Dr. Joseph Lengeeh Lin, MD

  • West Covina, CA
  • Ophthalmologist
NPI1346404340PAC ID5496933491
Medicare services, 2024
4,424
Medicare patients, 2024
329
Part D claims, 2024
1,379
Publications
1
MIPS score, 2024
100
Practice address
1135 S Sunset Ave, West Covina, CA 91790
Practice phone
Call (626) 653-9444
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

California Oculoplastic Consultants

West Covina, California

See all 4 affiliations

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Dr. Joseph Lengeeh Lin is an ophthalmologist in West Covina, California

Dr. Lin practices at California Oculoplastic Consultants in West Covina, California.

Dr. Lin's NPI, 1346404340, was assigned on July 18, 2008. Dr. Lin graduated from The Johns Hopkins University School of Medicine in 2004. Dr. Lin holds California license A114615.

NPI and contact details
Medicare PAC ID
5496933491
NPI enumeration date
July 18, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(626) 653-9444
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
48
Medical school graduation
2004

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

Dr. Joseph Lengeeh Lin practices at California Oculoplastic Consultants in West Covina, California

Dr. Lin's primary practice is California Oculoplastic Consultants, at 1135 S Sunset Ave, West Covina, CA 91790 in Los Angeles County. The practice phone is (626) 653-9444.

  • California Oculoplastic Consultants
    1135 S Sunset Ave, West Covina, CA 91790 · Los Angeles CountyPhone(626) 653-9444

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Joseph Lengeeh Lin is affiliated with 2 sites of care and 2 medical groups

Dr. Lin's primary practice is California Oculoplastic Consultants in West Covina, California. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Lin to 1 more group practice or clinic and 1 medical group, each named with a free account.

See all 4 affiliations for Dr. Lin

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Joseph Lengeeh Lin's practice

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

EHR by site
SiteEHR vendor and product
California Oculoplastic ConsultantsAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Joseph Lengeeh Lin is one of 2,621 ophthalmologists in California

Ophthalmology is Dr. Lin's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Lin is licensed in California.

Specialties and state licenses

  • Ophthalmology, CaliforniaPrimaryLicense A114615 · 2010 to 2026 · taxonomy 207W00000X

Clinical focus

Dmand AI lists dry eye, eye infection or inflammation and eyelid inflammation among the conditions Dr. Lin treats.

Ophthalmologists near Dr. Lin

Counts of ophthalmologists with a Dmand AI profile, by place and practice. Each opens the list.

2,621ophthalmologists in California
7ophthalmologists in West Covina

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Joseph Lengeeh Lin billed Medicare for 4,424 services in 2024

CMS data shows 4,424 Medicare services from Dr. Lin across 14 procedure codes in 2024, for 329 Medicare patients. Medicare paid $196,648 for them. Every service was in an office.

Medicare services, 20244,424
Medicare patients329
Paid by Medicare$196,648
Procedure codes14

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

  • 2023
  • 2024
Drugs given in the office
2023: 2,5002024: 3,10924%
Tests and treatments
2023: 4872024: 54512%
Office and hospital visits
2023: 4912024: 5318%
Surgery
2023: 2412024: 2391%

Dr. Lin compared with the California median for ophthalmologists, 2024

  • Dr. Lin
  • California median
Medicare services
4,424vs 1,0794.1 times
Medicare patients
329vs 42122% below
Part D claims
1,309vs 6182.1 times

Medians across 2,568 ophthalmologists 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.

See all procedures by Dr. Lin

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

Dr. Joseph Lengeeh Lin treated 329 Medicare patients in 2024, average age 75

CMS counts 329 Medicare patients who saw Dr. Lin in 2024. The largest group is 75 to 84, with 131 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 33% are also on Medicaid. Their average risk score is 1.25, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Lin's median patient age at 69, with 64% women.

Medicare patients, 2024329
Average age75
Average risk score1.25
Also on Medicaid33%

Dr. Lin's Medicare patients by age, 2024

Dr. Lin's Medicare patients by sex, 2024

  • Women21565%
  • Men11435%

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

  1. High cholesterol75%
  2. High blood pressure74%
  3. Arthritis51%
  4. Diabetes39%
  5. Ischemic heart disease27%
  6. Osteoporosis26%
  7. Anxiety24%
  8. Chronic kidney disease24%

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 69

Patient panel by sex, all payers

  • Women64%
  • Men35%

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

Dr. Joseph Lengeeh Lin wrote 1,379 Medicare Part D claims in 2024

In 2024, Dr. Lin wrote 1,379 Medicare Part D claims for 444 patients. 86% of them were for generic drugs. CMS names the drug for 1,309 of them, across 8 drugs with 11 or more claims each, at $26,128 in total drug cost. In 2023, CMS named 1,755 claims across 8 drugs.

Part D claims, 20241,379
Drugs named by CMS8
Total drug cost$26,128
Part D patients444

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

  • Generic1,183 claims86%
  • Brand-name196 claims14%

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

  • Opioids18%254 of 1,379 claims
  • Antibiotics7%101 of 1,379 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: 1,7552024: 1,30925%

Drugs named by CMS: 8 in 2024, 8 in 2023.

See all prescribing by Dr. Lin

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. Joseph Lengeeh Lin scored 100 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Lin for performance year 2024, reported as part of a group. Dr. Lin accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 50 procedures of melanoma (skin cancer) excision by Dr. Lin, more than 86% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Dr. Lin's MIPS scores, performance year 2024

  • 100of 100Final score
  • 100of 100Quality
  • 40of 100Improvement Activities

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

Where Dr. Lin ranks in Medicare procedure volume

Melanoma (skin cancer) excision
86th percentile50 procedures

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

Cataract surgery: 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. Joseph Lengeeh Lin has 1 publication on record

Dmand AI links 1 paper to Dr. Lin.

Papers1

Recent publications by Dr. Lin

See all 1 publications and co-authors

See who Dr. Lin researches with

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

How network discovery works

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

Dr. Joseph Lengeeh Lin received $1,045 in industry payments from 2018 to 2025

CMS Open Payments shows 11 general payments to Dr. Lin from 6 drug and device companies from 2018 to 2025. Consulting fees make up the largest share, 55% of the total. Abbott Laboratories paid the most, $654.

General payments to Dr. Lin by program year, 2018 to 2025

General payments to Dr. Lin by kind, 2018 to 2025

$1Kin total
  • Consulting fees$57555%
  • Food and beverage$47045%

Companies that paid Dr. Lin the most, 2018 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Lin

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

Dr. Joseph Lengeeh Lin has 1 award and honors on record

Dmand AI lists 1 award for Dr. Lin.

Awards and honors for Dr. Lin

  1. Undated
    • ACS Fellow

Source: Dmand AI Professional Profile Data

Dr. Joseph Lengeeh Lin graduated from The Johns Hopkins University School of Medicine

Dr. Lin graduated from The Johns Hopkins University School of Medicine in 2004. Dr. Lin is a member of AAO and ACS.

  1. Medical schoolThe Johns Hopkins University School of Medicine

Source: Dmand AI Professional Profile Data

Dr. Joseph Lengeeh Lin accepts plans from 17 insurance carriers

Dr. Lin is in network with 17 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.

Plan types Dr. Lin accepts, by number of carriers

  1. Medicare10
  2. HMO9
  3. PPO9
  4. POS5
  5. EPO4
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Joseph Lengeeh Lin'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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
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. Joseph Lengeeh 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. Joseph Lengeeh Lin's NPI number?

Dr. Joseph Lengeeh Lin's NPI number is 1346404340. It was assigned on July 18, 2008, and it is active in the NPI Registry.

What kind of doctor is Dr. Joseph Lengeeh Lin?

Dr. Joseph Lengeeh Lin is an ophthalmologist in West Covina, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).

Where does Dr. Joseph Lengeeh Lin practice?

Dr. Lin practices at 1135 S Sunset Ave, West Covina, CA 91790. Dr. Lin's primary practice is California Oculoplastic Consultants in West Covina, California. Dmand AI also links Dr. Lin to 1 group practice or clinic and 1 medical group.

What is Dr. Joseph Lengeeh Lin's office phone number?

The practice phone on file for Dr. Lin is (626) 653-9444.

What is Dr. Joseph Lengeeh Lin's medical license number?

Dr. Lin holds California license A114615.

What medical group is Dr. Joseph Lengeeh Lin part of?

Dr. Lin is linked to Southern California Permanente Medical Group. Dmand AI links Dr. Lin to 1 more medical group.

Does Dr. Joseph Lengeeh Lin accept Medicare?

Yes. CMS data shows Dr. Lin billed Medicare for 4,424 services in 2024, and Dr. Lin accepts Medicare assignment.

What is Dr. Joseph Lengeeh Lin's MIPS score?

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

How many Medicare patients does Dr. Joseph Lengeeh Lin see?

CMS counts 329 Medicare patients who saw Dr. Lin in 2024, with an average age of 75.

What services does Dr. Joseph Lengeeh Lin bill to Medicare?

In 2024, Dr. Lin's most billed Medicare services were injected or infused drug (J0585), eye exam or test (92285) and office visit, established patient (99214).

Show 6 more questionsShow fewer questions

Where did Dr. Joseph Lengeeh Lin go to medical school?

Dr. Lin graduated from The Johns Hopkins University School of Medicine in 2004.

What drugs does Dr. Joseph Lengeeh Lin prescribe most?

In 2024 Medicare Part D data, Dr. Lin's most prescribed drugs by claims were Erythromycin, Diazepam and Hydrocodone-Acetaminophen.

Has Dr. Joseph Lengeeh Lin received payments from drug or device companies?

CMS Open Payments shows $1,045 in general payments to Dr. Lin from 6 companies from 2018 to 2025. The largest total came from Abbott Laboratories.

How long has Dr. Joseph Lengeeh Lin been practicing?

Dr. Lin graduated from medical school in 2004, 22 years ago.

Does Dr. Joseph Lengeeh Lin do research?

Dmand AI links 1 publication to Dr. Lin.

What insurance does Dr. Joseph Lengeeh Lin accept?

Dr. Lin is in network with 17 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.

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