CHANGJIAN CHEN (MD) – Gastroenterology Physician, NPI 1649223272
Gastroenterology Physician
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Profile Insights
NPPES metrics only — not quality of care.
448 GASTROENTEROLOGY in IN
Provider Addresses for CHANGJIAN CHEN (MD)
3505 S REED RD
KOKOMO, IN 469023838
Phone: (765) 776-5500
Type: Location
Hocker & Associates, 6626, East 75th Street, Indianapolis, Indiana, 46250, United States
SUITE 500
INDIANAPOLIS, IN 462502890
Phone:
Type: Mailing
3611, South Reed Road, Terrace Gardens, Kokomo, Howard County, Indiana, 46902, United States
SUITE 108
KOKOMO, IN 469023806
Phone: (765) 864-5784
Fax: (765) 864-5785
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 16 Open Payments records for all available years, with a total value of $340.
Total Amount is formed as General ($340) + Research ($0) + Ownership ($0) = $340.
Last reported payment date: 2024-12-16 • Largest payer in this snapshot: Takeda Pharmaceuticals U.S.A., Inc. ($73).
Total Amount
$340
General + Research + Ownership
Payments
16
Total payment records
General Amount
$340
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Takeda Pharmaceuticals U.S.A., Inc. | $73 |
| Merck Sharp & Dohme LLC | $51 |
| ABBVIE INC. | $38 |
| Celgene Corporation | $35 |
| Lilly USA, LLC | $29 |
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: 2009-01-08
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 |
|---|---|---|---|---|
| I20090108000607 | I | Gastroenterology | IN | 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 |
|---|---|---|---|---|
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 208 | 208 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 196 | 183 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 156 | 145 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 97 | 91 | $0 |
| 43235 | Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 83 | 80 | $0 |
Insurance plans in this area (ZIP 46902)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GASTROENTEROLOGY | IN | 43235 | Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscope | 137 | 133 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Cardiac Electrophysiology | NV | |
| Family Practice | IN | |
| - | IN | |
| - | IN | |
| Physician Assistant | IN | |
| Geriatric Medicine | IN | |
| Family Practice | IN | |
| - | IN | |
| Nurse Practitioner | IN | |
| Nurse Practitioner | IN |
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