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Dr. Eric Randall Chen , MD

Ophthalmology β€’ Phoenix, AZ

Active NPI 1184245359 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

18325 N Allied Way Ste 100
Phoenix, AZ 850543106

Call 6024674966 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

18325 N Allied Way Ste 100

Phoenix, AZ 850543106

Telephone 6024674966
Fax 4804195401
Organization at the Same NPPES Address or Phone
Millennium Vision Inc Facility NPI 1184730251

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 2 distinct group names: Baylor College Of Medicine; Millennium Vision Inc. 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

Graduation Year

2020

30-day fills

42 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

$802 in 2023

The total cost of these prescriptions in 2023, 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, 2023.

Open Payments general payments, program year 2025

All general payments: $844.05 across 12 records.

By nature of payment

  • Food and Beverage: $778.13 across 11 records.
  • Travel and Lodging: $65.92 across 1 record.

Reporting-company totals (3 largest of 5)

  • Alcon Vision LLC: $398.48 across 6 records.
  • Glaukos Corporation: $260.09 across 3 records.
  • Tarsus Pharmaceuticals, Inc.: $150.00 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

6 years (graduated 2020)

CMS Doctors and Clinicians data list 2020 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

2020

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, β€œDoes 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)

Dr. Chen 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 Dr. Chen 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 Phoenix and Arizona

Billing and prescribing volume is not a quality rating.

Medicare Part D

Comparisons use 2024 data. The latest CMS data for Dr. Chen are from 2023.

92 active clinicians are listed under Ophthalmology with a practice address in Phoenix, AZ (353 in Arizona).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Phoenix

0% of these 92 clinicians have the CMS telehealth indicator.

62% of these 92 clinicians are listed by CMS as accepting Medicare assignment.

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 Β· 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 Β· Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): 12 records totaling $844.05.

Manufacturer Payment Nature Product Type Amount ($)
Tarsus Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
β€” General $150.00
Glaukos Corporation
Food and Beverage
Cash or cash equivalent
iDoseTR General $138.05
Alcon Vision LLC
Food and Beverage
In-kind items and services
Clareon General $126.80
Alcon Vision LLC
Food and Beverage
In-kind items and services
UNITY General $92.53
Alcon Vision LLC
Food and Beverage
In-kind items and services
β€” General $83.43
Alcon Vision LLC
Travel and Lodging
In-kind items and services
β€” General $65.92
Glaukos Corporation
Food and Beverage
Cash or cash equivalent
iDoseTR General $62.70
Glaukos Corporation
Food and Beverage
Cash or cash equivalent
iDoseTR General $59.34
Alcon Vision LLC
Food and Beverage
In-kind items and services
TRYPTYR General $21.09
Dompe US, Inc.
Food and Beverage
In-kind items and services
OXERVATE General $17.99
Bausch & Lomb Americas Inc.
Food and Beverage
In-kind items and services
ScoutPro Osmolarity System General $17.49
Alcon Vision LLC
Food and Beverage
In-kind items and services
TRYPTYR General $8.71

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.

CMS Part D Β· Data Year 2023
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Latanoprost Latanoprost 17 617 $284.01 β€”
Prednisolone Acetate Prednisolone Acetate 14 535 $517.76 β€”

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

Self-certified to NPPES: 2025-09-25
Ophthalmology Primary Specialty

NUCC Taxonomy Code: 207W00000X

License # reported to NPPES AZ 78039

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.

Ophthalmology

NUCC Taxonomy Code: 207W00000X

License # reported to NPPES TX U9228

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.

Ophthalmology

NUCC Taxonomy Code: 207W00000X

License # reported to NPPES NY 326592

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.

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: Arizona Medical Board.
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

I20251002002370

Enrollment State Jurisdiction

AZ

PECOS Control ID

2567886138

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

Baylor College Of Medicine

7200 Cambridge St, Houston, TX 770304202

Baylor College Of Medicine

1977 Butler Boulevard, Houston, TX 770304101

Baylor College Of Medicine

1977 Butler Blvd, Houston, TX 770304101

Baylor College Of Medicine

1977 Butler Boulevard 6th Floor, Houston, TX 770304101

Phone: 7137986131

Millennium Vision Inc

18325 N Allied Way, Phoenix, AZ 850543106

Phone: 6029533339

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

13 listed
NPI 1306024104

Doctor of Medicine (M.D.)

Dr. John Cason , MD

Ophthalmology

NPI 1255494001

Doctor of Medicine (M.D.)

NPI 1689057085

Doctor of Optometry

NPI 1457612830

Doctor of Osteopathic Medicine (D.O.)

NPI 1386639839

Doctor of Optometry

NPI 1649407883

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

13 Historical Events
πŸ“
Updated Practice Location September 25, 2025

Registered at 18325 N ALLIED WAY STE 100, PHOENIX, AZ 850543106 (Tel: 6024674966)

πŸ“
Updated Business Mailing Address September 25, 2025

Registered at 18325 N ALLIED WAY STE 100, PHOENIX, AZ 850543106 (Tel: 6024674966)

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) September 25, 2025

Ophthalmology (license number reported to NPPES: TX U9228)

πŸ“
Updated Practice Location May 13, 2024

Registered at 1504 TAUB LOOP FL 18, HOUSTON, TX 770301608 (Tel: 7138738890)

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) May 13, 2024

Ophthalmology (license number reported to NPPES: NY 326592)

πŸ“
Updated Practice Location June 23, 2021

Registered at 601 ELMWOOD AVE, ROCHESTER, NY 146420001 (Tel: 5852733937)

πŸ“
Updated Business Mailing Address June 23, 2021

Registered at 601 ELMWOOD AVE BOX 659, ROCHESTER, NY 146420001

βœ…
NPI Profile Active April 29, 2020

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) April 29, 2020

Registered at 601 ELMWOOD AVE, AC-5 GENERAL MEDICINE CLINIC 696, ROCHESTER, NY 14642 (Tel: 5852755681)

πŸ“
Business Mailing Address (Initial Record) April 29, 2020

Registered at 3600 PARK EAST DR APT 531, BEACHWOOD, OH 441224357

πŸ‘€
Provider Name / Credentials (Initial Record) April 29, 2020

Recorded as ERIC CHEN, MD

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) April 29, 2020

Student in an Organized Health Care Education/Training Program

🟒
Initial NPI Registration & Enumeration April 29, 2020

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1184245359
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 29, 2020
Last Update: September 25, 2025
Sole Proprietor: No

Other Ophthalmology Specialists in Phoenix

All Ophthalmology Specialists in Phoenix

Mailing Address

18325 N Allied Way Ste 100

Phoenix, AZ 850543106

Phone: 6024674966

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.