DR. AARON CHEN (D.O.) – Internal Medicine Physician, NPI 1093973786
Internal Medicine Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
1,289 INTERNAL MEDICINE in KS
Provider Addresses for DR. AARON CHEN (D.O.)
1201 W 12th Ave
Emporia, KS 668012504
Phone: (620) 343-6800
Fax: (620) 341-7821
Type: Location
1000 Hospital Dr
McPherson, KS 674602326
Phone: (620) 241-2250
Fax: (620) 798-2630
Type: Location
2350, Phillips Road, Tallahassee, Leon County, Florida, 32308, United States
TALLAHASSEE, FL 323085346
Phone:
Type: Mailing
Capital Regional Medical Center, 2626, Capital Medical Boulevard, Tallahassee, Leon County, Florida, 32308, United States
TALLAHASSEE, FL 323084402
Phone: (850) 325-5000
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 38 Open Payments records for all available years, with a total value of $863.
Total Amount is formed as General ($863) + Research ($0) + Ownership ($0) = $863.
Last reported payment date: 2024-11-15 • Largest payer in this snapshot: ABBVIE INC. ($282).
Total Amount
$863
General + Research + Ownership
Payments
38
Total payment records
General Amount
$863
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-15
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $282 |
| PFIZER INC. | $182 |
| Shionogi Inc | $106 |
| Regeneron Healthcare Solutions, Inc. | $52 |
| Novartis Pharmaceuticals Corporation | $50 |
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: 2025-02-07
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
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 |
|---|---|---|---|---|
| I20110518000309 | I | Internal Medicine | FL | TBD |
| I20211021001752 | I | Internal Medicine | KS | TBD |
| I20250207002752 | I | Internal Medicine | AL | 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 |
|---|---|---|---|---|
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 541 | 467 | $0 |
| 99291 | Critical care, first 30-74 minutes | 56 | 54 | $0 |
| 99406 | Smoking and tobacco use intensive counseling, 4-10 minutes | 14 | 13 | $0 |
Insurance plans in this area (ZIP 66801)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Pulmonary Disease, Internal Medicine | KS | |
| N E U R O L O G Y | KS | |
| P S Y C H I A T R Y | KS | |
| Internal Medicine | CO | |
| Emergency Medicine, Pediatric Medicine, Internal Medicine, Pediatric Medicine | KS | |
| Internal Medicine, Infectious Disease, Infectious Disease | NY | |
| Nurse Practitioner | KS | |
| Internal Medicine | IL | |
| Internal Medicine | OH | |
| General Practice, Internal Medicine | NY |
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