Dr. Darren Pakying Lum, MD

  • Whittier, CA
  • Diagnostic radiologist
NPI1528011806PAC ID2163427535
Medicare services, 2024
837
Medicare patients, 2024
778
Publications
10
MIPS score, 2024
97
Hospital affiliations
6
Practice address
12401 Washington Blvd, Whittier, CA 90602
Practice phone
Call (562) 698-0811
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

PIH Health Whittier Hospital

Hospital · Whittier, California

See all 12 affiliations

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Dr. Darren Pakying Lum is a diagnostic radiologist in Whittier, California

Dr. Lum practices at PIH Health Whittier Hospital in Whittier, California, part of PIH Health.

Dr. Lum's NPI, 1528011806, was assigned on May 18, 2006. Dr. Lum graduated from John A. Burns School of Medicine in 2002. Dr. Lum holds Hawaii license MD-14773.

NPI and contact details
Medicare PAC ID
2163427535
NPI enumeration date
May 18, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(562) 698-0811
Professional email
Get email
Personal email
Get email
Mobile number
Get number
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. Darren Pakying Lum practices at PIH Health Whittier Hospital in Whittier, California

Dr. Lum's primary practice is PIH Health Whittier Hospital, at 12401 Washington Blvd, Whittier, CA 90602 in Los Angeles County. The practice phone is (562) 698-0811.

Source: Dmand AI Affiliation Data

Dr. Darren Pakying Lum is affiliated with 6 sites of care and 6 medical groups

Dr. Lum's primary practice is PIH Health Whittier Hospital in Whittier, California, part of PIH Health. Dr. Lum is also affiliated with Stanford Hospital at 300 Pasteur Drive. The medical group on file is Lambert Radiology Medical Group. Dmand AI also links Dr. Lum to 4 more hospitals and 5 medical groups, each named with a free account.

See all 12 affiliations for Dr. Lum

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

Dmand AI tracks the EHR system at Dr. Darren Pakying Lum's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lum practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
PIH Health Whittier HospitalAvailable with a free account
+5 more sites and 5 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dmand AI maps EHR vendors, IT decision makers and buying committees across PIH Health and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Darren Pakying Lum is one of 4,096 diagnostic radiologists in California

Diagnostic radiology is Dr. Lum's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Lum is board certified in diagnostic radiology by the American Board of Radiology. Dmand AI has Dr. Lum's licenses on file in 4 states: Hawaii, California, Wisconsin and Illinois.

Specialties and state licenses

  • Diagnostic radiology, HawaiiPrimaryLicense MD-14773 · 2002 to 2026 · taxonomy 2085R0202X
  • California license2024 to 2026
  • Wisconsin license2004 to 2025
  • Illinois license2006 to 2008

Diagnostic radiologists near Dr. Lum

Counts of diagnostic radiologists 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. Darren Pakying Lum billed Medicare for 837 services in 2024

CMS data shows 837 Medicare services from Dr. Lum across 11 procedure codes in 2024, for 778 Medicare patients. Medicare paid $39,213 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024837
Medicare patients778
Paid by Medicare$39,213
Procedure codes11

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

  • 2023
  • 2024
Imaging
2023: 1,6462024: 83749%

Dr. Lum compared with the California median for diagnostic radiologists, 2024

  • Dr. Lum
  • California median
Medicare services
837vs 2,28163% below
Medicare patients
778vs 1,34642% below

Medians across 3,734 diagnostic radiologists in California with Dmand AI profiles that report each measure.

Dr. Lum'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. Lum

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

Dr. Darren Pakying Lum treated 778 Medicare patients in 2024, average age 76

CMS counts 778 Medicare patients who saw Dr. Lum in 2024. The largest group is 75 to 84, with 310 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 2.09, 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. Lum's median patient age at 58, with 55% women.

Medicare patients, 2024778
Average age76
Average risk score2.09
Also on Medicaid10%

Dr. Lum's Medicare patients by age, 2024

Dr. Lum's Medicare patients by sex, 2024

  • Women37448%
  • Men40452%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Chronic kidney disease49%
  4. Diabetes47%
  5. Arthritis36%
  6. Ischemic heart disease34%
  7. Heart failure28%
  8. Atrial fibrillation26%

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

Dr. Lum's patients across all payers

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

Patient panel by age, all payers

Median age 58

Patient panel by sex, all payers

  • Women55%
  • Men44%

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

Dr. Darren Pakying Lum scored 97 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. Lum for performance year 2024, reported through an alternative payment model (APM). Dr. Lum accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Lum's MIPS scores, performance year 2024

  • 97of 100Final score
  • 89.8of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

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

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

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Dr. Darren Pakying Lum has 10 publications on record

Dmand AI links 10 papers to Dr. Lum, published from 2009 to 2010. The most frequent topics are Imaging, Three-Dimensional, Magnetic Resonance Angiography and Contrast Media. Dr. Lum has published most often in AJNR Am J Neuroradiol.

Papers10
Years published2009 to 2010

Topics Dr. Lum writes about most

  • Imaging, Three-Dimensional
  • Magnetic Resonance Angiography
  • Contrast Media
  • Angiography
  • Image Processing, Computer-Assisted
  • Magnetic Resonance Imaging
  • Swine
  • Algorithms

Recent publications by Dr. Lum

See all 10 publications and co-authors

See who Dr. Lum researches with

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

How network discovery works

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

Dr. Darren Pakying Lum received $290 in industry payments from 2016 to 2022

CMS Open Payments shows 5 general payments to Dr. Lum from 1 drug or device company from 2016 to 2022. Food and beverage make up the largest share, 100% of the total. Siemens Medical Solutions USA, Inc. paid the most, $290.

General payments to Dr. Lum by program year, 2016 to 2022

Companies that paid Dr. Lum the most, 2016 to 2022

Share is of all general payments to this clinician.

See all payments to Dr. Lum

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

Dr. Darren Pakying Lum graduated from John A. Burns School of Medicine

Dr. Lum graduated from John A. Burns School of Medicine in 2002.

  1. Medical schoolJohn A. Burns School of Medicine
  2. Board certified in diagnostic radiologyAmerican Board of Radiology

Source: Dmand AI Professional Profile Data

Dr. Darren Pakying Lum accepts plans from 21 insurance carriers

Dr. Lum is in network with 21 carriers, including Elevance, Excellus BlueCross BlueShield and Aetna. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

  • Elevance
  • Excellus BlueCross BlueShield
  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • HCSC
  • Alliant Health Plans
  • Blue Cross Blue Shield of Massachusetts
  • +13 more carriersWith a free account

Plan types Dr. Lum accepts, by number of carriers

  1. PPO11
  2. HMO10
  3. Medicare8
  4. POS7
  5. EPO4
  6. Medicaid3

Source: Dmand AI Insurance Network Data

Sources for Dr. Darren Pakying Lum'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)
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)
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. Darren Pakying Lum

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. Darren Pakying Lum's NPI number?

Dr. Darren Pakying Lum's NPI number is 1528011806. It was assigned on May 18, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Darren Pakying Lum?

Dr. Darren Pakying Lum is a diagnostic radiologist in Whittier, California. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).

Where does Dr. Darren Pakying Lum practice?

Dr. Lum practices at 12401 Washington Blvd, Whittier, CA 90602. Dr. Lum's primary practice is PIH Health Whittier Hospital in Whittier, California, part of PIH Health. Dmand AI also links Dr. Lum to 4 hospitals and 5 medical groups.

What is Dr. Darren Pakying Lum's office phone number?

The practice phone on file for Dr. Lum is (562) 698-0811.

What is Dr. Darren Pakying Lum's medical license number?

Dr. Lum holds Hawaii license MD-14773, one of the licenses on file in 4 states.

Which states has Dr. Darren Pakying Lum been licensed in?

Dmand AI has state licenses on file for Dr. Lum in Hawaii (2002 to 2026), California (2024 to 2026), Wisconsin (2004 to 2025) and Illinois (2006 to 2008).

Which hospitals is Dr. Darren Pakying Lum affiliated with?

Dr. Lum practices at PIH Health Whittier Hospital in Whittier, California. Dr. Lum is also affiliated with Stanford Hospital at 300 Pasteur Drive. Dmand AI links Dr. Lum to 4 more hospitals.

What medical group is Dr. Darren Pakying Lum part of?

Dr. Lum is linked to Lambert Radiology Medical Group. Dmand AI links Dr. Lum to 5 more medical groups.

Does Dr. Darren Pakying Lum accept Medicare?

Yes. CMS data shows Dr. Lum billed Medicare for 837 services in 2024, and Dr. Lum accepts Medicare assignment.

What is Dr. Darren Pakying Lum's MIPS score?

Dr. Lum's MIPS final score for performance year 2024 is 97 out of 100, reported through an alternative payment model (APM).

Show 8 more questionsShow fewer questions

How many Medicare patients does Dr. Darren Pakying Lum see?

CMS counts 778 Medicare patients who saw Dr. Lum in 2024, with an average age of 76.

Is Dr. Darren Pakying Lum board certified?

Yes. Dr. Lum is board certified in diagnostic radiology by the American Board of Radiology.

What services does Dr. Darren Pakying Lum bill to Medicare?

In 2024, Dr. Lum's most billed Medicare services were diagnostic imaging (74183), diagnostic imaging (71045) and diagnostic imaging (72197).

Where did Dr. Darren Pakying Lum go to medical school?

Dr. Lum graduated from John A. Burns School of Medicine in 2002.

Has Dr. Darren Pakying Lum received payments from drug or device companies?

CMS Open Payments shows $290 in general payments to Dr. Lum from 1 company from 2016 to 2022. The largest total came from Siemens Medical Solutions USA, Inc.

How long has Dr. Darren Pakying Lum been practicing?

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

Does Dr. Darren Pakying Lum do research?

Dmand AI links 10 publications to Dr. Lum, published from 2009 to 2010.

What insurance does Dr. Darren Pakying Lum accept?

Dr. Lum is in network with 21 carriers, including Elevance, Excellus BlueCross BlueShield and Aetna. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

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