Pamela Dewar De Silva, MD
Internal Medicine Physician · Palmdale, CA
Pamela Dewar De Silva, MD is an internal medicine physician with a practice address in Palmdale, California, and NPI 1568414548, issued on May 17, 2006. Check the license (California A48894, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Pamela Dewar De Silva
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A48894 CA
Self-reported in NPPES; status is on the state search - Practice location
- 623 W Avenue Q, Palmdale, CA 93551
- Phone
- (661) 726-6255
- Enumerated
- May 17, 2006
- Record last updated
- Apr 14, 2022
- Fax
- (855) 451-0552
- Medicaid ID
- 00A488940 CA
- Medicare enrollment
- Enrolled (PECOS I20080103000494); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 623 W Avenue Q
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Udaya Desilva, M.D.Pain Medicine (Anesthesiology) Physician1730100330
Verify Pamela Dewar De Silva in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A48894Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% more Medicare Part D claims than the average internal medicine physician in 2024
4,668 Medicare Part D claims for 393 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Levothyroxine Sodium379 claims
- Atorvastatin Calcium282 claims
- Rosuvastatin Calcium276 claims
- Amlodipine Besylate181 claims
- Metoprolol Succinate140 claims
- Ozempic115 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $99.92
3 payments; by number, the most common kind was food and beverage; the largest payer was Avanos Medical. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Desilva Medical, Inc.Palmdale, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Pamela Dewar De Silva among 17,696 internal medicine physician records in California
Pamela Dewar De Silva, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1982 · median 2004 among the 11,065 with a school on file
- Record last updated2022 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
25 internal medicine physician records list a practice address in Palmdale
They are 25 of the 2,077 NPPES records with a practice address in Palmdale, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Palmdale → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Arsineh Artounian Savarani, DOPalmdale, CA 935511346827326
- Camellia Babaie, M.D.Palmdale, CA 935511902175441
- Joan Chapman, D.O.Palmdale, CA 935511225329733
- Wah Wah Chu, MDPalmdale, CA 935511891018719
- Hamza Gohar, D.O.Palmdale, CA 935511215464037
- Sadhana Kamath, M.D.Palmdale, CA 935511316996002
- Taher KatouzianPalmdale, CA 935511902062151
- Yunha KimPalmdale, CA 935511790207579
Common questions
What is Pamela Dewar De Silva, MD's NPI number?
Pamela Dewar De Silva, MD's National Provider Identifier (NPI) is 1568414548, issued on May 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Pamela Dewar De Silva, MD located?
The NPPES record lists a practice address at 623 W Avenue Q, Palmdale, CA, 93551. Phone: (661) 726-6255. Providers update this record themselves, so call before visiting.
How can I verify Pamela Dewar De Silva, MD's license?
NPPES lists California license number A48894, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Pamela Dewar De Silva, MD prescribe under Medicare Part D?
In 2024, Pamela Dewar De Silva, MD had 4,668 Medicare Part D claims for 393 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.