DR. NICHOLAS KARJUN CHAN (M.D.) – Ophthalmology Physician, NPI 1396132403
Ophthalmology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
958 OPHTHALMOLOGY in IL
Provider Addresses for DR. NICHOLAS KARJUN CHAN (M.D.)
1760 W Wise Rd
Schaumburg, IL 601933524
Phone: (708) 636-9393
Fax: (708) 636-2022
Type: Location
259 E ERIE ST STE 1520
CHICAGO, IL 606113111
Phone: (312) 695-8150
Fax: (312) 695-3652
Type: Mailing
259 E Erie St Ste 1520
Chicago, IL 606113111
Phone: (312) 695-8150
Fax: (312) 695-3652
Type: Location
100 Woodruff Cir NE
Suite 327
Atlanta, GA 303221020
Phone: (404) 727-5658
Type: Location
14494 John Humphrey Dr
Orland Park, IL 604622638
Phone: (708) 226-9393
Fax: (708) 403-5751
Type: Location
4459 N Kedzie Ave
Chicago, IL 606254785
Phone: (773) 866-2020
Fax: (773) 866-2022
Type: Location
68 W Dundee Rd
Buffalo Grove, IL 600893758
Phone: (847) 541-3334
Fax: (847) 541-8442
Type: Location
17W682 Butterfield Rd
Oakbrook Terrace, IL 601814029
Phone: (708) 636-9393
Fax: (708) 636-2022
Type: Location
6201 W 95TH ST
OAK LAWN, IL 604533888
Phone: (086) 369-3937
Fax: (708) 636-2022
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 64 Open Payments records for all available years, with a total value of $1,956.
Total Amount is formed as General ($1,956) + Research ($0) + Ownership ($0) = $1,956.
Last reported payment date: 2024-12-31 • Largest payer in this snapshot: Mallinckrodt Hospital Products Inc. ($465).
Total Amount
$1,956
General + Research + Ownership
Payments
64
Total payment records
General Amount
$1,956
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-31
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Mallinckrodt Hospital Products Inc. | $465 |
| Alcon Vision LLC | $314 |
| Harrow Eye, LLC | $245 |
| Bausch & Lomb Americas Inc. | $168 |
| Sight Sciences, Inc. | $148 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2020-07-30
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20200730003612 | I | Ophthalmology | IL | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 335 | 218 | $0 |
| 92250 | Photography of the retina | 141 | 125 | $0 |
| 66982 | Complex removal of cataract with insertion of prosthetic lens | 133 | 94 | $0 |
| 67028 | Injection of drug into eye | 123 | 28 | $0 |
| J9035 | Injection, bevacizumab, 10 mg | 121 | 28 | $0 |
Insurance plans in this area (ZIP 60193)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| O P T O M E T R Y | IL | |
| O P T O M E T R Y | IL | |
| O P T O M E T R Y | IL | |
| O P T O M E T R Y | IL | |
| O P T O M E T R Y | IL | |
| O P T O M E T R Y | IL | |
| O P T O M E T R Y | IL | |
| O P H T H A L M O L O G Y | IL | |
| O P T O M E T R Y | IL | |
| O P H T H A L M O L O G Y | IL |
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