JAJIN THOMAS CHON (M.D.) – Endocrinology, Diabetes & Metabolism Physician, NPI 1346320553
Endocrinology, Diabetes & Metabolism Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
425 ENDOCRINOLOGY in NJ
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Provider Addresses for JAJIN THOMAS CHON (M.D.)
264, Boyden Avenue, Maplewood, Essex County, New Jersey, 07040, United States
MAPLEWOOD, NJ 070403070
Phone: (973) 761-0764
Fax: (973) 761-0112
Type: Mailing
435, South Street, Morris Township, Morris County, New Jersey, 07960, United States
SUITE 230-A
MORRISTOWN, NJ 079606422
Phone: (973) 971-6480
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 86 Open Payments records for all available years, with a total value of $1,660.
Total Amount is formed as General ($1,660) + Research ($0) + Ownership ($0) = $1,660.
Last reported payment date: 2024-12-04 • Largest payer in this snapshot: Novo Nordisk Inc ($285).
Total Amount
$1,660
General + Research + Ownership
Payments
86
Total payment records
General Amount
$1,660
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-04
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Novo Nordisk Inc | $285 |
| Amgen Inc. | $201 |
| Lilly USA, LLC | $109 |
| Medtronic, Inc. | $104 |
| Mannkind Corporation | $81 |
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: 2003-11-18
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 |
|---|---|---|---|---|
| I20031118000960 | I | Endocrinology | NJ | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 240 | 101 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 48 | 35 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 35 | 35 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 14 | 13 | $0 |
Insurance plans in this area (ZIP 07040)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice, Geriatric Medicine | NJ | |
| Internal Medicine | NY | |
| - | NJ | |
| Cardiovascular Disease (Cardiology), Internal Medicine | NJ | |
| Nurse Practitioner | NJ | |
| - | NJ | |
| - | NY | |
| Internal Medicine, Cardiovascular Disease (Cardiology) | NJ | |
| Internal Medicine | NJ | |
| - | NJ |
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