DR. PAMELA DEWAR DE SILVA (MD) – Internal Medicine Physician, NPI 1568414548
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
21,511 INTERNAL MEDICINE in CA
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Provider Addresses for DR. PAMELA DEWAR DE SILVA (MD)
Lancaster Post Office, 567, West Lancaster Boulevard, Lancaster, Los Angeles County, California, 93534, United States
LANCASTER, CA 935394037
Phone: (661) 726-6255
Fax: (661) 726-6261
Type: Mailing
West Avenue Q, Palmdale, Los Angeles County, California, 93550, United States
SUITE A
PALMDALE, CA 935513890
Phone: (661) 726-6255
Fax: (855) 451-0552
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 4 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: 2024-11-15 • Largest payer in this snapshot: Avanos Medical ($54).
Total Amount
$122
General + Research + Ownership
Payments
4
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
2024-11-15
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Avanos Medical | $54 |
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | $28 |
| Dexcom, Inc. | $22 |
| Amgen Inc. | $18 |
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: 2008-01-03
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 |
|---|---|---|---|---|
| I20080103000494 | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 1,111 | 448 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 514 | 402 | $0 |
| 81002 | Urinalysis, manual test | 400 | 316 | $0 |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 379 | 310 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 364 | 215 | $0 |
Insurance plans in this area (ZIP 93539)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | CA | 81002 | Urinalysis, manual test | 140 | 101 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | CA |
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