Dr. Gene Lloyd Syn, MD
- Medicare services, 2024
- 504
- Medicare patients, 2024
- 232
- Part D claims, 2024
- 210
- MIPS score, 2024
- 75
- Hospital affiliations
- 1
- Practice address
- 23961 Calle Magdalena, Laguna Hills, CA 92653
- Practice phone
- Call (949) 609-0500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Dr. Gene L. Syn, MD
Physician office · Laguna Hills, California
Find Dr. Syn'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. Gene Lloyd Syn is a colorectal surgeon in Laguna Hills, California
Dr. Syn practices at Dr. Gene L. Syn, MD in Laguna Hills, California.
Dr. Syn's NPI, 1487842720, was assigned on October 11, 2007. Dr. Syn graduated from David Geffen School of Medicine at UCLA in 1992. Dr. Syn holds California license G79692.
- NPI
- 1487842720NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5597791996
- NPI enumeration date
- October 11, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (949) 609-0500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gene Lloyd Syn practices at Dr. Gene L. Syn, MD in Laguna Hills, California
Dr. Syn's primary practice is Dr. Gene L. Syn, MD, at 23961 Calle Magdalena, Laguna Hills, CA 92653. The practice phone is (949) 609-0500.
- Dr. Gene L. Syn, MD23961 Calle Magdalena, Laguna Hills, CA 92653Phone(949) 609-0500
Source: Dmand AI Affiliation Data
Dr. Gene Lloyd Syn is affiliated with 3 sites of care and 1 medical group
Dr. Syn's primary practice is Dr. Gene L. Syn, MD in Laguna Hills, California. Dr. Syn is also affiliated with Emanate Health Inter-Community Hospital. The medical group on file is Minimally Invasive Medical Group. Dmand AI also links Dr. Syn to 1 more group practice or clinic, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gene Lloyd Syn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Syn practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Gene L. Syn, MD | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gene Lloyd Syn is one of 187 colorectal surgeons in California
Colon and rectal surgery is Dr. Syn's primary specialty in the NPI Registry, under taxonomy code 208C00000X. Dr. Syn is board certified in colon & rectal surgery by the American Board of Colon and Rectal Surgery. Dmand AI has Dr. Syn's licenses on file in 2 states: California and Maryland.
Specialties and state licenses
- Colon and rectal surgery, CaliforniaPrimary
- Maryland license
Clinical focus
Dmand AI lists colonoscopy and hemorrhoids among the conditions Dr. Syn treats.
Colorectal surgeons near Dr. Syn
Counts of colorectal 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. Gene Lloyd Syn billed Medicare for 504 services in 2024
CMS data shows 504 Medicare services from Dr. Syn across 6 procedure codes in 2024, for 232 Medicare patients. Medicare paid $71,000 for them.
Dr. Syn's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 3302024: 3203%
- Office and hospital visits
- 2023: 2192024: 18416%
Where Dr. Syn's Medicare services took place, 2024
- In an office49298%
- In a facility122%
Dr. Syn compared with the California median for colorectal surgeons, 2024
- Dr. Syn
- California median
- Medicare services
- 504vs 27087% above
- Medicare patients
- 232vs 15550% above
- Part D claims
- 160vs 712.3 times
Medians across 175 colorectal surgeons in California with Dmand AI profiles that report each measure.
Dr. Syn'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.
Need commercial claims for Dr. Syn?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Syn and other colorectal surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gene Lloyd Syn treated 232 Medicare patients in 2024, average age 75
CMS counts 232 Medicare patients who saw Dr. Syn in 2024. The largest group is 65 to 74, with 114 patients. 75% of them have high cholesterol, and 67% have high blood pressure. 6% are also on Medicaid. Their average risk score is 1.10, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Syn's median patient age at 55, with 44% women.
Dr. Syn's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Syn's Medicare patients by sex, 2024
- Women12052%
- Men11248%
Chronic conditions among Dr. Syn's Medicare patients, 2024
- High cholesterol75%
- High blood pressure67%
- Arthritis44%
- Anxiety22%
- Diabetes20%
- Ischemic heart disease19%
- Cancer16%
- Chronic kidney disease16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Syn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women44%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gene Lloyd Syn wrote 210 Medicare Part D claims in 2024
In 2024, Dr. Syn wrote 210 Medicare Part D claims for 103 patients. 97% of them were for generic drugs. CMS names the drug for 160 of them, across 3 drugs with 11 or more claims each, at $1,936 in total drug cost. In 2023, CMS named 137 claims across 4 drugs.
Dr. Syn's Part D claims by kind of drug, 2024
- Generic204 claims97%
- Brand-name and other6 claims3%
Dr. Syn'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. Syn's Part D claims, 2024
- Opioids20%43 of 210 claims
- Antibiotics6%12 of 210 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: 1372024: 16017%
Drugs named by CMS: 3 in 2024, 4 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
Dr. Gene Lloyd Syn scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Syn for performance year 2024, reported individually. Dr. Syn accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 244 procedures of colonoscopy by Dr. Syn, more than 96% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
Where Dr. Syn ranks in Medicare procedure volume
- Colonoscopy
- 96th percentile244 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Skin biopsy: 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. Gene Lloyd Syn received $1,952 in industry payments from 2016 to 2025
CMS Open Payments shows 73 general payments to Dr. Syn from 19 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 86% of the total. Axonics, Inc. paid the most, $903.
General payments to Dr. Syn by program year, 2016 to 2025
General payments to Dr. Syn by kind, 2016 to 2025
- Food and beverage$1,67786%
- Travel and lodging$27214%
- Education$30%
Companies that paid Dr. Syn 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. Gene Lloyd Syn graduated from David Geffen School of Medicine at UCLA
Dr. Syn graduated from David Geffen School of Medicine at UCLA in 1992.
- Medical school
- Board certified in colon & rectal surgery
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Gene Lloyd Syn accepts plans from 16 insurance carriers
Dr. Syn is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Humana
- LA Care
- Blue Cross Blue Shield of Massachusetts
- +8 more carriersWith a free account
Plan types Dr. Syn accepts, by number of carriers
- Medicare10
- PPO10
- HMO9
- EPO4
- POS3
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Gene Lloyd Syn'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 Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| 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. Gene Lloyd Syn
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. Gene Lloyd Syn's NPI number?
Dr. Gene Lloyd Syn's NPI number is 1487842720. It was assigned on October 11, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Gene Lloyd Syn?
Dr. Gene Lloyd Syn is a colorectal surgeon in Laguna Hills, California. The primary specialty in the NPI Registry is Colon & Rectal Surgery Physician (taxonomy code 208C00000X).
Where does Dr. Gene Lloyd Syn practice?
Dr. Syn practices at 23961 Calle Magdalena, Laguna Hills, CA 92653. Dr. Syn's primary practice is Dr. Gene L. Syn, MD in Laguna Hills, California. Dmand AI also links Dr. Syn to 1 group practice or clinic.
What is Dr. Gene Lloyd Syn's office phone number?
The practice phone on file for Dr. Syn is (949) 609-0500.
What is Dr. Gene Lloyd Syn's medical license number?
Dr. Syn holds California license G79692, one of the licenses on file in 2 states.
Which states has Dr. Gene Lloyd Syn been licensed in?
Dmand AI has state licenses on file for Dr. Syn in California (1994 to 2026) and Maryland (1997 to 1999).
Which hospitals is Dr. Gene Lloyd Syn affiliated with?
Dr. Syn is affiliated with Emanate Health Inter-Community Hospital.
What medical group is Dr. Gene Lloyd Syn part of?
Dr. Syn is linked to Minimally Invasive Medical Group.
Does Dr. Gene Lloyd Syn accept Medicare?
Yes. CMS data shows Dr. Syn billed Medicare for 504 services in 2024, and Dr. Syn accepts Medicare assignment.
What is Dr. Gene Lloyd Syn's MIPS score?
Dr. Syn's MIPS final score for performance year 2024 is 75 out of 100, reported individually.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Gene Lloyd Syn see?
CMS counts 232 Medicare patients who saw Dr. Syn in 2024, with an average age of 75.
Is Dr. Gene Lloyd Syn board certified?
Yes. Dr. Syn is board certified in colon & rectal surgery by the American Board of Colon and Rectal Surgery.
What services does Dr. Gene Lloyd Syn bill to Medicare?
In 2024, Dr. Syn's most billed Medicare services were surgery: digestive system (45300), office visit, new patient (99204) and surgery: digestive system (46221).
Where did Dr. Gene Lloyd Syn go to medical school?
Dr. Syn graduated from David Geffen School of Medicine at UCLA in 1992.
What drugs does Dr. Gene Lloyd Syn prescribe most?
In 2024 Medicare Part D data, Dr. Syn's most prescribed drugs by claims were Hydrocortisone, Oxycodone-Acetaminophen and Procto-Med Hc.
Has Dr. Gene Lloyd Syn received payments from drug or device companies?
CMS Open Payments shows $1,952 in general payments to Dr. Syn from 19 companies from 2016 to 2025. The largest total came from Axonics, Inc.
How long has Dr. Gene Lloyd Syn been practicing?
Dr. Syn graduated from medical school in 1992, 34 years ago.
What insurance does Dr. Gene Lloyd Syn accept?
Dr. Syn is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.
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