May Chan, OD
- Medicare patients, 2024
- 31
- Part D claims, 2024
- 18
- Industry payments
- $625
- Affiliated sites
- 2
- Medical groups
- 2
- Practice address
- 3900 Long Beach Blvd, Long Beach, CA 90807
- Practice phone
- Call (562) 988-8668
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Eye Treatment Center, an Incorporated Medical Group, Inc
Long Beach, California
Find May Chan's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
May Chan is an optometrist in Long Beach, California
May Chan practices at Eye Treatment Center, an Incorporated Medical Group, Inc in Long Beach, California.
May Chan's NPI, 1891179545, was assigned on July 13, 2015. May Chan holds California license 15355TLG.
- NPI
- 1891179545NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7719291988
- NPI enumeration date
- July 13, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (562) 988-8668
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
May Chan practices at Eye Treatment Center, an Incorporated Medical Group, Inc in Long Beach, California
May Chan's primary practice is Eye Treatment Center, an Incorporated Medical Group, Inc, at 3900 Long Beach Blvd, Long Beach, CA 90807 in Los Angeles County. The practice phone is (562) 988-8668.
- Eye Treatment Center, an Incorporated Medical Group, Inc3900 Long Beach Blvd, Long Beach, CA 90807 · Los Angeles CountyPhone(562) 988-8668
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
May Chan is affiliated with 3 sites of care and 2 medical groups
May Chan's primary practice is Eye Treatment Center, an Incorporated Medical Group, Inc in Long Beach, California. The medical group on file is Clinicas del Camino Real, Inc. Dmand AI also links May Chan to 1 more community health center, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at May Chan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where May Chan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Eye Treatment Center, an Incorporated Medical Group, Inc | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
May Chan is one of 7,206 optometrists in California
Optometrist is May Chan's primary specialty in the NPI Registry, under taxonomy code 152W00000X. May Chan is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near May Chan
Counts of optometrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
May Chan treated 31 Medicare patients in 2024, average age 75
CMS counts 31 Medicare patients who saw May Chan in 2024. The largest group is 65 to 74, with 15 patients. 75% of them have high cholesterol, and 68% have high blood pressure. Their average risk score is 1.31, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts May Chan's median patient age at 74, with 59% women.
May Chan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
May Chan's Medicare patients by sex, 2024
- Women2065%
- Men1135%
Chronic conditions among May Chan's Medicare patients, 2024
- High cholesterol75%
- High blood pressure68%
- Arthritis52%
- Ischemic heart disease39%
- Mood disorders39%
- Depression35%
- Diabetes35%
Share of Medicare patients with each condition. A patient can have several.
May Chan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women59%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
May Chan wrote 18 Medicare Part D claims in 2024
In 2024, May Chan wrote 18 Medicare Part D claims for 13 patients.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How May Chan takes part in Medicare
May Chan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
May Chan received $625 in industry payments in 2025
CMS Open Payments shows 23 general payments to May Chan from 10 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $246.
Companies that paid May Chan the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for May Chan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about May Chan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is May Chan's NPI number?
May Chan's NPI number is 1891179545. It was assigned on July 13, 2015, and it is active in the NPI Registry.
What does May Chan specialize in?
May Chan is an optometrist in Long Beach, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does May Chan practice?
May Chan practices at 3900 Long Beach Blvd, Long Beach, CA 90807. May Chan's primary practice is Eye Treatment Center, an Incorporated Medical Group, Inc in Long Beach, California. Dmand AI also links May Chan to 1 community health center, 1 group practice or clinic and 1 medical group.
What is May Chan's office phone number?
The practice phone on file for May Chan is (562) 988-8668.
What is May Chan's medical license number?
May Chan holds California license 15355TLG.
What medical group is May Chan part of?
May Chan is linked to Clinicas del Camino Real, Inc. Dmand AI links May Chan to 1 more medical group.
Does May Chan accept Medicare?
Yes. CMS lists May Chan as accepting Medicare assignment.
How many Medicare patients does May Chan see?
CMS counts 31 Medicare patients who saw May Chan in 2024, with an average age of 75.
Has May Chan received payments from drug or device companies?
CMS Open Payments shows $625 in general payments to May Chan from 10 companies from 2025 to 2025. The largest total came from Alcon Laboratories Inc.
How long has May Chan been practicing?
May Chan graduated from medical school in 2015, 11 years ago.
Selling to optometrist practices?
See optometrists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card