Dr. Au H. Bui, MD

  • Long Beach, CA
  • General surgeon
NPI1699970632PAC ID2961411780
Medicare services, 2024
139
Medicare patients, 2024
94
Part D claims, 2024
46
Publications
1
MIPS score, 2024
88
Practice address
2801 Atlantic Ave, Long Beach, CA 90806
Practice phone
Call (562) 933-2000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Long Beach Medical Center

Hospital · Long Beach, California

See all 7 affiliations

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Dr. Au H. Bui is a general surgeon in Long Beach, California

Dr. Bui practices at Long Beach Medical Center in Long Beach, California, part of MemorialCare Health System.

Dr. Bui's NPI, 1699970632, was assigned on June 19, 2007. Dr. Bui graduated from Albert Einstein College of Medicine in 2002. Dr. Bui holds California license A92745.

NPI and contact details
Medicare PAC ID
2961411780
NPI enumeration date
June 19, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(562) 933-2000
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
50
Medical school graduation
2002

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Au H. Bui practices at Long Beach Medical Center in Long Beach, California

Dr. Bui's primary practice is Long Beach Medical Center, at 2801 Atlantic Ave, Long Beach, CA 90806 in Los Angeles County. The practice phone is (562) 933-2000.

Source: Dmand AI Affiliation Data

Dr. Au H. Bui is affiliated with 4 sites of care and 3 medical groups

Dr. Bui's primary practice is Long Beach Medical Center in Long Beach, California, part of MemorialCare Health System. The medical group on file is ProHealth Partners. Dmand AI also links Dr. Bui to 2 more group practices and clinics, 2 medical groups and 1 therapy and rehab clinic, each named with a free account.

See all 7 affiliations for Dr. Bui

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Au H. Bui's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bui practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Long Beach Medical CenterAvailable with a free account
+3 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Au H. Bui is one of 2,926 general surgeons in California

Surgery is Dr. Bui's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Bui is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Bui's licenses on file in 3 states: California, Ohio and Pennsylvania.

Specialties and state licenses

  • Surgery, CaliforniaPrimaryLicense A92745 · 2005 to 2027 · taxonomy 208600000X
  • Ohio license2010 to 2013
  • Pennsylvania licenseLicense MT193875 · 2008 to 2010

Clinical focus

Dmand AI lists abdominal hernia repair surgery, acute gallbladder or bile duct inflammation, appendectomy, colon removal, esophagus, stomach, or upper small intestine surgery, gallbladder removal, groin hernia surgery and upper GI endoscopy among the conditions Dr. Bui treats.

General surgeons near Dr. Bui

Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Au H. Bui billed Medicare for 139 services in 2024

CMS data shows 139 Medicare services from Dr. Bui across 6 procedure codes in 2024, for 94 Medicare patients. Medicare paid $17,938 for them.

Medicare services, 2024139
Medicare patients94
Paid by Medicare$17,938
Procedure codes6

Dr. Bui's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 2102024: 12540%
Surgery
2023: 332024: 1458%

Where Dr. Bui's Medicare services took place, 2024

  • In an office3928%
  • In a facility10072%

Dr. Bui compared with the California median for general surgeons, 2024

  • Dr. Bui
  • California median
Medicare services
139vs 16616% below
Medicare patients
94vs 12122% below
Part D claims
22vs 3435% below

Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.

Dr. Bui's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Bui

Need commercial claims for Dr. Bui?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Bui and other general surgeons in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Au H. Bui treated 94 Medicare patients in 2024, average age 76

CMS counts 94 Medicare patients who saw Dr. Bui in 2024. The largest group is 75 to 84, with 42 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.82, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Bui's median patient age at 63, with 53% women.

Medicare patients, 202494
Average age76
Average risk score1.82
Also on Medicaid16%

Dr. Bui's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Bui's Medicare patients by sex, 2024

  • Women4447%
  • Men5053%

Chronic conditions among Dr. Bui's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol74%
  3. Arthritis50%
  4. Diabetes34%
  5. Anxiety30%
  6. Chronic kidney disease30%
  7. Ischemic heart disease29%
  8. Atrial fibrillation27%

Share of Medicare patients with each condition. A patient can have several.

Dr. Bui's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 63

Patient panel by sex, all payers

  • Women53%
  • Men46%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Au H. Bui wrote 46 Medicare Part D claims in 2024

In 2024, Dr. Bui wrote 46 Medicare Part D claims for 27 patients. 98% of them were for generic drugs. CMS names the drug for 22 of them, across 2 drugs with 11 or more claims each, at $165 in total drug cost. In 2023, CMS named 20 claims across 1 drug.

Part D claims, 202446
Drugs named by CMS2
Total drug cost$165
Part D patients27

Dr. Bui's Part D claims by kind of drug, 2024

  • Generic45 claims98%
  • Brand-name and other1 claims2%

Dr. Bui'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.

Drug classes CMS tracks in Dr. Bui's Part D claims, 2024

  • Opioids43%20 of 46 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 202024: 2210%

Drugs named by CMS: 2 in 2024, 1 in 2023.

See all prescribing by Dr. Bui

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

Dr. Au H. Bui scored 88 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 88 out of 100 for Dr. Bui for performance year 2024, reported as part of a group. Dr. Bui accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Bui's MIPS scores, performance year 2024

  • 88of 100Final score
  • 84.1of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 74of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)

Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Au H. Bui has 1 publication on record

Dmand AI links 1 paper to Dr. Bui. Dr. Bui's most frequent co-author is Sandeep Soni, MD.

Papers1

Dr. Bui's most frequent co-authors

Recent publications by Dr. Bui

See all 1 publications and co-authors

See who Dr. Bui researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Bui works with, so you can find a warm path to the right general surgeons.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Au H. Bui received $6,731 in industry payments from 2016 to 2025

CMS Open Payments shows 95 general payments to Dr. Bui from 25 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 47% of the total. Intuitive Surgical, Inc. paid the most, $2,426.

General payments to Dr. Bui by program year, 2016 to 2025

General payments to Dr. Bui by kind, 2016 to 2025

$6.7Kin total
  • Food and beverage$3,18047%
  • Travel and lodging$2,55238%
  • Education$1,00015%

Companies that paid Dr. Bui the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Bui

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Au H. Bui graduated from Albert Einstein College of Medicine

Dr. Bui graduated from Albert Einstein College of Medicine in 2002.

  1. Medical schoolAlbert Einstein College of Medicine
  2. Board certified in surgeryAmerican Board of Surgery

Source: Dmand AI Professional Profile Data

Dr. Au H. Bui accepts plans from 8 insurance carriers

Dr. Bui is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Humana. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Humana
  • LA Care
  • Blue Cross Blue Shield of Massachusetts
  • Elevance
  • HCSC
  • CMS Medicare

Plan types Dr. Bui accepts, by number of carriers

  1. Medicare8
  2. PPO6
  3. HMO4
  4. POS2
  5. EPO1
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Au H. Bui's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Au H. Bui

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. Au H. Bui's NPI number?

Dr. Au H. Bui's NPI number is 1699970632. It was assigned on June 19, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Au H. Bui?

Dr. Au H. Bui is a general surgeon in Long Beach, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).

Where does Dr. Au H. Bui practice?

Dr. Bui practices at 2801 Atlantic Ave, Long Beach, CA 90806. Dr. Bui's primary practice is Long Beach Medical Center in Long Beach, California, part of MemorialCare Health System. Dmand AI also links Dr. Bui to 2 group practices and clinics, 2 medical groups and 1 therapy and rehab clinic.

What is Dr. Au H. Bui's office phone number?

The practice phone on file for Dr. Bui is (562) 933-2000.

What is Dr. Au H. Bui's medical license number?

Dr. Bui holds California license A92745, one of the licenses on file in 3 states.

Which states has Dr. Au H. Bui been licensed in?

Dmand AI has state licenses on file for Dr. Bui in California (2005 to 2027), Ohio (2010 to 2013) and Pennsylvania (2008 to 2010).

Which hospitals is Dr. Au H. Bui affiliated with?

Dr. Bui practices at Long Beach Medical Center in Long Beach, California.

What medical group is Dr. Au H. Bui part of?

Dr. Bui is linked to ProHealth Partners. Dmand AI links Dr. Bui to 2 more medical groups.

Does Dr. Au H. Bui accept Medicare?

Yes. CMS data shows Dr. Bui billed Medicare for 139 services in 2024, and Dr. Bui accepts Medicare assignment.

What is Dr. Au H. Bui's MIPS score?

Dr. Bui's MIPS final score for performance year 2024 is 88 out of 100, reported as part of a group.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Au H. Bui see?

CMS counts 94 Medicare patients who saw Dr. Bui in 2024, with an average age of 76.

Is Dr. Au H. Bui board certified?

Yes. Dr. Bui is board certified in surgery by the American Board of Surgery.

What services does Dr. Au H. Bui bill to Medicare?

In 2024, Dr. Bui's most billed Medicare services were hospital inpatient care (99222), hospital inpatient care (99232) and surgery: digestive system (47562).

Where did Dr. Au H. Bui go to medical school?

Dr. Bui graduated from Albert Einstein College of Medicine in 2002.

What drugs does Dr. Au H. Bui prescribe most?

In 2024 Medicare Part D data, Dr. Bui's most prescribed drugs by claims were Omeprazole and Tramadol HCl.

Has Dr. Au H. Bui received payments from drug or device companies?

CMS Open Payments shows $6,731 in general payments to Dr. Bui from 25 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.

How long has Dr. Au H. Bui been practicing?

Dr. Bui graduated from medical school in 2002, 24 years ago.

Does Dr. Au H. Bui do research?

Dmand AI links 1 publication to Dr. Bui.

Who does Dr. Au H. Bui publish with?

Dr. Bui's most frequent co-authors are Sandeep Soni, MD (1 shared paper).

What insurance does Dr. Au H. Bui accept?

Dr. Bui is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Humana. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

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