HUIWEN CHEN (MD) – Internal Medicine Physician, NPI 1134539612
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
738 NEPHROLOGY in PA
Provider Addresses for HUIWEN CHEN (MD)
3400 SPRUCE ST
1ST FLOOR FOUNDERS, RENAL STE
PHILADELPHIA, PA 191044238
Phone: (215) 662-2638
Fax: (215) 349-5703
Type: Mailing
3 ERIE CT STE L700
OAK PARK, IL 603022519
Phone: (708) 763-1222
Fax: (708) 763-1471
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $32.
Total Amount is formed as General ($32) + Research ($0) + Ownership ($0) = $32.
Last reported payment date: 2024-06-04 • Largest payer in this snapshot: Medtronic, Inc. ($32).
Total Amount
$32
General + Research + Ownership
Payments
2
Total payment records
General Amount
$32
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-06-04
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Medtronic, Inc. | $32 |
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: 2019-07-10
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 |
|---|---|---|---|---|
| I20190710000011 | I | Nephrology | PA | 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 |
|---|---|---|---|---|
| 90935 | Hemodialysis procedure with physician evaluation | 250 | 118 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 229 | 115 | $0 |
| 90999 | Other inpatient or outpatient dialysis procedure | 215 | 50 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 176 | 81 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 85 | 82 | $0 |
Insurance plans in this area (ZIP 19104)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | PA | |
| Pulmonary Disease | PA | |
| Critical Care (Intensivists), Internal Medicine, Pulmonary Disease | PA | |
| Nurse Practitioner | PA | |
| - | PA | |
| - | PA | |
| Emergency Medicine | PA | |
| Nurse Practitioner | PA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | PA | |
| Nurse Practitioner | PA |
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