Ronald M. Ferdman, MD
Pediatric Allergy/Immunology Physician · Los Angeles, CA
Ronald M. Ferdman, MD is a pediatric allergy/immunology physician with a practice address in Los Angeles, California, and NPI 1275626202, issued on Oct 2, 2006. Check the license (California G64356, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ronald M. Ferdman
- Credential
- MD
- Primary taxonomy
- Pediatric Allergy/Immunology Physician 2080P0201X
- License number
- G64356 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4650 W Sunset Blvd, Los Angeles, CA 90027
- Phone
- (323) 361-2501
- Enumerated
- Oct 2, 2006
- Record last updated
- May 14, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (323) 361-4627
- Medicaid ID
- 00G643560 CA
- Medicare enrollment
- Enrolled (PECOS I20100317000337); accepts Medicare assignment
- Medical or professional school
- Hahnemann University College Of Medicine, 1987
- Entity
- Type 1 · individual
8 nearest pediatric allergy/immunology physician records → All 52 in California → Look up another NPI →
Also registered at 4650 W Sunset Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Karineh Aboulian, MDPediatrics Physician1275774325
- Ahmed AbuhamadStudent in an Organized Health Care Education/Training Program1386478915
- Joanna Aceto, D.D.S.Pediatric Dentistry1033522578
- Etai Adam, M.D.Pediatrics Physician1578811998
Verify Ronald M. Ferdman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G64356Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average pediatric allergy/immunology physician in 2024
40 Medicare Part D claims, against an average of 259 among the 198 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% 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.
Industry payments in 2024: $29.65
1 payment: food and beverage; the largest payer was GlaxoSmithKline, LLC. The 289 providers of this specialty with any payment received $7,101.54 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
- Childrens Hospital Los Angeles Medical Group IncLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ronald M. Ferdman among 52 pediatric allergy/immunology physician records in California
Ronald M. Ferdman, MD is one of 52 pediatric allergy/immunology physician records with a practice address in California. 83% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 50% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1987 · median 1996 among the 26 with a school on file
- Record last updated2008 · 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 2080P0201X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Allergy/Immunology Physician providers in California
There are 52 pediatric allergy/immunology physician records in California.
All 52 in California → Every provider in Los Angeles → Pediatric Allergy/Immunology Physician nationwide →
The 8 pediatric allergy/immunology physician records with the nearest ZIP codes
- Joseph Church, MDLos Angeles, CA 900271942393095
- Neema Izadi, MD, MSLos Angeles, CA 900271003278086
- Peck Ong, MDLos Angeles, CA 900271659478865
- Stephanie Rodriguez, PNPLos Angeles, CA 900271336821594
- Marilyn Li, MDLos Angeles, CA 900331528260825
- Elizabeth FeuilleLos Angeles, CA 900671447549019
- Manish Butte, M.D., PH.D.Los Angeles, CA 900951801861216
- Talal Chatila, M.D.Los Angeles, CA 900951952321846
Common questions
What is Ronald M. Ferdman, MD's NPI number?
Ronald M. Ferdman, MD's National Provider Identifier (NPI) is 1275626202, issued on Oct 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ronald M. Ferdman, MD located?
The NPPES record lists a practice address at 4650 W Sunset Blvd, Los Angeles, CA, 90027. Phone: (323) 361-2501. Providers update this record themselves, so call before visiting.
How can I verify Ronald M. Ferdman, MD's license?
NPPES lists California license number G64356, 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 Ronald M. Ferdman, MD prescribe under Medicare Part D?
In 2024, Ronald M. Ferdman, MD had 40 Medicare Part D claims; the average among pediatric allergy/immunology physician prescribers was 259. 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.