DR. JOHN PATRICK WHELAN (MD PHD) – Pediatric Rheumatology Physician, NPI 1083681258
Pediatric Rheumatology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
759 RHEUMATOLOGY in CA
Provider Addresses for DR. JOHN PATRICK WHELAN (MD PHD)
757 Westwood Plz Ste 7501
Los Angeles, CA 900953075
Phone: (310) 267-9643
Fax: (310) 267-3840
Type: Location
5767 W CENTURY BLVD STE 400
LOS ANGELES, CA 900455631
Phone:
Type: Mailing
UCLA Medical Center - Santa Monica, 1250, 16th Street, Santa Monica, Los Angeles County, California, 90404, United States
SANTA MONICA, CA 904041249
Phone: (310) 319-4698
Fax: (310) 319-4908
Type: Location
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 $122.
Total Amount is formed as General ($122) + Research ($0) + Ownership ($0) = $122.
Last reported payment date: 2023-06-06 • Largest payer in this snapshot: Gilead Sciences, Inc. ($122).
Total Amount
$122
General + Research + Ownership
Payments
1
Total payment records
General Amount
$122
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 |
|---|---|
| Gilead Sciences, Inc. | $122 |
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: 2011-08-05
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 |
|---|---|---|---|---|
| I20110805000701 | I | Rheumatology | CA | 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 |
|---|---|---|---|---|
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 22 | 22 | $0 |
Insurance plans in this area (ZIP 90095)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| Cardiovascular Disease (Cardiology), Pediatric Medicine | CA | |
| Gastroenterology, Pediatric Medicine | MD | |
| Pediatric Medicine, Neurology | NJ | |
| - | CA | |
| Hospitalist, Pediatric Medicine | FL | |
| Pediatric Medicine, Critical Care (Intensivists) | CA | |
| - | CA | |
| Cardiovascular Disease (Cardiology), Pediatric Medicine | NY | |
| - | CA |
Reviews
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