Deborah Duan
Optometrist • Pasadena, CA
2619 E Colorado Blvd Ste 150
Pasadena, CA 911073747
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 May 6, 2019; this date does not establish years in practice.
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Published CMS data list 111 Medicare Part D prescriptions, including refills, in 2023.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023. Published rows only; this is not a quality measure.
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Published Part D records, 2023:
- Latanoprost — 23 prescription fills, including refills.
- Azelastine Hcl — 19 prescription fills, including refills.
- Restasis (Cyclosporine) — 19 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 6 records in the table · Guide: How to read Medicare Part D prescriber data
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Medicare Part D prescriptions went from 17 in 2019 to 111 in 2023.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2019–2023.
Practice Location & Contact Primary Location
2619 E Colorado Blvd Ste 150
Pasadena, CA 911073747
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 5 distinct additional practice-address records in Glendale, CA; Glendora, CA; Monrovia, CA and 2 more. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
Optometrist: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
188 standardized 30-day fills in 2023
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
$24,716 in 2023
The total cost of these prescriptions in 2023, 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, 2023.
Open Payments general payments, program year 2025
All general payments: $3,268.87 across 25 records.
By nature of payment (3 largest of 4)
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program: $1,800.00 across 2 records.
- Food and Beverage: $1,275.42 across 21 records.
- Entertainment: $188.67 across 1 record.
Reporting-company totals (3 largest of 6)
- Bausch & Lomb Americas Inc.: $2,385.71 across 10 records.
- Alcon Vision LLC: $227.30 across 6 records.
- Optos, Inc.: $188.67 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).
NPI first issued
2019
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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.
Compared with the same specialty in Pasadena and California
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Deborah Duan are from 2023.
90 active clinicians are listed under Optometrist with a practice address in Pasadena, CA (8,312 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Pasadena
0% of these 90 clinicians have the CMS telehealth indicator.
44.4% of these 90 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part D prescriptions
Medicare Part D prescriptions went from 17 in 2019 to 111 in 2023.
- 2019: 17
- 2020: 429
- 2021: 1,890
- 2022: 1,404
- 2023: 111
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30-day fills
30-day fills increased 434% from 35 in 2019 to 188 in 2023.
- 2019: 35
- 2020: 699
- 2021: 3,111
- 2022: 2,325
- 2023: 188
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Part D drug cost
Part D drug cost went from $414 in 2019 to $24,716 in 2023.
- 2019: $414
- 2020: $74,268
- 2021: $486,285
- 2022: $397,236
- 2023: $24,716
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Industry payments (Open Payments)
Industry payments (Open Payments) increased 93% from $1,695.73 in 2021 to $3,268.87 in 2025.
- 2021: $1,695.73
- 2022: $1,936.87
- 2023: $3,323.70
- 2024: $1,109.89
- 2025: $3,268.87
Sources: CMS Medicare Part D Prescribers (2023), 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): 25 records totaling $3,268.87.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Bausch & Lomb Americas Inc. |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
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XIIDRA | General | $900.00 |
| Bausch & Lomb Americas Inc. |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
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— | General | $900.00 |
| Optos, Inc. |
Entertainment
In-kind items and services
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NFC-700 | General | $188.67 |
| Bausch & Lomb Americas Inc. |
Food and Beverage
In-kind items and services
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INFUSE | General | $146.71 |
| Alcon Vision LLC |
Food and Beverage
In-kind items and services
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TRYPTYR | General | $125.00 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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LUMIGAN | General | $125.00 |
| Bausch & Lomb Americas Inc. |
Food and Beverage
In-kind items and services
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VYZULTA | General | $124.99 |
| Bausch & Lomb Americas Inc. |
Food and Beverage
In-kind items and services
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VYZULTA | General | $124.92 |
| Bausch & Lomb Americas Inc. |
Food and Beverage
In-kind items and services
|
MIEBO | General | $124.83 |
| Tarsus Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
XDEMVY | General | $124.81 |
| CooperVision Inc. |
Food and Beverage
In-kind items and services
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MyDay Contact Lens | General | $97.35 |
| Alcon Vision LLC |
Food and Beverage
In-kind items and services
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DAILIES TOTAL1 | General | $31.97 |
| Tarsus Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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XDEMVY | General | $30.50 |
| Alcon Vision LLC |
Food and Beverage
In-kind items and services
|
DAILIES TOTAL1 | General | $30.16 |
| CooperVision Inc. |
Food and Beverage
In-kind items and services
|
MiSight Contact Lens | General | $25.65 |
| Bausch & Lomb Americas Inc. |
Food and Beverage
In-kind items and services
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INFUSE | General | $23.37 |
| Tarsus Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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XDEMVY | General | $23.28 |
| CooperVision Inc. |
Food and Beverage
In-kind items and services
|
MyDay Contact Lens | General | $23.20 |
| Bausch & Lomb Americas Inc. |
Food and Beverage
In-kind items and services
|
MIEBO | General | $21.14 |
| CooperVision Inc. |
Food and Beverage
In-kind items and services
|
MyDay Contact Lens | General | $17.40 |
| Alcon Vision LLC |
Food and Beverage
In-kind items and services
|
DAILIES TOTAL1 | General | $16.45 |
| Alcon Vision LLC |
Food and Beverage
In-kind items and services
|
Precision7 | General | $15.64 |
| Bausch & Lomb Americas Inc. |
Food and Beverage
In-kind items and services
|
INFUSE | General | $14.97 |
| Alcon Vision LLC |
Food and Beverage
In-kind items and services
|
DAILIES TOTAL1 | General | $8.08 |
| Bausch & Lomb Americas Inc. |
Education
In-kind items and services
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MIEBO | General | $4.78 |
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 2023.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Latanoprost | Latanoprost | 23 | 1,385 | $636.93 | 16 |
| Azelastine Hcl | Azelastine Hcl | 19 | 732 | $534.73 | — |
| Restasis | Cyclosporine | 19 | 795 | $17,129.94 | — |
| Timolol Maleate | Timolol Maleate | 19 | 1,122 | $205.54 | — |
| Lumigan | Bimatoprost | 16 | 635 | $5,745.42 | — |
| Dorzolamide-Timolol | Dorzolamide Hcl/Timolol Maleat | 15 | 820 | $463.84 | — |
Source: CMS Part D by Provider and Drug, 2023; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 152W00000X
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
Secondary Practice Locations
207 S Santa Anita St Ste 310
San Gabriel, CA 917761154
Phone: 6262001277
855 W Foothill Blvd
Monrovia, CA 910161938
Phone: 6263581080
150 S Grand Ave Ste J
Glendora, CA 917414716
Phone: 6263352114
1025 N Brand Blvd Ste 200
Glendale, CA 912023638
Phone: 8185839933
18370 Burbank Blvd Ste 207
Tarzana, CA 913562856
Phone: 8189963400
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Optometrist
Ophthalmology - Retina Specialist
Doctor of Medicine (M.D.)
Ophthalmology
Doctor of Medicine (M.D.)
Optometrist
Doctor of Optometry
Optometrist
Doctor of Optometry
Ophthalmology
Doctor of Osteopathic Medicine (D.O.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Optometrist (license number reported to NPPES: CA 34232TLG)
NPI status registered as active in NPPES database
Registered at 2619 E COLORADO BLVD STE 150, PASADENA, CA 911073747 (Tel: 6267934168)
Registered at 463 W CAMINO REAL AVE, ARCADIA, CA 910077302 (Tel: 6262033684)
Recorded as DEBORAH DUAN
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Optometrists in Pasadena
- Dr. Renia Malek, OD
- Dr. Grace Chi, OD
- Dr. Mike Wong, OD
- Dr. Theresa Tran, OD
- Natalee Rackus
- Dr. Agatha Sleboda, OD
Mailing Address
463 W Camino Real Ave
Arcadia, CA 910077302
Phone: 6262033684