WILLIAM OH (M.D.) – Colon & Rectal Surgery Physician, NPI 1598100323
Colon & Rectal Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
251 COLORECTAL SURGERY (PROCTOLOGY) in CA
Provider Addresses for WILLIAM OH (M.D.)
PO BOX 781076
DETROIT, MI 482781076
Phone: (317) 528-4800
Type: Mailing
16405 SAND CANYON AVE STE 280
IRVINE, CA 926183792
Phone: (949) 557-0370
Fax: (949) 557-0370
Type: Location
155 N Fresno St
Fresno, CA 937012302
Phone: (559) 499-6400
Type: Location
1215 HADLEY RD STE 201
MOORESVILLE, IN 46158
Phone: (317) 834-2020
Fax: (317) 831-9292
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 6 Open Payments records for all available years, with a total value of $242.
Total Amount is formed as General ($242) + Research ($0) + Ownership ($0) = $242.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($170).
Total Amount
$242
General + Research + Ownership
Payments
6
Total payment records
General Amount
$242
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $170 |
| QOL Medical, LLC | $29 |
| Janssen Biotech, Inc. | $29 |
| Vioptix Inc | $14 |
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: 2021-10-25
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20190927001873 | I | Colorectal Surgery (Proctology) | CA | TBD |
| I20211025003116 | I | General Surgery | WA | 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 |
|---|---|---|---|---|
| 46600 | Diagnostic exam of anus using an endoscope | 18 | 18 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 18 | 18 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 17 | 15 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 16 | 16 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 15 | 13 | $0 |
Insurance plans in this area (ZIP 48278)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| O B S T E T R I C S/ G Y N E C O L O G Y | CA | |
| Family Practice | CA | |
| Family Practice | VA | |
| General Surgery | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CA | |
| Family Practice | CA | |
| Physician Assistant | CA | |
| Physician Assistant | CA |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.