FELIX OBREGON – Internal Medicine Physician, NPI 1831271709
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
8,828 INTERNAL MEDICINE in IL
Provider Addresses for FELIX OBREGON
1971 GOWDEY RD STE 205
NAPERVILLE, IL 605634233
Phone: (630) 966-2637
Fax: (630) 966-1611
Type: Mailing
5533, West Cermak Road, Cicero, Cook County, Illinois, 60804, United States
CICERO, IL 608042236
Phone: (773) 277-6589
Fax: (773) 277-1841
Type: Mailing
3303, West 26th Street, South Lawndale, Chicago, Cook County, Illinois, 60623, United States
CHICAGO, IL 606234036
Phone: (773) 277-6589
Fax: (773) 277-1841
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 51 Open Payments records for all available years, with a total value of $1,035.
Total Amount is formed as General ($1,035) + Research ($0) + Ownership ($0) = $1,035.
Last reported payment date: 2024-10-01 • Largest payer in this snapshot: ABBVIE INC. ($492).
Total Amount
$1,035
General + Research + Ownership
Payments
51
Total payment records
General Amount
$1,035
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-01
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $492 |
| Amgen Inc. | $136 |
| Lilly USA, LLC | $106 |
| Lexicon Pharmaceuticals, Inc. | $89 |
| Novo Nordisk Inc | $60 |
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: 2004-05-13
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 |
|---|---|---|---|---|
| I20040513000187 | I | Internal Medicine | IL | 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 | 463 | 88 | $0 |
| 99490 | Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 74 | 29 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 67 | 52 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 48 | 27 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 37 | 37 | $0 |
Insurance plans in this area (ZIP 60563)
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