Gerald Charles Berkman, MD
Pediatric Nephrology Physician · Westlake Village, CA
Gerald Charles Berkman, MD is a pediatric nephrology physician with a practice address in Westlake Village, California, and NPI 1225009822, issued on Jan 31, 2006. Check the license (California G21015, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gerald Charles Berkman
- Credential
- MD
- Primary taxonomy
- Pediatric Nephrology Physician 2080P0210X
- License number
- G21015 CA
Self-reported in NPPES; status is on the state search - Practice location
- 32144 Agoura RD, Westlake Village, CA 91361
- Phone
- (818) 889-8387
- Enumerated
- Jan 31, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (818) 889-0272
- Entity
- Type 1 · individual
8 nearest pediatric nephrology physician records → All 116 in California → Look up another NPI →
Also registered at 32144 Agoura RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Asher Kashanchi, PHARM DPharmacist1083051825
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Verify Gerald Charles Berkman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G21015Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% fewer Medicare Part D claims than the average pediatric nephrology physician in 2024
37 Medicare Part D claims, against an average of 67 among the 387 providers of this specialty who prescribed in Part D.
Most prescribed
- Rosuvastatin Calcium13 claims
- Alprazolam11 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.
Gerald Charles Berkman among 116 pediatric nephrology physician records in California
Gerald Charles Berkman, MD is one of 116 pediatric nephrology physician records with a practice address in California. 68% 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 under 1% of them.
- NPI issued2006 · under 1% of these records are older, 57% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2026 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0210X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Nephrology Physician providers in California
There are 116 pediatric nephrology physician records in California.
All 116 in California → Every provider in Westlake Village → Pediatric Nephrology Physician nationwide →
The 8 pediatric nephrology physician records with the nearest ZIP codes
- Susanne Sager, M.D.West Hills, CA 913071124066360
- Orawan Sitburana, M.D.El Monte, CA 917311760425383
- Hma Mahdavi, M.D.Long Beach, CA 908041780773721
- Nihar BhaktaCarlsbad, CA 920091730653080
- Paul Kurtin, MDDel Mar, CA 920141831266048
- Geoffrey Carr, MDBellflower, CA 907061063537579
- Sujana Gunta, M.B., B.S.Oceanside, CA 920541932304342
- Nadine Benador, M.D.San Diego, CA 921231366513129
Common questions
What is Gerald Charles Berkman, MD's NPI number?
Gerald Charles Berkman, MD's National Provider Identifier (NPI) is 1225009822, issued on Jan 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gerald Charles Berkman, MD located?
The NPPES record lists a practice address at 32144 Agoura RD, Westlake Village, CA, 91361. Phone: (818) 889-8387. Providers update this record themselves, so call before visiting.
How can I verify Gerald Charles Berkman, MD's license?
NPPES lists California license number G21015, 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 Gerald Charles Berkman, MD prescribe under Medicare Part D?
In 2024, Gerald Charles Berkman, MD had 37 Medicare Part D claims; the average among pediatric nephrology physician prescribers was 67. 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.