Betty Denh Liu, M.D.
Allergy & Immunology Physician · Long Beach, CA
Betty Denh Liu, M.D. is an allergy & immunology physician with a practice address in Long Beach, California, and NPI 1033301247, issued on Aug 11, 2007. Check the license (California A102490, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Betty Denh Liu
- Credential
- M.D.
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- A102490 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2220 Clark Ave Unit A, Long Beach, CA 90815
- Phone
- (562) 997-9888
- Enumerated
- Aug 11, 2007
- Record last updated
- Jan 22, 2025
- Medicare enrollment
- Enrolled (PECOS I20100113000463); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 2006
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 444 in California → Look up another NPI →
Also registered at 2220 Clark Ave Unit A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sven Wang, MDAllergy & Immunology (Internal Medicine) Physician1134707805
Verify Betty Denh Liu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A102490Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
253 Medicare Part D claims for 62 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Montelukast Sodium60 claims
- Azelastine Hcl34 claims
- Fluticasone Propionate25 claims
- Ipratropium Bromide16 claims
- Epinephrine15 claims
- Lagevrio (Eua)11 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: $252.74
9 payments; by number, the most common kind was food and beverage; the largest payer was Csl Behring. The 2,496 providers of this specialty with any payment received $8,321.81 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 Asthma And Respiratory Care CenterLong Beach, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Betty Denh Liu among 444 allergy & immunology physician records in California
Betty Denh Liu, M.D. is one of 444 allergy & immunology 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 2007, is newer than 47% of them.
- NPI issued2007 · 47% of these records are older, 38% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2006 · median 2004 among the 281 with a school on file
- Record last updated2025 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in California
There are 444 allergy & immunology physician records in California.
All 444 in California → Every provider in Long Beach → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Fonda JiangLong Beach, CA 908081043590649
- Iris Kim, MDLong Beach, CA 908081992264964
- Steven Meltzer, MDLong Beach, CA 908081316915135
- Ashley Sandoval, M.D.Long Beach, CA 908081720408958
- Marc Tamaroff, MDLong Beach, CA 908081831167857
- Kenneth Kim, M.D.Long Beach, CA 908061205833563
- Inderpal Randhawa, M.D.Long Beach, CA 908061316035363
- Dennis Jerome, M.D.Los Alamitos, CA 907201720090301
Common questions
What is Betty Denh Liu, M.D.'s NPI number?
Betty Denh Liu, M.D.'s National Provider Identifier (NPI) is 1033301247, issued on Aug 11, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Betty Denh Liu, M.D. located?
The NPPES record lists a practice address at 2220 Clark Ave Unit A, Long Beach, CA, 90815. Phone: (562) 997-9888. Providers update this record themselves, so call before visiting.
How can I verify Betty Denh Liu, M.D.'s license?
NPPES lists California license number A102490, 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 Betty Denh Liu, M.D. prescribe under Medicare Part D?
In 2024, Betty Denh Liu, M.D. had 253 Medicare Part D claims for 62 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.