Dr. Simon K. Lo, MD

  • West Hollywood, CA
  • Gastroenterologist
NPI1255368874PAC ID2365636529
Medicare services, 2024
518
Medicare patients, 2024
349
Part D claims, 2024
65
Publications
41
Clinical trials
5
Practice address
8700 Beverly Blvd, Los Angeles, CA 90048
Practice phone
Call (310) 423-5000
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Cedars-Sinai Medical Center

Hospital · Los Angeles, California

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Dr. Simon K. Lo is a gastroenterologist in West Hollywood, California

Dr. Lo practices at Cedars-Sinai Medical Center in Los Angeles, California, part of Cedars-Sinai Health System.

Dr. Lo's NPI, 1255368874, was assigned on June 27, 2006. Dr. Lo graduated from New York University School of Medicine in 1982. Dr. Lo's California license number on file is G51850.

NPI and contact details
Medicare PAC ID
2365636529
NPI enumeration date
June 27, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(310) 423-5000
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
70
Medical school graduation
1982

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

Dr. Simon K. Lo practices at Cedars-Sinai Medical Center in Los Angeles, California

Dr. Lo's primary practice is Cedars-Sinai Medical Center, at 8700 Beverly Blvd, Los Angeles, CA 90048 in Los Angeles County. The practice phone is (310) 423-5000.

Source: Dmand AI Affiliation Data

Dr. Simon K. Lo is affiliated with 1 site of care and 1 medical group

Dr. Lo's primary practice is Cedars-Sinai Medical Center in Los Angeles, California, part of Cedars-Sinai Health System. The medical group on file is Cedars-Sinai Medical Center.

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

Dmand AI tracks the EHR system at Dr. Simon K. Lo's practice

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

EHR by site
SiteEHR vendor and product
Cedars-Sinai Medical CenterAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Simon K. Lo is one of 1,977 gastroenterologists in California

Gastroenterology is Dr. Lo's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Lo is board certified in gastroenterology by the American Board of Internal Medicine. Dr. Lo has a license on file in California.

Specialties and state licenses

  • Gastroenterology, CaliforniaPrimaryLicense G51850 · 1984 to 2025 · taxonomy 207RG0100X

Clinical focus

Dmand AI lists acid reflux, bile duct problems, colonoscopy, esophagus, stomach, or upper small intestine surgery, intestinal or bowel obstruction, irritable bowel syndrome (IBS), pancreas or bile duct endoscopy (ERCP) and pancreatitis among the conditions Dr. Lo treats.

Gastroenterologists near Dr. Lo

Counts of gastroenterologists 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. Simon K. Lo billed Medicare for 518 services in 2024

CMS data shows 518 Medicare services from Dr. Lo across 15 procedure codes in 2024, for 349 Medicare patients. Medicare paid $77,495 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024518
Medicare patients349
Paid by Medicare$77,495
Procedure codes15

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

  • 2023
  • 2024
Surgery
2023: 4322024: 36715%
Office and hospital visits
2023: 742024: 8414%
Imaging
2023: 892024: 6725%

Dr. Lo compared with the California median for gastroenterologists, 2024

  • Dr. Lo
  • California median
Medicare services
518vs 58612% below
Medicare patients
349vs 30216% above
Part D claims
19vs 38095% below

Medians across 1,875 gastroenterologists in California with Dmand AI profiles that report each measure.

Dr. Lo'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. Lo

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

Dr. Simon K. Lo treated 349 Medicare patients in 2024, average age 75

CMS counts 349 Medicare patients who saw Dr. Lo in 2024. The largest group is 75 to 84, with 146 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 19% are also on Medicaid. Their average risk score is 1.78, 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. Lo's median patient age at 73, with 53% women.

Medicare patients, 2024349
Average age75
Average risk score1.78
Also on Medicaid19%

Dr. Lo's Medicare patients by age, 2024

Dr. Lo's Medicare patients by sex, 2024

  • Women18453%
  • Men16547%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis57%
  4. Ischemic heart disease48%
  5. Diabetes43%
  6. Chronic kidney disease30%
  7. Mood disorders30%
  8. Anxiety28%

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

Dr. Lo's patients across all payers

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

Patient panel by age, all payers

Median age 73

Patient panel by sex, all payers

  • Women53%
  • Men47%

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

Dr. Simon K. Lo wrote 65 Medicare Part D claims in 2024

In 2024, Dr. Lo wrote 65 Medicare Part D claims for 45 patients. 85% of them were for generic drugs. CMS names the drug for 19 of them, across 1 drug with 11 or more claims each, at $72 in total drug cost. In 2023, CMS named 30 claims across 2 drugs.

Part D claims, 202465
Drugs named by CMS1
Total drug cost$72
Part D patients45

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

  • Generic55 claims85%
  • Brand-name and other10 claims15%

Dr. Lo'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. Lo's Part D claims, 2024

  • Antibiotics35%23 of 65 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: 302024: 1937%

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

See all prescribing by Dr. Lo

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. Simon K. Lo scored 93 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Lo for performance year 2024, reported as part of a group. Dr. Lo accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Lo as offering telehealth. CMS counts 274 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Lo, more than 94% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Lo's MIPS scores, performance year 2024

  • 93of 100Final score
  • 77.8of 100Quality
  • 98of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 71of 100Cost

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

Where Dr. Lo ranks in Medicare procedure volume

Upper gastrointestinal (GI) endoscopy for acid reflux
94th percentile274 procedures
Colonoscopy
65th percentile53 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

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. Simon K. Lo has 41 publications on record

Dmand AI links 41 papers to Dr. Lo, published from 2006 to 2025. 2019 was the busiest year, with 8. The most frequent topics are Endoscopy, Gastrointestinal, Asian People and Developmental Disabilities. Dr. Lo has published most often in Endoscopy. Dr. Lo's most frequent co-authors are Laith Hikmet Jamil, MD, Srinivas Gaddam, MD and Nicholas N. Nissen, MD.

Papers41
Years published2006 to 2025

Dr. Lo's papers by year, 2015 to 2025

Topics Dr. Lo writes about most

  • Endoscopy, Gastrointestinal
  • Asian People
  • Developmental Disabilities
  • Drainage
  • Endosonography
  • Faculty
  • Hong Kong
  • Parents

Dr. Lo's most frequent co-authors

Recent publications by Dr. Lo

See all 41 publications and co-authors

See who Dr. Lo researches with

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

How network discovery works

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

Dr. Simon K. Lo has worked on 5 clinical trials

Dmand AI links Dr. Lo to 5 clinical trials. Conditions studied include Gastroesophageal Reflux, Esophageal Motility Disorders and Pancreatic Neoplasms. Cedars-Sinai Medical Center sponsors the most, 2.

Conditions in Dr. Lo's trials

  • Gastroesophageal Reflux
  • Esophageal Motility Disorders
  • Pancreatic Neoplasms
  • Pancreatitis, Chronic
  • Sphincter of Oddi Dysfunction

Investigators on the most trials with Dr. Lo

Recent clinical trials with Dr. Lo

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Simon K. Lo received $123,806 in industry payments from 2016 to 2025

CMS Open Payments shows 144 general payments to Dr. Lo from 13 drug and device companies from 2016 to 2025. Education make up the largest share, 62% of the total. Olympus Corporation of the Americas paid the most, $83,622.

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

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

$123.8Kin total
  • Education$77,31962%
  • Consulting fees$25,23020%
  • Speaker and faculty fees$13,73011%
  • Travel and lodging$4,0913%
  • Food and beverage$3,4363%

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

Share is of all general payments to this clinician.

See all payments to Dr. Lo

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

Dr. Simon K. Lo has 5 awards and honors on record

Dmand AI lists 5 awards for Dr. Lo, most recently CMS Stage 1 EHR in 2013.

Awards and honors for Dr. Lo

  1. 2013
    • CMS Stage 1 EHR
    • Top Doctors:LA Area
  2. Undated
    • ACG Fellow
    • Checkbook Top Doc
    • Super Doc

Source: Dmand AI Professional Profile Data

Dr. Simon K. Lo graduated from New York University School of Medicine

Dr. Lo graduated from New York University School of Medicine in 1982. Dr. Lo is a member of ACG.

  1. Medical schoolNew York University School of Medicine
  2. Board certified in gastroenterologyAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Simon K. Lo accepts plans from 5 insurance carriers

Dr. Lo is in network with 5 carriers, including Blue Cross Blue Shield of Massachusetts, Blue Cross Blue Shield of Michigan and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Massachusetts
  • Blue Cross Blue Shield of Michigan
  • HCSC
  • Regence Health Plans
  • CMS Medicare

Plan types Dr. Lo accepts, by number of carriers

  1. Medicare5
  2. PPO4

Source: Dmand AI Insurance Network Data

Sources for Dr. Simon K. Lo'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
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
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. Simon K. Lo

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. Simon K. Lo's NPI number?

Dr. Simon K. Lo's NPI number is 1255368874. It was assigned on June 27, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Simon K. Lo?

Dr. Simon K. Lo is a gastroenterologist in West Hollywood, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Simon K. Lo practice?

Dr. Lo practices at 8700 Beverly Blvd, Los Angeles, CA 90048. Dr. Lo's primary practice is Cedars-Sinai Medical Center in Los Angeles, California, part of Cedars-Sinai Health System.

What is Dr. Simon K. Lo's office phone number?

The practice phone on file for Dr. Lo is (310) 423-5000.

What is Dr. Simon K. Lo's medical license number?

Dr. Lo's California license number on file is G51850.

Which hospitals is Dr. Simon K. Lo affiliated with?

Dr. Lo practices at Cedars-Sinai Medical Center in Los Angeles, California.

What medical group is Dr. Simon K. Lo part of?

Dr. Lo is linked to Cedars-Sinai Medical Center.

Does Dr. Simon K. Lo accept Medicare?

Yes. CMS data shows Dr. Lo billed Medicare for 518 services in 2024, and Dr. Lo accepts Medicare assignment.

Does Dr. Simon K. Lo offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Lo as offering telehealth services.

What is Dr. Simon K. Lo's MIPS score?

Dr. Lo's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Simon K. Lo see?

CMS counts 349 Medicare patients who saw Dr. Lo in 2024, with an average age of 75.

Is Dr. Simon K. Lo board certified?

Yes. Dr. Lo is board certified in gastroenterology by the American Board of Internal Medicine.

What services does Dr. Simon K. Lo bill to Medicare?

In 2024, Dr. Lo's most billed Medicare services were surgery: digestive system (43276), office visit, established patient (99213) and surgery: digestive system (43239).

Where did Dr. Simon K. Lo go to medical school?

Dr. Lo graduated from New York University School of Medicine in 1982.

What drugs does Dr. Simon K. Lo prescribe most?

In 2024 Medicare Part D data, Dr. Lo's most prescribed drugs by claims were Ciprofloxacin HCl.

Has Dr. Simon K. Lo received payments from drug or device companies?

CMS Open Payments shows $123,806 in general payments to Dr. Lo from 13 companies from 2016 to 2025. The largest total came from Olympus Corporation of the Americas.

How long has Dr. Simon K. Lo been practicing?

Dr. Lo graduated from medical school in 1982, 44 years ago.

Does Dr. Simon K. Lo do research?

Dmand AI links 41 publications to Dr. Lo, published from 2006 to 2025. Dr. Lo has worked on 5 clinical trials.

Who does Dr. Simon K. Lo publish with?

Dr. Lo's most frequent co-authors are Laith Hikmet Jamil, MD (19 shared papers), Srinivas Gaddam, MD (7 shared papers) and Nicholas N. Nissen, MD (6 shared papers).

What insurance does Dr. Simon K. Lo accept?

Dr. Lo is in network with 5 carriers, including Blue Cross Blue Shield of Massachusetts, Blue Cross Blue Shield of Michigan and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

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