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Dr. Betty Denh Liu, MD
NPI1033301247PAC ID5193866184
- Part D claims, 2024
- 253
- Publications
- 1
- Industry payments
- $10,952
- Affiliated sites
- 2
- Medical groups
- 2
- Practice address
- 2600 Redondo Avenue, Long Beach, CA 90806
- Practice phone
- Call (562) 988-7147
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Optum Surgery Center - Long Beach
Surgery Center - Medicare-Certified · Long Beach, California
Find Dr. Liu's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Betty Denh Liu is an allergist and immunologist in Long Beach, California
Dr. Liu practices at Optum Surgery Center - Long Beach in Long Beach, California.
Dr. Liu's NPI, 1033301247, was assigned on August 11, 2007. Dr. Liu graduated from UC San Diego School of Medicine in 2006. Dr. Liu holds California license A102490.
NPI and contact details
- NPI
- 1033301247NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5193866184
- NPI enumeration date
- August 11, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (562) 988-7147
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Betty Denh Liu practices at Optum Surgery Center - Long Beach in Long Beach, California
Dr. Liu's primary practice is Optum Surgery Center - Long Beach, at 2600 Redondo Avenue, Long Beach, CA 90806. The practice phone is (562) 988-7147.
- Optum Surgery Center - Long Beach2600 Redondo Avenue, Long Beach, CA 90806Phone(562) 988-7147
Source: Dmand AI Affiliation Data
Dr. Betty Denh Liu is affiliated with 2 sites of care and 2 medical groups
Dr. Liu's primary practice is Optum Surgery Center - Long Beach in Long Beach, California. The medical group on file is Allergy, Asthma, and Respiratory Care Medical Center. Dmand AI also links Dr. Liu to 1 more group practice or clinic and 1 medical group, each named with a free account.
Optum Surgery Center - Long BeachPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Betty Denh Liu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Liu practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Optum Surgery Center - Long Beach | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Betty Denh Liu is one of 386 allergists and immunologists in California
Allergy and immunology is Dr. Liu's primary specialty in the NPI Registry, under taxonomy code 207K00000X. Dr. Liu is board certified in allergy & immunology by the American Board of Allergy and Immunology. Dmand AI has Dr. Liu's licenses on file in 7 states: California, New Mexico, Maine, Minnesota, Pennsylvania, Texas and Iowa.
Specialties and state licenses
- Allergy and immunology, CaliforniaPrimary
- New Mexico license
- Maine license
- Minnesota license
- Pennsylvania license
- Texas license
- Iowa license
Allergists and immunologists near Dr. Liu
Counts of allergists and immunologists with a Dmand AI profile, by place and practice. Each opens the list.
386allergists and immunologists in California
3allergists and immunologists in Long Beach
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Betty Denh Liu's patients have a median age of 51
Across all payers, Dmand AI patient panel data puts Dr. Liu's median patient age at 51, with 55% women.
Dr. Liu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 51
Patient panel by sex, all payers
- Women55%
- Men45%
Source: Dmand AI Patient Panel Data
Dr. Betty Denh Liu wrote 253 Medicare Part D claims in 2024
In 2024, Dr. Liu wrote 253 Medicare Part D claims for 62 patients. 69% of them were for generic drugs. CMS names the drug for 161 of them, across 6 drugs with 11 or more claims each, at $9,412 in total drug cost. In 2023, CMS named 287 claims across 11 drugs.
Part D claims, 2024253
Drugs named by CMS6
Total drug cost$9,412
Part D patients62
Dr. Liu's Part D claims by kind of drug, 2024
- Generic174 claims69%
- Brand-name67 claims26%
- Other12 claims5%
Dr. Liu's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2872024: 16144%
Drugs named by CMS: 6 in 2024, 11 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Betty Denh Liu takes part in Medicare
Dr. Liu accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
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Dr. Betty Denh Liu has 1 publication on record
Dmand AI links 1 paper to Dr. Liu. Dr. Liu's most frequent co-authors are Daniel David Bikle, MD, Nathan Loren Liang and Dolores M. Shoback, MD.
Papers1
Dr. Liu's most frequent co-authors
- Daniel David Bikle, MD1 shared paper
- Nathan Loren Liang1 shared paper
- Dolores M. Shoback, MD1 shared paper
Recent publications by Dr. Liu
See who Dr. Liu researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Liu works with, so you can find a warm path to the right allergists and immunologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Betty Denh Liu received $10,952 in industry payments from 2016 to 2025
CMS Open Payments shows 353 general payments to Dr. Liu from 35 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 78% of the total. Optinose US, Inc. paid the most, $2,700.
General payments to Dr. Liu by program year, 2016 to 2025
General payments to Dr. Liu by kind, 2016 to 2025
$11Kin total
- Food and beverage$8,55678%
- Consulting fees$2,00018%
- Travel and lodging$2953%
- Education$1011%
Companies that paid Dr. Liu the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Betty Denh Liu graduated from UC San Diego School of Medicine
Dr. Liu graduated from UC San Diego School of Medicine in 2006.
- Medical school
- Board certified in allergy & immunology
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. Betty Denh Liu accepts plans from 7 insurance carriers
Dr. Liu is in network with 7 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
- Humana
- Molina
Plan types Dr. Liu accepts, by number of carriers
- Medicare6
- PPO4
- HMO2
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Betty Denh Liu's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Betty Denh Liu
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Betty Denh Liu's NPI number?
Dr. Betty Denh Liu's NPI number is 1033301247. It was assigned on August 11, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Betty Denh Liu?
Dr. Betty Denh Liu is an allergist and immunologist in Long Beach, California. The primary specialty in the NPI Registry is Allergy & Immunology Physician (taxonomy code 207K00000X).
Where does Dr. Betty Denh Liu practice?
Dr. Liu practices at 2600 Redondo Avenue, Long Beach, CA 90806. Dr. Liu's primary practice is Optum Surgery Center - Long Beach in Long Beach, California. Dmand AI also links Dr. Liu to 1 group practice or clinic and 1 medical group.
What is Dr. Betty Denh Liu's office phone number?
The practice phone on file for Dr. Liu is (562) 988-7147.
What is Dr. Betty Denh Liu's medical license number?
Dr. Liu holds California license A102490, one of the licenses on file in 7 states.
Which states has Dr. Betty Denh Liu been licensed in?
Dmand AI has state licenses on file for Dr. Liu in California (2008 to 2026), New Mexico (2024 to 2028), Maine (2025 to 2027), Minnesota (2021 to 2026), Pennsylvania (2025 to 2026), Texas (2020 to 2025) and Iowa (2010 to 2013).
What medical group is Dr. Betty Denh Liu part of?
Dr. Liu is linked to Allergy, Asthma, and Respiratory Care Medical Center. Dmand AI links Dr. Liu to 1 more medical group.
Does Dr. Betty Denh Liu accept Medicare?
Yes. CMS lists Dr. Liu as accepting Medicare assignment.
Is Dr. Betty Denh Liu board certified?
Yes. Dr. Liu is board certified in allergy & immunology by the American Board of Allergy and Immunology.
Where did Dr. Betty Denh Liu go to medical school?
Dr. Liu graduated from UC San Diego School of Medicine in 2006.
Show 6 more questionsShow fewer questions
What drugs does Dr. Betty Denh Liu prescribe most?
In 2024 Medicare Part D data, Dr. Liu's most prescribed drugs by claims were Montelukast Sodium, Azelastine HCl and Fluticasone Propionate.
Has Dr. Betty Denh Liu received payments from drug or device companies?
CMS Open Payments shows $10,952 in general payments to Dr. Liu from 35 companies from 2016 to 2025. The largest total came from Optinose US, Inc.
How long has Dr. Betty Denh Liu been practicing?
Dr. Liu graduated from medical school in 2006, 20 years ago.
Does Dr. Betty Denh Liu do research?
Dmand AI links 1 publication to Dr. Liu.
Who does Dr. Betty Denh Liu publish with?
Dr. Liu's most frequent co-authors are Daniel David Bikle, MD (1 shared paper), Nathan Loren Liang (1 shared paper) and Dolores M. Shoback, MD (1 shared paper).
What insurance does Dr. Betty Denh Liu accept?
Dr. Liu is in network with 7 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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