Dr. Bor-Han Chiu, DO

  • Lynwood, CA
  • Infectious disease specialist
NPI1306239470PAC ID2466758933
Medicare services, 2024
3,293
Medicare patients, 2024
395
Part D claims, 2024
33
Hospital affiliations
3
Industry payments
$2,812
Practice address
3630 East Imperial Highway, Lynwood, CA 90262
Practice phone
Call (310) 900-8900
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

St. Francis Medical Center

Hospital · Lynwood, California

See all 6 affiliations

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Dr. Bor-Han Chiu is an infectious disease specialist in Lynwood, California

Dr. Chiu practices at St. Francis Medical Center in Lynwood, California, part of Prime Healthcare Services.

Dr. Chiu's NPI, 1306239470, was assigned on March 12, 2015. Dr. Chiu graduated from Touro University California - Vallejo in 2014. Dr. Chiu's California license number on file is 20A15498.

NPI and contact details
Medicare PAC ID
2466758933
NPI enumeration date
March 12, 2015
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(310) 900-8900
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
38
Medical school graduation
2014

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

Dr. Bor-Han Chiu practices at St. Francis Medical Center in Lynwood, California

Dr. Chiu's primary practice is St. Francis Medical Center, at 3630 East Imperial Highway, Lynwood, CA 90262 in Los Angeles County. The practice phone is (310) 900-8900.

Source: Dmand AI Affiliation Data

Dr. Bor-Han Chiu is affiliated with 5 sites of care and 1 medical group

Dr. Chiu's primary practice is St. Francis Medical Center in Lynwood, California, part of Prime Healthcare Services. Dr. Chiu is also affiliated with PIH Health Whittier Hospital. The medical group on file is Woundtech of California. Dmand AI also links Dr. Chiu to 1 more hospital, 1 physician office and 1 group practice or clinic, each named with a free account.

See all 6 affiliations for Dr. Chiu

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

Dmand AI tracks the EHR system at Dr. Bor-Han Chiu's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chiu practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
St. Francis Medical CenterAvailable with a free account
+4 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Bor-Han Chiu is one of 1,054 infectious disease specialists in California

Infectious disease is Dr. Chiu's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Chiu is board certified in infectious disease by the American Board of Internal Medicine. Dmand AI has Dr. Chiu's licenses on file in 3 states: California, Arizona and Ohio.

Specialties and state licenses

  • Infectious disease, CaliforniaPrimaryLicense 20A15498 · 2017 to 2025 · taxonomy 207RI0200X
  • Arizona license2022 to 2025
  • Ohio license2015 to 2018

Infectious disease specialists near Dr. Chiu

Counts of infectious disease specialists 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. Bor-Han Chiu billed Medicare for 3,293 services in 2024

CMS data shows 3,293 Medicare services from Dr. Chiu across 4 procedure codes in 2024, for 395 Medicare patients. Medicare paid $312,015 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 20243,293
Medicare patients395
Paid by Medicare$312,015
Procedure codes4

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

  • 2023
  • 2024
Office and hospital visits
2023: 2,2642024: 3,29345%

Dr. Chiu compared with the California median for infectious disease specialists, 2024

  • Dr. Chiu
  • California median
Medicare services
3,293vs 4297.7 times
Medicare patients
395vs 1802.2 times
Part D claims
38vs 11968% below

Medians across 930 infectious disease specialists in California with Dmand AI profiles that report each measure.

Dr. Chiu'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. Chiu

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

Dr. Bor-Han Chiu treated 395 Medicare patients in 2024, average age 73

CMS counts 395 Medicare patients who saw Dr. Chiu in 2024. The largest group is 65 to 74, with 138 patients. 75% of them have diabetes, and 75% have high blood pressure. 90% are also on Medicaid. Their average risk score is 4.52, 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. Chiu's median patient age at 65, with 30% women.

Medicare patients, 2024395
Average age73
Average risk score4.52
Also on Medicaid90%

Dr. Chiu's Medicare patients by age, 2024

Dr. Chiu's Medicare patients by sex, 2024

  • Women20251%
  • Men19349%

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

  1. Diabetes75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Heart failure72%
  5. Chronic kidney disease66%
  6. Arthritis63%
  7. Ischemic heart disease60%
  8. Mood disorders57%

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

Dr. Chiu's patients across all payers

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

Patient panel by age, all payers

Median age 65

Patient panel by sex, all payers

  • Women30%
  • Men67%

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

Dr. Bor-Han Chiu wrote 33 Medicare Part D claims in 2024

In 2024, Dr. Chiu wrote 33 Medicare Part D claims for 20 patients. 52% of them were for generic drugs. They cover 2 drugs, with $12,081 in total drug cost. In 2022, CMS named 27 claims across 1 drug.

Part D claims, 202433
Drugs named by CMS2
Total drug cost$12,081
Part D patients20

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

  • Generic17 claims52%
  • Brand-name16 claims48%

Dr. Chiu's most prescribed drugs by claims, 2023

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. Chiu's Part D claims, 2024

  • Antibiotics91%30 of 33 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, 2022 to 2023

  • 2022
  • 2023
Claims for drugs CMS names
2022: 272023: 3841%

Drugs named by CMS: 2 in 2023, 1 in 2022.

See all prescribing by Dr. Chiu

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. Bor-Han Chiu takes part in Medicare

Dr. Chiu 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)

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Dr. Bor-Han Chiu received $2,812 in industry payments from 2020 to 2025

CMS Open Payments shows 28 general payments to Dr. Chiu from 4 drug and device companies from 2020 to 2025. Food and beverage make up the largest share, 100% of the total. Melinta Therapeutics, Inc. paid the most, $1,236.

General payments to Dr. Chiu by program year, 2020 to 2025

Companies that paid Dr. Chiu the most, 2020 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Chiu

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

Dr. Bor-Han Chiu graduated from Touro University California - Vallejo

Dr. Chiu graduated from Touro University California - Vallejo in 2014.

  1. Medical schoolTouro University California - Vallejo
  2. Board certified in infectious diseaseAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Bor-Han Chiu accepts plans from 8 insurance carriers

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

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Humana
  • Regence Health Plans
  • United Healthcare
  • CMS Medicare

Plan types Dr. Chiu accepts, by number of carriers

  1. Medicare8
  2. PPO7
  3. HMO2
  4. POS2
  5. EPO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Bor-Han Chiu'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)
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. Bor-Han Chiu

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. Bor-Han Chiu's NPI number?

Dr. Bor-Han Chiu's NPI number is 1306239470. It was assigned on March 12, 2015, and it is active in the NPI Registry.

What kind of doctor is Dr. Bor-Han Chiu?

Dr. Bor-Han Chiu is an infectious disease specialist in Lynwood, California. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).

Where does Dr. Bor-Han Chiu practice?

Dr. Chiu practices at 3630 East Imperial Highway, Lynwood, CA 90262. Dr. Chiu's primary practice is St. Francis Medical Center in Lynwood, California, part of Prime Healthcare Services. Dmand AI also links Dr. Chiu to 1 hospital, 1 physician office and 1 group practice or clinic.

What is Dr. Bor-Han Chiu's office phone number?

The practice phone on file for Dr. Chiu is (310) 900-8900.

What is Dr. Bor-Han Chiu's medical license number?

Dr. Chiu's California license number on file is 20A15498, one of the licenses on file in 3 states.

Which states has Dr. Bor-Han Chiu been licensed in?

Dmand AI has state licenses on file for Dr. Chiu in California (2017 to 2025), Arizona (2022 to 2025) and Ohio (2015 to 2018).

Which hospitals is Dr. Bor-Han Chiu affiliated with?

Dr. Chiu practices at St. Francis Medical Center in Lynwood, California. Dr. Chiu is also affiliated with PIH Health Whittier Hospital. Dmand AI links Dr. Chiu to 1 more hospital.

What medical group is Dr. Bor-Han Chiu part of?

Dr. Chiu is linked to Woundtech of California.

Does Dr. Bor-Han Chiu accept Medicare?

Yes. CMS data shows Dr. Chiu billed Medicare for 3,293 services in 2024, and Dr. Chiu accepts Medicare assignment.

How many Medicare patients does Dr. Bor-Han Chiu see?

CMS counts 395 Medicare patients who saw Dr. Chiu in 2024, with an average age of 73.

Show 7 more questionsShow fewer questions

Is Dr. Bor-Han Chiu board certified?

Yes. Dr. Chiu is board certified in infectious disease by the American Board of Internal Medicine.

What services does Dr. Bor-Han Chiu bill to Medicare?

In 2024, Dr. Chiu's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99222).

Where did Dr. Bor-Han Chiu go to medical school?

Dr. Chiu graduated from Touro University California - Vallejo in 2014.

What drugs does Dr. Bor-Han Chiu prescribe most?

In 2023 Medicare Part D data, Dr. Chiu's most prescribed drugs by claims were Ceftriaxone and Ertapenem.

Has Dr. Bor-Han Chiu received payments from drug or device companies?

CMS Open Payments shows $2,812 in general payments to Dr. Chiu from 4 companies from 2020 to 2025. The largest total came from Melinta Therapeutics, Inc.

How long has Dr. Bor-Han Chiu been practicing?

Dr. Chiu graduated from medical school in 2014, 12 years ago.

What insurance does Dr. Bor-Han Chiu accept?

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

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