DR. MARGARET SONG (MD) – Internal Medicine Physician, NPI 1104074814
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
21,508 INTERNAL MEDICINE in CA
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Provider Addresses for DR. MARGARET SONG (MD)
Day Street, Riverside, Riverside County, California, 92553, United States
RIVERSIDE, CA 925070901
Phone: (951) 697-5420
Fax: (951) 697-5587
Type: Location
Arlington Avenue, Riverside, Riverside County, California, 92506, United States
RIVERSIDE, CA 925063912
Phone: (951) 782-3045
Fax: (951) 274-0608
Type: Mailing
6405 DAY ST
RIVERSIDE, CA 925070901
Phone: (951) 697-5420
Fax: (951) 697-5587
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 6 Open Payments records for all available years, with a total value of $137.
Total Amount is formed as General ($137) + Research ($0) + Ownership ($0) = $137.
Last reported payment date: 2024-10-23 • Largest payer in this snapshot: Abbott Laboratories ($113).
Total Amount
$137
General + Research + Ownership
Payments
6
Total payment records
General Amount
$137
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-23
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Abbott Laboratories | $113 |
| Novo Nordisk Inc | $24 |
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: 2009-12-07
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 |
|---|---|---|---|---|
| I20091207000152 | I | Internal Medicine | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 191 | 106 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 100 | 63 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 54 | 54 | $0 |
| G0444 | Annual depression screening, 5 to 15 minutes | 52 | 52 | $0 |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 27 | 25 | $0 |
Insurance plans in this area (ZIP 92507)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| D E R M A T O L O G Y | CA | |
| - | CA | |
| - | CA | |
| Internal Medicine | CA | |
| Dermatology, Micrographic Dermatologic Surgery (Mds) | CA | |
| Internal Medicine | CA | |
| Family Practice | CA | |
| Family Practice | CA | |
| Family Practice | CA | |
| Orthopedic Surgery | CA |
Reviews
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