Dorzolamide20$316$16
Neomycin-Polymyxin-Dexameth15$147$10

Year by year

Part D prescribing by year
20241,1092210% (0)44%$67,945
20231,1632260% (0)47%$91,826
20221,3622270% (0)45%$95,032
20211,175211None54%$112,323
20201,1372150% (0)48%$120,387
20191,2552460% (0)44%$145,466
20181,403249None46%$140,102
20171,434266None44%$126,349
20161,371271None44%$110,603
20151,4042770% (0)46%$122,752
20141,515301None44%$109,711
20131,736336None53%$129,455

Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.

See the drugs prescribed each year

2023: 14 drugs

Part D drugs prescribed in 2023
Restasis12$17,933$1,494
Rhopressa36$13,178$366
Latanoprost437$6,855$16
Travoprost28$6,462$231
Brinzolamide12$5,272$439
Lumigan18$4,761$265
Azopt12$4,646$387
Prednisolone Acetate126$4,400$35
Timolol Maleate192$2,902$15
Ketorolac Tromethamine61$1,429$23
Ofloxacin78$1,127$14
Brimonidine12$794$66
Dorzolamide-Timolol31$514$17
Neomycin-Polymyxin-Dexameth13$150$12

2022: 15 drugs

Part D drugs prescribed in 2022
Restasis16$18,346$1,147
Rhopressa25$8,920$357
Latanoprost511$8,023$16
Azopt21$7,928$378
Lumigan17$6,009$353
Prednisolone Acetate174$5,778$33
Combigan14$5,261$376
Travoprost18$4,989$277
Brimonidine22$4,319$196
Timolol Maleate223$3,088$14
Ketorolac Tromethamine91$2,459$27
Ofloxacin101$1,178$12
Dorzolamide-Timolol25$441$18
Sulfacetamide-Prednisolone18$262$15
Dorzolamide13$172$13

2021: 13 drugs

Part D drugs prescribed in 2021
Restasis26$30,468$1,172
Rhopressa33$13,559$411
Azopt24$8,657$361
Latanoprost478$8,237$17
Travoprost30$7,249$242
Combigan22$6,685$304
Lumigan25$6,571$263
Brimonidine30$4,567$152
Prednisolone Acetate95$4,306$45
Timolol Maleate182$2,405$13
Ketorolac Tromethamine49$1,307$27
Ofloxacin70$992$14
Dorzolamide-Timolol21$689$33

2020: 17 drugs

Part D drugs prescribed in 2020
Restasis28$27,892$996
Pazeo29$14,154$488
Travatan Z34$12,117$356
Latanoprost423$7,302$17
Azopt21$7,056$336
Travoprost16$5,589$349
Combigan17$5,181$305
Durezol26$5,158$198
Brimonidine50$4,290$86
Lumigan15$3,956$264
Ilevro12$3,491$291
Prednisolone Acetate72$2,761$38
Timolol Maleate175$2,587$15
Ofloxacin66$902$14
Moxifloxacin20$693$35
Ketorolac Tromethamine28$675$24
Dorzolamide15$533$36

2019: 18 drugs

Part D drugs prescribed in 2019
Restasis38$41,769$1,099
Travatan Z51$16,758$329
Pazeo41$14,928$364
Durezol63$12,272$195
Ilevro35$9,743$278
Latanoprost450$8,495$19
Alphagan P12$5,681$473
Combigan18$4,798$267
Rhopressa14$4,614$330
Olopatadine16$2,942$184
Timolol Maleate188$2,088$11
Moxifloxacin52$1,880$36
Prednisolone Acetate53$1,824$34
Brimonidine37$1,778$48
Dorzolamide31$988$32
Ofloxacin49$815$17
Dorzolamide-Timolol12$655$55
Ketorolac Tromethamine13$228$18

2018: 19 drugs

Part D drugs prescribed in 2018
Restasis61$40,537$665
Travatan Z76$18,204$240
Pazeo43$12,776$297
Azopt31$10,797$348
Durezol53$9,333$176
Latanoprost489$8,451$17
Ilevro25$6,450$258
Combigan18$6,239$347
Alphagan P24$5,740$239
Brimonidine60$3,597$60
Prednisolone Acetate67$2,935$44
Timolol Maleate210$1,985$9
Moxifloxacin49$1,904$39
Pilocarpine16$1,184$74
Olopatadine13$978$75
Ofloxacin51$886$17
Dorzolamide-Timolol19$512$27
Dorzolamide13$323$25
Levobunolol15$185$12

2017: 20 drugs

Part D drugs prescribed in 2017
Restasis34$18,026$530
Travatan Z62$13,827$223
Durezol68$11,182$164
Pazeo52$9,800$188
Ilevro41$9,745$238
Latanoprost474$8,580$18
Azopt28$8,093$289
Alphagan P21$5,903$281
Prednisolone Acetate102$4,237$42
Combigan17$4,226$249
Vigamox25$3,888$156
Pataday19$3,773$199
Brimonidine46$3,196$69
Timolol Maleate193$2,334$12
Moxifloxacin20$1,864$93
Pilocarpine20$1,642$82
Dorzolamide-Timolol30$1,158$39
Ofloxacin65$1,063$16
Ketorolac Tromethamine31$575$19
Dorzolamide16$427$27

2016: 18 drugs

Part D drugs prescribed in 2016
Travatan Z65$14,543$224
Restasis22$12,096$550
Azopt39$10,163$261
Durezol64$9,911$155
Combigan53$9,148$173
Latanoprost492$8,190$17
Ilevro25$5,693$228
Vigamox36$5,440$151
Pataday30$4,710$157
Pazeo25$4,371$175
Prednisolone Acetate84$3,452$41
Alphagan P19$3,144$165
Timolol Maleate173$2,803$16
Simbrinza17$2,604$153
Brimonidine47$2,090$44
Ofloxacin62$1,164$19
Dorzolamide-Timolol30$1,128$38
Sulfacetamide-Prednisolone14$214$15

2015: 18 drugs

Part D drugs prescribed in 2015
Travatan Z90$21,011$233
Azopt54$14,324$265
Ilevro56$12,602$225
Restasis15$9,533$636
Combigan57$8,677$152
Vigamox62$8,425$136
Latanoprost478$6,901$14
Pataday36$6,098$169
Durezol38$5,790$152
Brimonidine50$4,968$99
Patanol15$3,588$239
Alphagan P16$3,424$214
Simbrinza19$2,884$152
Lumigan13$2,305$177
Timolol Maleate209$2,169$10
Prednisolone Acetate38$2,096$55
Dorzolamide-Timolol43$933$22
Ofloxacin45$745$17

2014: 20 drugs

Part D drugs prescribed in 2014
Travatan Z109$20,066$184
Ilevro58$10,118$174
Latanoprost512$8,905$17
Azopt46$8,874$193
Vigamox69$7,711$112
Restasis13$7,590$584
Combigan55$6,540$119
Alphagan P32$6,523$204
Lumigan25$4,577$183
Brimonidine27$4,287$159
Durezol33$4,285$130
Pataday19$3,202$169
Dorzolamide-Timolol72$3,191$44
Prednisolone Acetate47$2,499$53
Timolol Maleate235$2,222$9
Blephamide12$1,108$92
Ofloxacin37$458$12
Acyclovir17$372$22
Levobunolol12$261$22
Cromolyn11$97$9

2013: 18 drugs

Part D drugs prescribed in 2013
Travatan Z144$25,028$174
Nevanac75$12,290$164
Vigamox116$11,647$100
Latanoprost511$10,755$21
Alphagan P63$10,116$161
Azopt57$7,849$138
Brimonidine45$5,848$130
Combigan51$5,087$100
Durezol43$4,753$111
Pataday33$4,600$139
Lumigan24$4,054$169
Ilevro25$3,650$146
Timolol Maleate231$2,793$12
Dorzolamide-Timolol70$2,572$37
Prednisolone Acetate80$1,652$21
Pilocarpine18$1,264$70
Ofloxacin37$303$8
Cromolyn14$221$16

Money from drug and device companies

$19 in 2025

Industry payments by year
202511None$19
202411None$26
202333None$61
202233None$82
201922None$46

Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.

A payment is not proof that care is biased.

Payments by company
Tarsus PharmaceuticalsXdemvy$19
1 payment
  • Meals for Xdemvy · 2025-01-17 · $19
See the published payment
Every published payment
Tarsus PharmaceuticalsMeals · 2025-01-17Xdemvy$19
See earlier years (2024, 2023, 2022, 2019)

2024: $26

Payments by company in 2024
AbbvieLumigan$26
1 payment
  • Meals for Lumigan · 2024-08-28 · $26

2023: $61

Payments by company in 2023
ANI PharmaceuticalsPurified Cortrophin Gel$23
1 payment
  • Meals for Purified Cortrophin Gel · 2023-11-01 · $23
GlaukosNone$20
1 payment
  • Meals · 2023-09-11 · $20
OptosNfc-700$18
1 payment
  • Entertainment for Nfc-700 · 2023-03-15 · $18

2022: $82

Payments by company in 2022
GlaukosIstent Inject W$43
1 payment
  • Meals for Istent Inject W · 2022-12-21 · $43
AllerganVuity$21
1 payment
  • Meals for Vuity · 2022-03-11 · $21
Oyster Point PharmaTyrvaya$18
1 payment
  • Meals for Tyrvaya · 2022-10-28 · $18

2019: $46

Payments by company in 2019
Mallinckrodt EnterprisesActhar$28
1 payment
  • Meals for Acthar · 2019-08-15 · $28
Horizon Therapeutics plcNone$19
1 payment
  • Meals · 2019-11-20 · $19

Checkups this office reported

Medicare did not publish checkup rates for this clinician.

Medicare’s overall office score
3.1 / 100
Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.

Professional record

NPI
1043304173
Licence
CA G57505California G57505: Current · expires 2028-01-31
Trained
University of Chicago, Pritzker School of Medicine, 1982
Group
Permanente Medical Group Inc · Neovision Eye Center A Medical
Gender
Male
More record details
Sole proprietor
No
Medicaid ID
CA 1891025813
Taxonomy
Federal specialty code 207W00000X (207W00000X)
Mailing address
3775 Beacon Ave, Suite 140, Fremont, CA, 94538
NPI first listed
2006-10-03
NPI last updated
2023-12-19
NPI record certified
2023-12-19

This is when the NPI record was last certified, not a medical board exam.

This office lists an electronic records connection.