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Mark Lin

Ophthalmology • Irvine, CA

Active NPI 1760984470 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

17582 Manchester Ave
Irvine, CA 926146646

Call 9493505582 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

17582 Manchester Ave

Irvine, CA 926146646

Telephone 9493505582
Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: City Of Hope Medical Foundation. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

University Of California, Irvine, California College Of Medicine

Graduation Year

2018

30-day fills

161 standardized 30-day fills in 2021

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$4,318 in 2021

The total cost of these prescriptions in 2021, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2021.

Open Payments general payments, program year 2025

All general payments: $100.64 across 2 records.

By nature of payment

  • Food and Beverage: $100.64 across 2 records.

Reporting-company totals

  • Alcon Vision LLC: $68.99 across 1 record.
  • Sight Sciences, Inc.: $31.65 across 1 record.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

8 years (graduated 2018)

CMS Doctors and Clinicians data list 2018 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2018

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Mark Lin has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Mark Lin as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Irvine and California

Billing and prescribing volume is not a quality rating.

Medicare Part D

Comparisons use 2024 data. The latest CMS data for Mark Lin are from 2021.

42 active clinicians are listed under Ophthalmology with a practice address in Irvine, CA (2,902 in California).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Irvine

7.1% of these 42 clinicians have the CMS telehealth indicator.

69% of these 42 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Part D Prescribers (2021), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments · Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $100.64.

Manufacturer Payment Nature Product Type Amount ($)
Alcon Vision LLC
Food and Beverage
In-kind items and services
HYDRUS Microstent General $68.99
Sight Sciences, Inc.
Food and Beverage
In-kind items and services
OMNI SURGICAL SYSTEM General $31.65

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2021.

CMS Part D · Data Year 2021
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Latanoprost Latanoprost 45 2,030 $726.09 13
Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat 22 1,453 $691.95 —
Brimonidine Tartrate Brimonidine Tartrate 15 495 $175.86 —
Dorzolamide Hcl Dorzolamide Hcl 13 450 $496.84 —
Alphagan P Brimonidine Tartrate 11 278 $2,227.49 —

Source: CMS Part D by Provider and Drug, 2021; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2024-03-04
Ophthalmology Primary Specialty

NUCC Taxonomy Code: 207W00000X

License # reported to NPPES CA A164754

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

Student in an Organized Health Care Education/Training Program

NUCC Taxonomy Code: 390200000X

An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Medical Board of California.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - OPHTHALMOLOGY

Medicare Enrollment ID

I20240724000321

Enrollment State Jurisdiction

CA

PECOS Control ID

3274972518

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

City Of Hope Medical Foundation

1500 Duarte Rd, Duarte, CA 910103012

Phone: 6262564673

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

7 Historical Events
🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 04, 2024

Ophthalmology (license number reported to NPPES: CA A164754)

âś…
NPI Profile Active March 08, 2018

NPI status registered as active in NPPES database

📍
Practice Location (Initial Record) March 08, 2018

Registered at 17582 MANCHESTER AVE, IRVINE, CA 926146646 (Tel: 9493505582)

📍
Business Mailing Address (Initial Record) March 08, 2018

Registered at 17582 MANCHESTER AVE, IRVINE, CA 926146646 (Tel: 9493505582)

👤
Provider Name / Credentials (Initial Record) March 08, 2018

Recorded as MARK LIN

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 08, 2018

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration March 08, 2018

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1760984470
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 08, 2018
Last Update: March 04, 2024
Sole Proprietor: No

Other Ophthalmology Specialists in Irvine

All Ophthalmology Specialists in Irvine

Mailing Address

17582 Manchester Ave

Irvine, CA 926146646

Phone: 9493505582

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.