DAVID SOLOMON DE GUZMAN CHUA – Internal Medicine Physician, NPI 1023268646
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
109 NEPHROLOGY in IA
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Provider Addresses for DAVID SOLOMON DE GUZMAN CHUA
1111 11TH ST
HAWARDEN, IA 510231903
Phone: (712) 551-3100
Type: Mailing
600, 4th Street, Little Sioux, Harrison County, Iowa, 51545, United States
SUITE 103
SIOUX CITY, IA 511011415
Phone: (712) 255-7746
Type: Mailing
1122 AVENUE L
HAWARDEN, IA 510231928
Phone: (712) 551-3400
Fax: (712) 551-2691
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 31 Open Payments records for all available years, with a total value of $489.
Total Amount is formed as General ($489) + Research ($0) + Ownership ($0) = $489.
Last reported payment date: 2024-12-19 • Largest payer in this snapshot: Astellas Pharma US Inc ($121).
Total Amount
$489
General + Research + Ownership
Payments
31
Total payment records
General Amount
$489
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Astellas Pharma US Inc | $121 |
| Bayer Healthcare Pharmaceuticals Inc. | $81 |
| Mylan Specialty L.P. | $68 |
| Lilly USA, LLC | $46 |
| Amgen Inc. | $35 |
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: 2013-08-21
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 |
|---|---|---|---|---|
| I20130821000463 | I | Internal Medicine | IA | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 38 | 26 | $0 |
| 99238 | Hospital discharge day management, 30 minutes or less | 24 | 24 | $0 |
| 99307 | Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes | 24 | 11 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 18 | 17 | $0 |
| 99308 | Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 16 | 11 | $0 |
Insurance plans in this area (ZIP 51023)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | IA | |
| Nurse Practitioner | IA | |
| Physician Assistant | IA | |
| Nurse Practitioner | IA | |
| Family Practice | IA | |
| Nurse Practitioner | IA | |
| Physician Assistant | IA | |
| General Practice | IA | |
| Nurse Practitioner | NE | |
| Nurse Practitioner | IA |
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