Medicare Enrolled

Dr. Ramin Monshizadeh, M.D.

Retina Specialist (Ophthalmology) Physician · Rancho Cucamonga, CA
Practice pattern: Clinical Cardiology — Primarily office-based clinical cardiology
Low-engagement
8577 HAVEN AVE, Rancho Cucamonga, CA 91730
9099445353
In practice since 2005 (20 years)
NPI: 1578566030 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. Monshizadeh 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 →
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What this data tells you about Dr. Monshizadeh

Dr. Ramin Monshizadeh is a retina specialist physician in Rancho Cucamonga, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Monshizadeh performed 4,753 Medicare services across 2,539 unique beneficiaries.

Between the years covered by Open Payments, Dr. Monshizadeh received a total of $818 from 8 pharmaceutical and/or device companies across 11 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in retina specialist (ophthalmology) physician. 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. Monshizadeh 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.

✓ 20 years in practice ▲ 4,753 Medicare services $818 industry payments

Medicare Practice Summary

Medicare Utilization ↗
4,753
Medicare services
Bottom 48% in CA for retina specialist (ophthalmology) physician
2,539
Unique beneficiaries
$65
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~238 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
Retinal imaging (OCT scan)
This procedure involves imaging the retina to visualize its structure. It is used to examine the back of the eye.
1,212 $31 $145
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.
1,168 $95 $200
Extended eye exam with retinal drawing
A detailed examination of the back of the eye that includes creating a drawing of the retina.
794 $19 $50
Eye injection for retinal disease
A procedure involving the administration of medication directly into the eye.
359 $90 $400
Bevacizumab injection, 10 mg
Administration of a 10 mg dose of bevacizumab medication via injection.
299 $57 $95
Retinal angiography with dye injection
This procedure uses a special camera to examine the blood vessels in the retina after a dye has been injected into the body.
264 $115 $353
Fluorescein angiography of retina
A special camera captures images of the blood vessels in the retina and the area between the white part of the eye and the retina after a dye is injected.
163 $219 $600
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.
130 $120 $512
Steroid injection (triamcinolone)
A 10 mg injection of triamcinolone acetonide, a corticosteroid medication. This code specifies the drug and dosage administered.
117 $1 $35
Retinal photography (fundus photo)
This procedure involves taking photographs of the retina, the light-sensitive tissue at the back of the eye. It is used to document the condition of the eye's interior structures.
57 $28 $254
Optic nerve imaging (OCT scan)
Imaging of the optic nerve.
36 $28 $142
Comprehensive eye exam, established patient
A comprehensive examination of the visual system performed for a patient who has previously been seen by the provider.
33 $92 $398
Injection into eye membrane
A procedure involving the injection of a drug or substance into the membrane that covers the eyeball.
30 $41 $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.
23 $71 $100
Ultrasound of eye tissue and structures
A diagnostic imaging test that uses sound waves to create pictures of the eye's internal tissues and structures.
20 $40 $300
Office visit, established patient, complex (40-54 min)
An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter.
20 $135 $200
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.
14 $50 $207
New patient office visit, complex (60-74 min) 14 $184 $250
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.

Industry Payment Transparency

Open Payments through 2023 ↗
$818
Total received (2019-2023)
Avg $164/year across 5 years
Bottom 23% in CA for retina specialist (ophthalmology) physician
8
Companies
11
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
$818 (100.0%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2023
$350
2022
$45
2021
$98
2020
$100
2019
$226

Payments by company (2023)

Consulting
Speaking
Meals & Travel
Research
Dutch Ophthalmic, USA
$172
Horizon Therapeutics plc
$150
Genentech USA, Inc.
$28
Top 3 companies account for 100.0% of 2023 payments
All-time payments by company (2019-2023) ›
Ocular Therapeutix, Inc.
$201
Optos, Inc.
$176
Dutch Ophthalmic, USA
$172
Horizon Therapeutics plc
$150
ABBVIE INC.
$45
Genentech USA, Inc.
$28
OPTOS, INC.
$25
Allergan, Inc.
$22
Top 3 companies account for 67.0% of all-time payments
Associated products mentioned in payments ›
DEXTENZA · EVA · OZURDEX · P200DTx · PANORAMIC OPHTHALMOSCOPE · ReSure Sealant · TEPEZZA · Vabysmo · combined machine
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 a retina specialist physician in Rancho Cucamonga?
Compare retina specialist physicians in the Rancho Cucamonga area by procedure volume, costs, and industry payment transparency.
Browse retina specialist physicians nearby

Geographic Context

Retina specialist physicians within 10 mi
10
Per 100K population
0.5
County median income
$82,184
Nearest hospital
SAN ANTONIO REGIONAL HOSPITAL
4.8 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 2023
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. Monshizadeh is a clinical cardiology specialist, with moderate Medicare volume, with low-engagement industry engagement, with 20 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. Monshizadeh experienced with retinal imaging (oct scan)?
Based on Medicare claims data, Dr. Monshizadeh performed 1,212 retinal imaging (oct scan) 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. Monshizadeh receive payments from pharmaceutical companies?
Yes. Dr. Monshizadeh received a total of $818 from 8 companies across 11 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. Monshizadeh's costs compare to other retina specialist physicians in Rancho Cucamonga?
Dr. Monshizadeh's average Medicare payment per service is $65. 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. Monshizadeh) 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 →