JOHN NICK CHAFOS (MD) – Internal Medicine Physician, NPI 1871673830
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,703 EMERGENCY MEDICINE in NJ
Provider Addresses for JOHN NICK CHAFOS (MD)
257 RT 22 EAST
GREEN BROOK, NJ 08812
Phone: (732) 968-8832
Fax: (732) 968-2187
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 9 Open Payments records for all available years, with a total value of $146.
Total Amount is formed as General ($146) + Research ($0) + Ownership ($0) = $146.
Last reported payment date: 2023-10-06 • Largest payer in this snapshot: PFIZER INC. ($57).
Total Amount
$146
General + Research + Ownership
Payments
9
Total payment records
General Amount
$146
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-10-06
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| PFIZER INC. | $57 |
| Exact Sciences Corporation | $21 |
| Astellas Pharma US Inc | $20 |
| Novo Nordisk Inc | $18 |
| ABBVIE INC. | $15 |
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: 2005-06-22
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 |
|---|---|---|---|---|
| I20050622000792 | I | Family Practice | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 667 | 310 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 617 | 283 | $0 |
| J1100 | Injection, dexamethasone sodium phosphate, 1 mg | 592 | 106 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 410 | 226 | $0 |
| J0696 | Injection, ceftriaxone sodium, per 250 mg | 381 | 71 | $0 |
Insurance plans in this area (ZIP 08812)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | NJ | |
| Nurse Practitioner | NJ | |
| Physician Assistant | NJ | |
| Family Practice, Emergency Medicine | NJ | |
| Emergency Medicine, Family Practice | NJ | |
| Physician Assistant | NJ | |
| Physician Assistant | NJ | |
| Internal Medicine | NJ |
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