Dr. Jesse Mata De Leon , MD
Ophthalmology • Paramount, CA
16660 Paramount Blvd, Suite 211
Paramount, CA 907235433
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on April 11, 2007; this date does not establish years in practice.
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Published CMS data list 15 Original Medicare Part B services in 2023.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023. Published rows only; this is not a quality measure.
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Published Part B service records, 2023:
- 99213 — Established patient outpatient office visit: 15 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2022 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2023). CPT notice
See the full table · Guide: How to read Medicare Part B data
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Published CMS data list 49 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Latanoprost — 22 prescription fills, including refills.
- Brimonidine Tartrate — 16 prescription fills, including refills.
- Timolol Maleate (Timolol Maleate/Pf) — 11 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table · Guide: How to read Medicare Part D prescriber data
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Fewer Part D prescriptions than 90% of clinicians listed under Ophthalmology in California (2024, 1,966 clinicians with data). Median for this group: 1,025. Middle half: 297 to 2,233.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 23 in 2018 to 15 in 2023.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2018–2023.
Practice Location & Contact Primary Location
16660 Paramount Blvd
Suite 211
Paramount, CA 907235433
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: J And L De Leon Medical Corporation. 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
University College Of Medicine
1969
What Public CMS Data Show
Ophthalmology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $1,388 in 2023
The total amount Medicare approved for these services in 2023. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023.
Paid by Medicare
About $733 in 2023
The part of the Medicare-allowed amount that Medicare itself paid in 2023, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023.
30-day fills
81 standardized 30-day fills in 2024
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
$7,187 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
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, 2024.
Open Payments general payments, program year 2025
All general payments: $71.20 across 3 records.
By nature of payment
- Food and Beverage: $71.20 across 3 records.
Reporting-company totals
- Sanofi Pasteur Inc.: $49.56 across 2 records.
- Merck Sharp & Dohme LLC: $21.64 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.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
57 years (graduated 1969)
CMS Doctors and Clinicians data list 1969 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished 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
2007
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.
May accept Medicare assignment
CMS data show this clinician may accept Medicare assignment. Clinicians who do not always accept assignment can decide case by case.
Ask the office before your visit. If a clinician does not accept assignment for a service, they can charge up to 15% more than the Medicare-approved amount, and you may be asked to pay the full amount at the visit.
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?”
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.
Enrolled in Medicare (PECOS)
Dr. De Leon 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.
Can order Medicare-covered services
CMS lists Dr. De Leon 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.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
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.
Compared with the same specialty in Paramount and California
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Fewer Part D prescriptions than 90% of clinicians listed under Ophthalmology in California (2024, 1,966 clinicians with data). Median for this group: 1,025. Middle half: 297 to 2,233.
Too few clinicians listed under Ophthalmology in Paramount have Medicare Part D data for 2024 to compare.
Part D drug cost
A lower Part D drug cost than 80% of clinicians listed under Ophthalmology in California (2024, 1,966 clinicians with data). Median for this group: $79,352. Middle half: $13,075 to $224,408.
Too few clinicians listed under Ophthalmology in Paramount have Medicare Part D data for 2024 to compare.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. De Leon are from 2023.
1 active clinicians are listed under Ophthalmology with a practice address in Paramount, CA (2,902 in California).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 35% from 23 in 2018 to 15 in 2023.
- 2018: 23
- 2019: 20
- 2020: 19
- 2021: 15
- 2023: 15
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Medicare-allowed amount
Medicare-allowed amount decreased 25% from $1,854 in 2018 to $1,388 in 2023.
- 2018: $1,854
- 2019: $1,636
- 2020: $1,575
- 2021: $1,248
- 2023: $1,388
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Paid by Medicare
Paid by Medicare decreased 28% from $1,016 in 2018 to $733 in 2023.
- 2018: $1,016
- 2019: $1,039
- 2020: $1,189
- 2021: $866
- 2023: $733
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 68% from 152 in 2020 to 49 in 2024.
- 2020: 152
- 2021: 175
- 2022: 67
- 2023: 38
- 2024: 49
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30-day fills
30-day fills decreased 59% from 198 in 2020 to 81 in 2024.
- 2020: 198
- 2021: 267
- 2022: 112
- 2023: 56
- 2024: 81
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Part D drug cost
Part D drug cost decreased 65% from $20,292 in 2020 to $7,187 in 2024.
- 2020: $20,292
- 2021: $26,783
- 2022: $8,477
- 2023: $557
- 2024: $7,187
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $75.81 in 2021 to $71.20 in 2025.
- 2021: $75.81
- 2022: $47.90
- 2023: $155.59
- 2024: $129.14
- 2025: $71.20
Sources: CMS Medicare Physician & Other Practitioners (2023), CMS Medicare Part D Prescribers (2024), 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
Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $71.20.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Sanofi Pasteur Inc. |
Food and Beverage
In-kind items and services
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BEYFORTUS | General | $26.18 |
| Sanofi Pasteur Inc. |
Food and Beverage
In-kind items and services
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BEYFORTUS | General | $23.38 |
| Merck Sharp & Dohme LLC |
Food and Beverage
In-kind items and services
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M-M-R II | General | $21.64 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2022 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2023; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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15 | 13 | $93.51 | $92.51 |
Source: CMS Part B by Provider and Service, 2023; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Latanoprost | Latanoprost | 22 | 1,190 | $438.97 | — |
| Brimonidine Tartrate | Brimonidine Tartrate | 16 | 828 | $4,105.30 | — |
| Timolol Maleate | Timolol Maleate/Pf | 11 | 330 | $2,642.64 | — |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207W00000X
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.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - OPHTHALMOLOGY
I20101206000237
CA
4486841301
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
J And L De Leon Medical Corporation
16660 Paramount Blvd, Paramount, CA 907235469
Phone: 5626335438
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Pediatrics
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated April 11, 2007.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Mailing Address
16660 Paramount Blvd, Suite 211
Paramount, CA 907235433
Phone: 5626335438