DR. KEN NGUYEN (D.O.) – Emergency Medicine Physician, NPI 1851351894
Emergency Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
13,194 FAMILY PRACTICE in CA
Provider Addresses for DR. KEN NGUYEN (D.O.)
PO BOX 35380
LAS VEGAS, NV 891335380
Phone:
Type: Mailing
1700 N Waterman Ave
San Bernardino, CA 924045115
Phone: (909) 883-8611
Type: Location
1851 N RIVERSIDE AVE
RIALTO, CA 923768069
Phone: (909) 874-2371
Type: Location
PO BOX 12209
SAN BERNARDINO, CA 924232209
Phone: (909) 335-4188
Type: Mailing
8110, Mango Avenue, Fontana, San Bernardino County, California, 92335, United States
FONTANA, CA 923353603
Phone: (909) 822-1164
Fax: (909) 357-2235
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 $110.
Total Amount is formed as General ($110) + Research ($0) + Ownership ($0) = $110.
Last reported payment date: 2024-10-09 • Largest payer in this snapshot: Janssen Biotech, Inc. ($110).
Total Amount
$110
General + Research + Ownership
Payments
6
Total payment records
General Amount
$110
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-09
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Janssen Biotech, Inc. | $110 |
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: 2005-06-30
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 |
|---|---|---|---|---|
| I20050630001175 | I | Family Practice | CA | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 103 | 87 | $0 |
| 81003 | Automated urinalysis test | 31 | 30 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 26 | 26 | $0 |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 13 | 11 | $0 |
| 96372 | Injection of drug or substance under skin or into muscle | 11 | 11 | $0 |
Insurance plans in this area (ZIP 89133)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | NV | |
| Family Practice | CA | |
| - | CA | |
| General Practice | NV | |
| Internal Medicine | CA | |
| Family Practice | CA | |
| - | CA | |
| - | CA | |
| Internal Medicine | CA | |
| Family Practice | 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.