DR. DARREN R. HASKELL (M.D.) – Internal Medicine Physician, NPI 1689636813
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,186 INTERNAL MEDICINE in MO
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Provider Addresses for DR. DARREN R. HASKELL (M.D.)
226, South Woods Mill Road, Chesterfield, Saint Louis County, Missouri, 63017, United States
SUITE 43 WEST
CHESTERFIELD, MO 630173662
Phone: (314) 205-6444
Fax: (314) 205-6433
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 81 Open Payments records for all available years, with a total value of $1,486.
Total Amount is formed as General ($1,486) + Research ($0) + Ownership ($0) = $1,486.
Last reported payment date: 2024-12-05 • Largest payer in this snapshot: Astellas Pharma US Inc ($159).
Total Amount
$1,486
General + Research + Ownership
Payments
81
Total payment records
General Amount
$1,486
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-05
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Astellas Pharma US Inc | $159 |
| GlaxoSmithKline, LLC. | $157 |
| Novartis Pharmaceuticals Corporation | $142 |
| Novo Nordisk Inc | $119 |
| PFIZER INC. | $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: 2004-04-27
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 |
|---|---|---|---|---|
| I20040427001477 | I | Internal Medicine | MO | 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 | 837 | 451 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 130 | 112 | $0 |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 120 | 119 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 76 | 25 | $0 |
| 99238 | Hospital discharge day management, 30 minutes or less | 44 | 30 | $0 |
Insurance plans in this area (ZIP 63017)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | MO | |
| Internal Medicine | MO | |
| Rheumatology, Internal Medicine | MO | |
| Internal Medicine | MO | |
| Rheumatology, Internal Medicine | MO | |
| Nurse Practitioner | MO | |
| Nurse Practitioner | MO |
Reviews
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