Dr. Christopher E. Lai, MD
- Medicare services, 2024
- 127
- Medicare patients, 2026
- 82
- Part D claims, 2026
- 12
- Hospital affiliations
- 4
- Industry payments
- $7,159
- Practice address
- 328 S 1st St, Alhambra, CA 91801
- Practice phone
- Call (626) 457-6333
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Advance Surgeons Medical Group Inc
Alhambra, California
Find Dr. Lai'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. Christopher E. Lai is a general surgeon in Alhambra, California
Dr. Lai practices at Advance Surgeons Medical Group Inc in Alhambra, California.
Dr. Lai's NPI, 1972827871, was assigned on March 22, 2010. Dr. Lai graduated from Wayne State University School of Medicine in 2010. Dr. Lai holds Michigan license 4301114101.
- NPI
- 1972827871NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5890003529
- NPI enumeration date
- March 22, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (626) 457-6333
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Christopher E. Lai practices at Advance Surgeons Medical Group Inc in Alhambra, California
Dr. Lai's primary practice is Advance Surgeons Medical Group Inc, at 328 S 1st St, Alhambra, CA 91801 in Los Angeles County. The practice phone is (626) 457-6333.
- Advance Surgeons Medical Group Inc328 S 1st St, Alhambra, CA 91801 · Los Angeles CountyPhone(626) 457-6333
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Christopher E. Lai is affiliated with 6 sites of care and 1 medical group
Dr. Lai's primary practice is Advance Surgeons Medical Group Inc in Alhambra, California. Dr. Lai is also affiliated with Alhambra Hospital Medical Center. The medical group on file is Advance Surgeons Medical Group. Dmand AI also links Dr. Lai to 3 more hospitals and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Christopher E. Lai's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lai practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Advance Surgeons Medical Group Inc | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Christopher E. Lai is one of 2,926 general surgeons in California
Surgery is Dr. Lai's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Lai is licensed in Michigan.
Specialties and state licenses
- Surgery, MichiganPrimary
General surgeons near Dr. Lai
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. Christopher E. Lai billed Medicare for 127 services in 2024
CMS data shows 127 Medicare services from Dr. Lai across 4 procedure codes in 2024, for 82 Medicare patients. Medicare paid $13,379 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Lai's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 272024: 127370%
Dr. Lai compared with the California median for general surgeons, 2024
- Dr. Lai
- California median
- Medicare services
- 127vs 16623% below
- Medicare patients
- 82vs 12132% below
- Part D claims
- 13vs 3462% below
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. Lai'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lai and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Christopher E. Lai treated 82 Medicare patients in 2026, average age 77
CMS counts 82 Medicare patients who saw Dr. Lai in 2026. The largest group is 65 to 74, with 32 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 3.14, 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. Lai's median patient age at 58, with 44% women.
Dr. Lai's Medicare patients by age, 2026
CMS leaves out age groups with fewer than 11 patients.
Dr. Lai's Medicare patients by sex, 2026
- Women4454%
- Men3846%
Chronic conditions among Dr. Lai's Medicare patients, 2026
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease66%
- Diabetes63%
- Arthritis48%
- Ischemic heart disease45%
- Heart failure38%
- COPD35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lai'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
- Women44%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data
Dr. Christopher E. Lai wrote 12 Medicare Part D claims in 2026
In 2026, Dr. Lai wrote 12 Medicare Part D claims for 11 patients. 92% of them were for generic drugs. They cover 1 drug, with $37 in total drug cost. In 2022, CMS named 13 claims across 1 drug.
Dr. Lai's Part D claims by kind of drug, 2026
- Generic11 claims92%
- Brand-name and other1 claims8%
Dr. Lai'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.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 132023: 13No change
Drugs named by CMS: 1 in 2023, 1 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2026 data
How Dr. Christopher E. Lai takes part in Medicare
Dr. Lai accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 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); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Christopher E. Lai received $7,159 in industry payments from 2016 to 2025
CMS Open Payments shows 31 general payments to Dr. Lai from 11 drug and device companies from 2016 to 2025. Education make up the largest share, 49% of the total. Intuitive Surgical, Inc. paid the most, $4,614. It also lists 1 research payment totaling $272 in 2017.
General payments to Dr. Lai by program year, 2016 to 2025
General payments to Dr. Lai by kind, 2016 to 2025
- Education$3,50049%
- Travel and lodging$2,50535%
- Food and beverage$1,15416%
Companies that paid Dr. Lai 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. Christopher E. Lai graduated from Wayne State University School of Medicine
Dr. Lai graduated from Wayne State University School of Medicine in 2010.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Christopher E. Lai'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)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 |
| 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. Christopher E. Lai
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. Christopher E. Lai's NPI number?
Dr. Christopher E. Lai's NPI number is 1972827871. It was assigned on March 22, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Christopher E. Lai?
Dr. Christopher E. Lai is a general surgeon in Alhambra, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Christopher E. Lai practice?
Dr. Lai practices at 328 S 1st St, Alhambra, CA 91801. Dr. Lai's primary practice is Advance Surgeons Medical Group Inc in Alhambra, California. Dmand AI also links Dr. Lai to 3 hospitals and 1 group practice or clinic, and a free account names each one.
What is Dr. Christopher E. Lai's office phone number?
The practice phone on file for Dr. Lai is (626) 457-6333. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. Christopher E. Lai's email address?
Dmand AI checks professional and personal email addresses for Dr. Lai through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. Christopher E. Lai's medical license number?
Dr. Lai holds Michigan license 4301114101.
Which hospitals is Dr. Christopher E. Lai affiliated with?
Dr. Lai is affiliated with Alhambra Hospital Medical Center. Dmand AI links Dr. Lai to 3 more hospitals, named with a free account.
What medical group is Dr. Christopher E. Lai part of?
Dr. Lai is linked to Advance Surgeons Medical Group.
Who does Dr. Christopher E. Lai practice with?
Dmand AI links 9 HCPs to Dr. Lai's primary medical group. A free account lists them, with verified contacts.
Does Dr. Christopher E. Lai accept Medicare?
Yes. CMS data shows Dr. Lai billed Medicare for 127 services in 2024, and Dr. Lai accepts Medicare assignment.
Show 7 more questionsShow fewer questions
How many Medicare patients does Dr. Christopher E. Lai see?
CMS counts 82 Medicare patients who saw Dr. Lai in 2026, with an average age of 77.
What services does Dr. Christopher E. Lai bill to Medicare?
In 2024, Dr. Lai's most billed Medicare services were hospital inpatient care (99222), hospital inpatient care (99233) and hospital inpatient care (99223).
Where did Dr. Christopher E. Lai go to medical school?
Dr. Lai graduated from Wayne State University School of Medicine in 2010.
What drugs does Dr. Christopher E. Lai prescribe most?
In 2023 Medicare Part D data, Dr. Lai's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Christopher E. Lai received payments from drug or device companies?
CMS Open Payments shows $7,159 in general payments to Dr. Lai from 11 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Christopher E. Lai been practicing?
Dr. Lai graduated from medical school in 2010, 16 years ago.
What EHR does Dr. Christopher E. Lai's practice use?
Dmand AI tracks the EHR system at Advance Surgeons Medical Group Inc and at 5 more affiliated sites. The vendor and product are available with a free Dmand AI account.
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