ERNESTO JOSE NEGRON (M.D.) – Hospitalist Physician, NPI 1841475845
Hospitalist Physician
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Profile Insights
NPPES metrics only — not quality of care.
4,186 INTERNAL MEDICINE in MO
Provider Addresses for ERNESTO JOSE NEGRON (M.D.)
615 S New Ballas Rd
Saint Louis, MO 631418221
Phone: (314) 251-6339
Fax: (314) 251-4564
Type: Location
5325 Faraon St
Saint Joseph, MO 645063488
Phone: (816) 271-6406
Fax: (816) 271-7986
Type: Location
621, South New Ballas Road, Creve Coeur, Saint Louis County, Missouri, 63141, United States
SUITE 3016B
SAINT LOUIS, MO 631418232
Phone: (314) 251-6339
Type: Mailing
Saint Johns Mercy Medical Center, 615, South New Ballas Road, Creve Coeur, Saint Louis County, Missouri, 63141, United States
SAINT LOUIS, MO 631418221
Phone: (314) 251-6339
Fax: (314) 251-4564
Type: Location
3015 N BALLAS RD
SAINT LOUIS, MO 631312329
Phone: (314) 996-5772
Fax: (314) 996-7691
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $123.
Total Amount is formed as General ($123) + Research ($0) + Ownership ($0) = $123.
Last reported payment date: 2023-06-06 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($123).
Total Amount
$123
General + Research + Ownership
Payments
1
Total payment records
General Amount
$123
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-06-06
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $123 |
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: 2013-07-16
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Past revalidation due date
Earliest CMS due date was 2023-07-31 (1043 days ago).
Enrollment records
1
Earliest due date
2023-07-31
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 |
|---|---|---|---|---|
| I20130716000900 | I | Internal Medicine | MO | 2023-07-31 |
What to do next
- Verify current status on the CMS Revalidation Lookup Tool immediately.
- Complete revalidation in PECOS or contact your Medicare Administrative Contractor (MAC).
- Overdue revalidation can lead to deactivation of Medicare billing privileges.
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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 594 | 219 | $0 |
| 99238 | Hospital discharge day management, 30 minutes or less | 212 | 206 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 154 | 83 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 66 | 66 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 21 | 21 | $0 |
Insurance plans in this area (ZIP 63141)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | IN | |
| Cardiovascular Disease (Cardiology) | MO | |
| Family Practice | MO | |
| Certified Clinical Nurse Specialist (Cns) | MO | |
| Internal Medicine | MO | |
| A N E S T H E S I O L O G Y | MO | |
| - | MO | |
| Nurse Practitioner | MO | |
| - | MO | |
| - | MO |
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