Chad K. Oh, M.D.
Pediatric Allergy/Immunology Physician · Torrance, CA
Chad K. Oh, M.D. is a pediatric allergy/immunology physician with a practice address in Torrance, California, and NPI 1568472421, issued on Aug 9, 2006. Check the license (California A52349, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Chad K. Oh
- Credential
- M.D.
- Primary taxonomy
- Pediatric Allergy/Immunology Physician 2080P0201X
- License number
- A52349 CA
Self-reported in NPPES; status is on the state search - Practice location
- 21840 Normandie Ave, Torrance, CA 90502
- Phone
- (310) 222-5133
- Enumerated
- Aug 9, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (310) 781-9352
- Medicare enrollment
- Enrolled (PECOS I20240628000388); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pediatric allergy/immunology physician records → All 52 in California → Look up another NPI →
Also registered at 21840 Normandie Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Thomas Anderson, MDNeurology Physician1750304234
- Morris Asch, M.D.Pediatric Surgery Physician1619957784
- Lilly Barba, M.D.Nephrology Physician1407835978
- Peter Barrett, M.D.Internal Medicine Physician1568441954
- Barry Baylen, M.D.Pediatric Cardiology Physician1346229879
Verify Chad K. Oh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A52349Check 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 pediatric allergy/immunology physician in 2024
31 Medicare Part D claims for 13 beneficiaries, against an average of 259 among the 198 providers of this specialty who prescribed in Part D. Brand-name drugs were 71% 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: $15.04
1 payment: food and beverage; the largest payer was ViiV Healthcare Company. 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
- Allergy And Asthma Clinic IncorporatedDaly City, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chad K. Oh among 52 pediatric allergy/immunology physician records in California
Chad K. Oh, M.D. 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
- Graduated1983 · median 1996 among the 26 with a school on file
- Record last updated2007 · 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 Torrance → Pediatric Allergy/Immunology Physician nationwide →
The 8 pediatric allergy/immunology physician records with the nearest ZIP codes
- Ly Nguyen, M.D.Torrance, CA 905051295823862
- Tania Kimia, MDSanta Monica, CA 904041295934826
- Manish Butte, M.D., PH.D.Los Angeles, CA 900951801861216
- Talal Chatila, M.D.Los Angeles, CA 900951952321846
- Kerry Gallagher, M.D.Los Angeles, CA 900951881618031
- Maria Garcia-Lloret, M.D.Los Angeles, CA 900951881618015
- Caroline KuoLos Angeles, CA 900951043402332
- Edward McCabe, MDLos Angeles, CA 900951932212255
Common questions
What is Chad K. Oh, M.D.'s NPI number?
Chad K. Oh, M.D.'s National Provider Identifier (NPI) is 1568472421, issued on Aug 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Chad K. Oh, M.D. located?
The NPPES record lists a practice address at 21840 Normandie Ave, Torrance, CA, 90502. Phone: (310) 222-5133. Providers update this record themselves, so call before visiting.
How can I verify Chad K. Oh, M.D.'s license?
NPPES lists California license number A52349, 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 Chad K. Oh, M.D. prescribe under Medicare Part D?
In 2024, Chad K. Oh, M.D. had 31 Medicare Part D claims for 13 beneficiaries; 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.