DR. ANN KATHERINE WILLIAMS MD (M.D.) – Ophthalmology Physician, NPI 1043216732
Ophthalmology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
328 OPHTHALMOLOGY in IN
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Provider Addresses for DR. ANN KATHERINE WILLIAMS MD (M.D.)
6850, Hohman Avenue, Forest-Ivanhoe Historic District, Hammond, Lake County, Indiana, 46324, United States
HAMMOND, IN 463241410
Phone: (219) 931-7509
Type: Mailing
6836 Hohman Ave
Hammond, IN 463241410
Phone: (219) 937-5063
Fax: (219) 937-5068
Type: Location
9797 Massachusetts St
Crown Point, IN 463070278
Phone: (219) 649-2704
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 45 Open Payments records for all available years, with a total value of $1,846.
Total Amount is formed as General ($1,846) + Research ($0) + Ownership ($0) = $1,846.
Last reported payment date: 2024-12-16 • Largest payer in this snapshot: Johnson & Johnson Surgical Vision, Inc. ($658).
Total Amount
$1,846
General + Research + Ownership
Payments
45
Total payment records
General Amount
$1,846
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Johnson & Johnson Surgical Vision, Inc. | $658 |
| Harrow Eye, LLC | $360 |
| Bausch & Lomb Americas Inc. | $188 |
| RxSight Inc | $131 |
| ABBVIE INC. | $97 |
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: 2010-07-12
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 |
|---|---|---|---|---|
| I20100712000401 | I | Ophthalmology | IN | 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 |
|---|---|---|---|---|
| 92014 | Established patient complete exam of visual system | 1,114 | 1,071 | $0 |
| 66984 | Removal of cataract with insertion of prosthetic lens | 466 | 244 | $0 |
| 92136 | Measurement of corneal curvature and depth of eye | 461 | 287 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 280 | 219 | $0 |
| 92133 | Imaging of optic nerve | 188 | 187 | $0 |
Insurance plans in this area (ZIP 46324)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| O P T O M E T R Y | IN | |
| O P H T H A L M O L O G Y | IN | |
| O P H T H A L M O L O G Y | IN | |
| O P H T H A L M O L O G Y | IN | |
| O P H T H A L M O L O G Y | IN |
Reviews
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