Medicare Enrolled

Dr. Mira Lim, M.D.

Ophthalmology · Walnut Creek, CA
Practice pattern: Clinical Cardiology — Primarily office-based clinical cardiology
Low-engagement
365 LENNON LN, Walnut Creek, CA 94598
9259470888
In practice since 2008 (17 years)
NPI: 1194987628 verify on NPPES ↗
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating. This page presents federal public records about Dr. Lim from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
Are you Dr. Lim? Request a correction or review of any data shown here. Provider portal →

What this data tells you about Dr. Lim

Dr. Mira Lim is an ophthalmology specialist in Walnut Creek, CA, with 17 years of NPI registration. Based on federal Medicare data, Dr. Lim performed 3,212 Medicare services across 2,392 unique beneficiaries.

Between the years covered by Open Payments, Dr. Lim received a total of $4,259 from 35 pharmaceutical and/or device companies across 150 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in ophthalmology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.

The Data Coverage level for Dr. Lim is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.

✓ 17 years in practice ▲ Top 31% volume in CA $4,259 industry payments

Medicare Practice Summary

Medicare Utilization ↗
3,212
Medicare services
Top 31% in CA for ophthalmology
2,392
Unique beneficiaries
$124
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~189 Medicare services per year of practice

Top procedures by volume

Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.

Procedure Volume Avg. paid Avg. submitted
Office visit, established patient (30-39 min)
A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition.
866 $107 $300
Office visit, established patient (20-29 min)
An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition.
588 $75 $200
Corneal topography and eye depth measurement
This procedure measures the curvature and depth of the cornea, the clear front surface of the eye.
337 $36 $200
Cataract surgery with lens implant
Surgical removal of the clouded natural lens of the eye and replacement with an artificial prosthetic lens to restore vision.
262 $516 $1,500
Optic nerve imaging (OCT scan)
Imaging of the optic nerve.
174 $32 $150
Visual field test, extended
A test that maps your complete field of vision to detect blind spots or peripheral vision loss. Extended testing provides a more detailed assessment than a standard visual field exam.
142 $58 $150
Comprehensive eye exam, new patient
A comprehensive examination of the visual system performed for a new patient.
132 $120 $400
CT scan of cornea
A computed tomography scan used to create detailed images of the cornea, the clear front part of the eye.
128 $32 $100
Retinal imaging (OCT scan)
This procedure involves imaging the retina to visualize its structure. It is used to examine the back of the eye.
108 $37 $150
Comprehensive eye exam, established patient
A comprehensive examination of the visual system performed for a patient who has previously been seen by the provider.
103 $90 $400
New patient office visit (30-44 min)
An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range.
90 $93 $300
New patient office visit (45-59 min)
An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter.
84 $132 $400
Contact lens fitting for eye surface disease
This procedure involves the fitting of a contact lens specifically intended to treat or manage a disease affecting the surface of the eye.
65 $34 $108
Laser removal of recurring cataract
A laser procedure to remove a recurring cataract within the lens capsule.
43 $342 $865
Tear duct plug insertion
A procedure to insert a small plug into the tear duct opening to help retain tears on the eye surface.
31 $117 $350
Eyelash removal with forceps
This procedure involves the manual removal of eyelashes using forceps. It is a mechanical extraction method performed on the eyelid area.
26 $19 $164
Complex cataract removal with lens implant
A surgical procedure to remove a cataract from the eye and insert an artificial lens to restore vision.
20 $673 $2,000
Corneal transplant, outer layer
Surgical procedure to replace the outer layer of the cornea with donor tissue.
13 $1,113 $3,000
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
8.6% high complexity
12.8% medium
78.7% routine

Industry Payment Transparency

Open Payments through 2024 ↗
$4,259
Total received (2018-2024)
Avg $608/year across 7 years
Top 28% in CA for ophthalmology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
35
Companies
150
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →

Payment profile

Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.

Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$4,259 (100.0%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$877
2023
$505
2022
$1,059
2021
$599
2020
$323
2019
$494
2018
$403

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
Glaukos Corporation
$202
Alcon Vision LLC
$175
Oyster Point Pharma, Inc.
$92
Amgen Inc.
$80
Bausch & Lomb Americas Inc.
$71
Mallinckrodt Hospital Products Inc.
$60
Harrow Eye, LLC
$50
RxSight Inc
$49
SUN PHARMACEUTICAL INDUSTRIES INC.
$32
Tarsus Pharmaceuticals, Inc.
$25
ANI Pharmaceuticals, Inc.
$23
Dompe US, Inc.
$17
Top 3 companies account for 53.5% of 2024 payments
All-time payments by company (2018-2024) ›
Alcon Vision LLC
$759
Glaukos Corporation
$544
Johnson & Johnson Surgical Vision, Inc.
$299
Mallinckrodt Hospital Products Inc.
$260
Oyster Point Pharma, Inc.
$205
Sun Pharmaceutical Industries Inc.
$201
Dompe US, Inc.
$159
Aerie Pharmaceuticals, Inc.
$138
Bausch & Lomb Americas Inc.
$134
GLAUKOS CORPORATION
$132
TissueTech, Inc.
$127
Allergan Inc.
$113
Novartis Pharmaceuticals Corporation
$111
Horizon Therapeutics plc
$104
TISSUETECH, INC.
$100
Allergan, Inc.
$85
Kala Pharmaceuticals, Inc.
$83
Amgen Inc.
$80
Bausch & Lomb, a division of Bausch Health US, LLC
$67
BioTissue Holdings, Inc.
$63
SUN PHARMACEUTICAL INDUSTRIES INC.
$55
ABBVIE INC.
$50
Harrow Eye, LLC
$50
RxSight Inc
$49
Eyevance Pharmaceuticals LLC
$49
Alcon Laboratories Inc
$45
Tarsus Pharmaceuticals, Inc.
$25
Optos, Inc.
$24
BIOTISSUE HOLDINGS, INC.
$24
Beaver-Visitec International, Inc.
$24
ANI Pharmaceuticals, Inc.
$23
Shire North American Group Inc
$22
Sight Sciences, Inc.
$21
Thea Pharma Inc.
$21
Omeros Corporation
$13
Top 3 companies account for 37.6% of all-time payments
Associated products mentioned in payments ›
ACTHAR · ALPHAGAN P · AcrySof · AcrySof IQ VIVITY · AcrySof IQ VIVITY IOL · BROMSITE · BromSite (bromfenac ophthalmic solution) 0.075% · CATALYS SYSTEM · CEQUA · COMBIGAN · Cequa · Clareon · DURYSTA · EYSUVIS · Flarex · INVELTYS · ISTENT INJECT W · ISTENT TRABECULAR MICRO-BYPASS STENT SYSTEM · IYUZEH · LOTEMAX GEL · LUMIGAN · MIEBO · OCT OPHTHALMOSCOPE · OMNI(R) SURGICAL SYSTEM (US) · ORA · OXERVATE · Omidria · Oxervate · PROKERA · PROLENSA · PURIFIED CORTROPHIN GEL · PanOptix · Photrexa · Prokera · RESTASIS · RESTASIS MULTIDOSE · RXSIGHT CONTACT LENS · RYZUMVI · Rhopressa · Rocklatan · Simbrinza · TECNIS IOL · TEPEZZA · TRAVATAN Z · TYRVAYA · Tecnis IOL · VEVYE · VYZULTA · XDEMVY · XIIDRA · rhopressa · rocklatan
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →

Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.

Looking for an ophthalmology specialist in Walnut Creek?
Compare ophthalmologists in the Walnut Creek area by procedure volume, costs, and industry payment transparency.
Browse ophthalmologists nearby

Geographic Context

Ophthalmologists within 10 mi
299
Per 100K population
25.7
County median income
$125,727
Nearest hospital
JOHN MUIR MEDICAL CENTER - WALNUT CREEK CAMPUS
0.0 mi

Data Sources

Provider Registry NPPES Weekly updates
Medicare Enrollment PECOS Monthly updates
Practice Data Medicare Util. Annual (CY lag)
Industry Payments Open Payments CY 2024
Disciplinary History — Not public N/A

This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →

Summary

Dr. Lim is a clinical cardiology specialist, with moderate Medicare volume, with low-engagement industry engagement, with 17 years of NPI registration.

This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →

Frequently Asked Questions

Is Dr. Lim experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Lim performed 866 office visit, established patient (30-39 min) services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Lim receive payments from pharmaceutical companies?
Yes. Dr. Lim received a total of $4,259 from 35 companies across 150 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Lim's costs compare to other ophthalmologists in Walnut Creek?
Dr. Lim's average Medicare payment per service is $124. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Lim) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
About this page

All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.

This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Payments from industry are legal and do not indicate wrongdoing. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →