Seymour Silverberg, MD
Pediatrics Physician · Northridge, CA
Seymour Silverberg, MD is a pediatrics physician with a practice address in Northridge, California, and NPI 1184668444, issued on Jun 16, 2006. Check the license (California A21421, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Seymour Silverberg
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- A21421 CA
Self-reported in NPPES; status is on the state search - Practice location
- 18433 Roscoe Blvd, Northridge, CA 91325
- Phone
- (818) 349-3225
- Enumerated
- Jun 16, 2006
- Record last updated
- Nov 21, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (818) 349-2909
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 9,272 in California → Look up another NPI →
Also registered at 18433 Roscoe Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Dayan Gandhi, M.D, M.SNephrology Physician1285961789
- Leon Hasson, PHARM DPharmacist1730195660
Verify Seymour Silverberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A21421Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average pediatrics physician in 2024
45 Medicare Part D claims, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Seymour Silverberg among 9,272 pediatrics physician records in California
Seymour Silverberg, MD is one of 9,272 pediatrics physician records with a practice address in California. 31% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 56% newer
- In a Medicare fileYes · 31% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2011 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatrics Physician providers in California
There are 9,272 pediatrics physician records in California.
All 9,272 in California → Every provider in Northridge → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Elizabeth Evans, MD.Northridge, CA 913251508884941
- Charles Goodman, M.D.Northridge, CA 913251336163807
- Garabed Kayekjian, M.D.Northridge, CA 913251043203763
- Rhodora Kim, MDNorthridge, CA 913251750309365
- Laura NguyenNorthridge, CA 913251164841086
- Frank Peng, MDNorthridge, CA 913251316010648
- Jayvee Regala, MD.Northridge, CA 913251720017593
- Mehboob SachaniNorthridge, CA 913251144268657
Common questions
What is Seymour Silverberg, MD's NPI number?
Seymour Silverberg, MD's National Provider Identifier (NPI) is 1184668444, issued on Jun 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Seymour Silverberg, MD located?
The NPPES record lists a practice address at 18433 Roscoe Blvd, Northridge, CA, 91325. Phone: (818) 349-3225. Providers update this record themselves, so call before visiting.
How can I verify Seymour Silverberg, MD's license?
NPPES lists California license number A21421, 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 Seymour Silverberg, MD prescribe under Medicare Part D?
In 2024, Seymour Silverberg, MD had 45 Medicare Part D claims; the average among pediatrics physician prescribers was 375. 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.