Dr. Chi-Whei Lin, MD
- Medicare services, 2024
- 552
- Medicare patients, 2024
- 192
- Part D claims, 2024
- 6,411
- Hospital affiliations
- 1
- Industry payments
- $3,968
- Practice address
- 23521 Paseo De Valencia, Suite 204, Laguna Hills, CA 92653
- Practice phone
- Call (949) 458-2026
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Saddleback Pain and Surgical Center
Surgery Center - Medicare-Certified · Laguna Hills, California
Find Dr. Lin'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. Chi-Whei Lin is an internist in Laguna Hills, California
Dr. Lin practices at Saddleback Pain and Surgical Center in Laguna Hills, California.
Dr. Lin's NPI, 1114057254, was assigned on March 7, 2007. Dr. Lin graduated from Creighton University School of Medicine - Omaha in 1994. Dr. Lin holds California license A55435.
- NPI
- 1114057254NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5799742094
- NPI enumeration date
- March 7, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (949) 458-2026
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Chi-Whei Lin practices at Saddleback Pain and Surgical Center in Laguna Hills, California
Dr. Lin's primary practice is Saddleback Pain and Surgical Center, at 23521 Paseo De Valencia, Suite 204, Laguna Hills, CA 92653. The practice phone is (949) 458-2026.
- Saddleback Pain and Surgical Center23521 Paseo De Valencia, Suite 204, Laguna Hills, CA 92653Phone(949) 458-2026
Source: Dmand AI Affiliation Data
Dr. Chi-Whei Lin is affiliated with 4 sites of care and 1 medical group
Dr. Lin's primary practice is Saddleback Pain and Surgical Center in Laguna Hills, California. Dr. Lin is also affiliated with MemorialCare Saddleback Medical Center. The medical group on file is Saddleback Medical Group. Dmand AI also links Dr. Lin to 1 more physician office and 1 home health agency, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Chi-Whei Lin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lin practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Saddleback Pain and Surgical Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Chi-Whei Lin is one of 16,751 internists in California
Internal medicine is Dr. Lin's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Lin is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute gastroduodenitis, acute skin infection, alzheimer's disease, aneurysm, anxiety, atrial fibrillation and flutter, carpal tunnel syndrome and chronic diabetes among the conditions Dr. Lin treats.
Internists near Dr. Lin
Counts of internists 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. Chi-Whei Lin billed Medicare for 552 services in 2024
CMS data shows 552 Medicare services from Dr. Lin across 4 procedure codes in 2024, for 192 Medicare patients. Medicare paid $46,317 for them. Every service was in an office.
Dr. Lin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3032024: 26513%
- Other services
- 2023: 2192024: 2171%
- Tests and treatments
- 2023: 642024: 709%
- Surgery
- 2023: 112024: 0100%
Dr. Lin compared with the California median for internists, 2024
- Dr. Lin
- California median
- Medicare services
- 552vs 36153% above
- Medicare patients
- 192vs 15127% above
- Part D claims
- 5,828vs 42113.8 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Lin'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. Lin and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Chi-Whei Lin treated 192 Medicare patients in 2024, average age 78
CMS counts 192 Medicare patients who saw Dr. Lin in 2024. The largest group is 75 to 84, with 90 patients. 75% of them have high cholesterol, and 67% have high blood pressure. Their average risk score is 0.99, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Lin's median patient age at 75, with 63% women.
Dr. Lin's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Lin's Medicare patients by sex, 2024
- Women10655%
- Men8645%
Chronic conditions among Dr. Lin's Medicare patients, 2024
- High cholesterol75%
- High blood pressure67%
- Diabetes29%
- Arthritis26%
- Ischemic heart disease19%
- Atrial fibrillation14%
- Cancer13%
- Mood disorders12%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women63%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Chi-Whei Lin wrote 6,411 Medicare Part D claims in 2024
In 2024, Dr. Lin wrote 6,411 Medicare Part D claims for 457 patients. 91% of them were for generic drugs. CMS names the drug for 5,828 of them, across 107 drugs with 11 or more claims each, at $421,130 in total drug cost. In 2023, CMS named 5,950 claims across 108 drugs.
Dr. Lin's Part D claims by kind of drug, 2024
- Generic5,822 claims91%
- Brand-name and other589 claims9%
Dr. Lin'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. Lin's Part D claims, 2024
- Opioids1%48 of 6,411 claims
- Antibiotics4%231 of 6,411 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: 5,9502024: 5,8282%
Drugs named by CMS: 107 in 2024, 108 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. Chi-Whei Lin ranks in the 63rd percentile for removal of skin lesions in Medicare
Dr. Lin accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 17 procedures of removal of skin lesions by Dr. Lin, more than 63% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Lin ranks in Medicare procedure volume
- Removal of skin lesions
- 63rd percentile17 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Chi-Whei Lin received $3,968 in industry payments from 2016 to 2025
CMS Open Payments shows 188 general payments to Dr. Lin from 24 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 97% of the total. Astellas Pharma US Inc paid the most, $760.
General payments to Dr. Lin by program year, 2016 to 2025
General payments to Dr. Lin by kind, 2016 to 2025
- Food and beverage$3,84897%
- Education$1203%
Companies that paid Dr. Lin 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. Chi-Whei Lin has 1 award and honors on record
Dmand AI lists 1 award for Dr. Lin, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Lin
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Chi-Whei Lin graduated from Creighton University School of Medicine - Omaha
Dr. Lin graduated from Creighton University School of Medicine - Omaha in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Chi-Whei Lin accepts plans from 10 insurance carriers
Dr. Lin is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- +2 more carriersWith a free account
Plan types Dr. Lin accepts, by number of carriers
- Medicare7
- PPO7
- HMO4
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Chi-Whei Lin'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 DataDmand AI Org Hierarchy 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Chi-Whei Lin
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. Chi-Whei Lin's NPI number?
Dr. Chi-Whei Lin's NPI number is 1114057254. It was assigned on March 7, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Chi-Whei Lin?
Dr. Chi-Whei Lin is an internist in Laguna Hills, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Chi-Whei Lin practice?
Dr. Lin practices at 23521 Paseo De Valencia, Suite 204, Laguna Hills, CA 92653. Dr. Lin's primary practice is Saddleback Pain and Surgical Center in Laguna Hills, California. Dmand AI also links Dr. Lin to 1 physician office and 1 home health agency.
What is Dr. Chi-Whei Lin's office phone number?
The practice phone on file for Dr. Lin is (949) 458-2026.
What is Dr. Chi-Whei Lin's medical license number?
Dr. Lin holds California license A55435.
Which hospitals is Dr. Chi-Whei Lin affiliated with?
Dr. Lin is affiliated with MemorialCare Saddleback Medical Center.
What medical group is Dr. Chi-Whei Lin part of?
Dr. Lin is linked to Saddleback Medical Group.
Does Dr. Chi-Whei Lin accept Medicare?
Yes. CMS data shows Dr. Lin billed Medicare for 552 services in 2024, and Dr. Lin accepts Medicare assignment.
How many Medicare patients does Dr. Chi-Whei Lin see?
CMS counts 192 Medicare patients who saw Dr. Lin in 2024, with an average age of 78.
What services does Dr. Chi-Whei Lin bill to Medicare?
In 2024, Dr. Lin's most billed Medicare services were office visit, established patient (99213), medicare service (G0439) and vaccine or vaccine administration (90662).
Show 5 more questionsShow fewer questions
Where did Dr. Chi-Whei Lin go to medical school?
Dr. Lin graduated from Creighton University School of Medicine - Omaha in 1994.
What drugs does Dr. Chi-Whei Lin prescribe most?
In 2024 Medicare Part D data, Dr. Lin's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Losartan Potassium.
Has Dr. Chi-Whei Lin received payments from drug or device companies?
CMS Open Payments shows $3,968 in general payments to Dr. Lin from 24 companies from 2016 to 2025. The largest total came from Astellas Pharma US Inc.
How long has Dr. Chi-Whei Lin been practicing?
Dr. Lin graduated from medical school in 1994, 32 years ago.
What insurance does Dr. Chi-Whei Lin accept?
Dr. Lin is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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