Dr. John Yu Cheng, MD
- Part D claims, 2024
- 207
- Hospital affiliations
- 3
- Industry payments
- $168
- Medical groups
- 2
- State license
- 1
- Practice address
- 1000 W Carson St, Torrance, CA 90509
- Practice phone
- Call (310) 222-2345
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Cheng'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.
Dr. John Yu Cheng is an ophthalmologist in Torrance, California
Dr. Cheng practices at Harbor-UCLA Medical Center in Torrance, California, part of County of Los Angeles.
Dr. Cheng's NPI, 1205586773, was assigned on March 26, 2022. Dr. Cheng holds California license A187287.
- NPI
- 1205586773NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0042653677
- NPI enumeration date
- March 26, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (310) 222-2345
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Yu Cheng practices at Harbor-UCLA Medical Center in Torrance, California
Dr. Cheng's primary practice is Harbor-UCLA Medical Center, at 1000 W Carson St, Torrance, CA 90509 in Los Angeles County. The practice phone is (310) 222-2345.
- Harbor-UCLA Medical Center1000 W Carson St, Torrance, CA 90509 · Los Angeles CountyPhone(310) 222-2345
Source: Dmand AI Affiliation Data
Dr. John Yu Cheng is affiliated with 5 sites of care and 2 medical groups
Dr. Cheng's primary practice is Harbor-UCLA Medical Center in Torrance, California, part of County of Los Angeles. Dr. Cheng is also affiliated with Ronald Reagan UCLA Medical Center. Dmand AI also links Dr. Cheng to 1 more hospital, 2 group practices and clinics and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Yu Cheng's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cheng practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Harbor-UCLA Medical Center | Available with a free account |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Yu Cheng is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Cheng's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Cheng is licensed in California.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
Ophthalmologists near Dr. Cheng
Counts of ophthalmologists 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
Dr. John Yu Cheng's patients have a median age of 60
Across all payers, Dmand AI patient panel data puts Dr. Cheng's median patient age at 60, with 48% women.
Dr. Cheng's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women48%
- Men52%
Source: Dmand AI Patient Panel Data
Dr. John Yu Cheng wrote 207 Medicare Part D claims in 2024
In 2024, Dr. Cheng wrote 207 Medicare Part D claims for 68 patients. 60% of them were for generic drugs. CMS names the drug for 179 of them, across 5 drugs with 11 or more claims each, at $7,359 in total drug cost.
Dr. Cheng's Part D claims by kind of drug, 2024
- Generic124 claims60%
- Brand-name83 claims40%
Dr. Cheng's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. John Yu Cheng takes part in Medicare
Dr. Cheng 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)
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Dr. John Yu Cheng received $168 in industry payments in 2024
CMS Open Payments shows 2 general payments to Dr. Cheng from 1 drug or device company in 2024. Food and beverage make up the largest share, 91% of the total. Carl Zeiss Meditec USA, Inc. paid the most, $168.
General payments to Dr. Cheng by kind, 2024 to 2024
- Food and beverage$15391%
- Travel and lodging$149%
Companies that paid Dr. Cheng the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. John Yu Cheng'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)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 Dr. John Yu Cheng
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. John Yu Cheng's NPI number?
Dr. John Yu Cheng's NPI number is 1205586773. It was assigned on March 26, 2022, and it is active in the NPI Registry.
What kind of doctor is Dr. John Yu Cheng?
Dr. John Yu Cheng is an ophthalmologist in Torrance, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. John Yu Cheng practice?
Dr. Cheng practices at 1000 W Carson St, Torrance, CA 90509. Dr. Cheng's primary practice is Harbor-UCLA Medical Center in Torrance, California, part of County of Los Angeles. Dmand AI also links Dr. Cheng to 1 hospital, 2 group practices and clinics and 2 medical groups.
What is Dr. John Yu Cheng's office phone number?
The practice phone on file for Dr. Cheng is (310) 222-2345.
What is Dr. John Yu Cheng's medical license number?
Dr. Cheng holds California license A187287.
Which hospitals is Dr. John Yu Cheng affiliated with?
Dr. Cheng practices at Harbor-UCLA Medical Center in Torrance, California. Dr. Cheng is also affiliated with Ronald Reagan UCLA Medical Center. Dmand AI links Dr. Cheng to 1 more hospital.
Does Dr. John Yu Cheng accept Medicare?
Yes. CMS lists Dr. Cheng as accepting Medicare assignment.
What drugs does Dr. John Yu Cheng prescribe most?
In 2024 Medicare Part D data, Dr. Cheng's most prescribed drugs by claims were Latanoprost, Brimonidine Tartrate and Dorzolamide-Timolol.
Has Dr. John Yu Cheng received payments from drug or device companies?
CMS Open Payments shows $168 in general payments to Dr. Cheng from 1 company from 2024 to 2024. The largest total came from Carl Zeiss Meditec USA, Inc.
How long has Dr. John Yu Cheng been practicing?
Dr. Cheng's NPI was assigned in 2022.
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