Dr. Lam Phung, MD
- Medicare services, 2024
- 489
- Medicare patients, 2024
- 182
- Part D claims, 2024
- 791
- Industry payments
- $1,621
- Affiliated sites
- 1
- Practice address
- 9428 Valley Blvd, Rosemead, CA 91770
- Practice phone
- Call (626) 921-2889
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Rosemead Surgical Services LLC
Rosemead, California
Find Dr. Phung'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. Lam Phung is an ophthalmologist in Rosemead, California
Dr. Phung practices at Rosemead Surgical Services LLC in Rosemead, California.
Dr. Phung's NPI, 1992231682, was assigned on May 2, 2017. Dr. Phung graduated from University of Miami, Lm Miller School of Medicine in 2017. Dr. Phung holds California license A171632.
- NPI
- 1992231682NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1759777808
- NPI enumeration date
- May 2, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (626) 921-2889
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lam Phung practices at Rosemead Surgical Services LLC in Rosemead, California
Dr. Phung's primary practice is Rosemead Surgical Services LLC, at 9428 Valley Blvd, Rosemead, CA 91770 in Los Angeles County. The practice phone is (626) 921-2889.
- Rosemead Surgical Services LLC9428 Valley Blvd, Rosemead, CA 91770 · Los Angeles CountyPhone(626) 921-2889
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Lam Phung is affiliated with 2 sites of care and 1 medical group
Dr. Phung's primary practice is Rosemead Surgical Services LLC in Rosemead, California. Dmand AI also links Dr. Phung to 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 Dr. Lam Phung's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Phung practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rosemead Surgical Services LLC | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lam Phung is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Phung's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Phung is licensed in California.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
Ophthalmologists near Dr. Phung
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. Lam Phung billed Medicare for 489 services in 2024
CMS data shows 489 Medicare services from Dr. Phung across 11 procedure codes in 2024, for 182 Medicare patients. Medicare paid $44,822 for them.
Dr. Phung's Medicare services by type, 2024
- Tests and treatments353
- Office and hospital visits69
- Imaging42
- Surgery25
Where Dr. Phung's Medicare services took place, 2024
- In an office46495%
- In a facility255%
Dr. Phung compared with the California median for ophthalmologists, 2024
- Dr. Phung
- California median
- Medicare services
- 489vs 1,07955% below
- Medicare patients
- 182vs 42157% below
- Part D claims
- 760vs 61823% above
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Dr. Phung's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lam Phung treated 182 Medicare patients in 2024, average age 74
CMS counts 182 Medicare patients who saw Dr. Phung in 2024. The largest group is 65 to 74, with 99 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 79% are also on Medicaid. Their average risk score is 1.45, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Phung's median patient age at 64, with 52% women.
Dr. Phung's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Phung's Medicare patients by sex, 2024
- Women9954%
- Men8346%
Chronic conditions among Dr. Phung's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes49%
- Arthritis40%
- Osteoporosis36%
- Chronic kidney disease34%
- Ischemic heart disease30%
- COPD19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Phung's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lam Phung wrote 791 Medicare Part D claims in 2024
In 2024, Dr. Phung wrote 791 Medicare Part D claims for 216 patients. 60% of them were for generic drugs. CMS names the drug for 760 of them, across 11 drugs with 11 or more claims each, at $78,612 in total drug cost.
Dr. Phung's Part D claims by kind of drug, 2024
- Generic475 claims60%
- Brand-name316 claims40%
Dr. Phung'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
Dr. Lam Phung ranks in the 47th percentile for cataract surgery in Medicare
Dr. Phung accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 23 procedures of cataract surgery by Dr. Phung, more than 47% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Phung ranks in Medicare procedure volume
- Cataract surgery
- 47th percentile23 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Lam Phung received $1,621 in industry payments from 2024 to 2025
CMS Open Payments shows 51 general payments to Dr. Phung from 10 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $416.
General payments to Dr. Phung by program year, 2024 to 2025
Companies that paid Dr. Phung the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lam Phung graduated from University of Miami, Lm Miller School of Medicine
Dr. Phung graduated from University of Miami, Lm Miller School of Medicine in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Lam Phung'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Lam Phung
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. Lam Phung's NPI number?
Dr. Lam Phung's NPI number is 1992231682. It was assigned on May 2, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Lam Phung?
Dr. Lam Phung is an ophthalmologist in Rosemead, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Lam Phung practice?
Dr. Phung practices at 9428 Valley Blvd, Rosemead, CA 91770. Dr. Phung's primary practice is Rosemead Surgical Services LLC in Rosemead, California. Dmand AI also links Dr. Phung to 1 group practice or clinic and 1 medical group.
What is Dr. Lam Phung's office phone number?
The practice phone on file for Dr. Phung is (626) 921-2889.
What is Dr. Lam Phung's medical license number?
Dr. Phung holds California license A171632.
Does Dr. Lam Phung accept Medicare?
Yes. CMS data shows Dr. Phung billed Medicare for 489 services in 2024, and Dr. Phung accepts Medicare assignment.
How many Medicare patients does Dr. Lam Phung see?
CMS counts 182 Medicare patients who saw Dr. Phung in 2024, with an average age of 74.
What services does Dr. Lam Phung bill to Medicare?
In 2024, Dr. Phung's most billed Medicare services were eye exam or test (92004), office visit, established patient (99214) and eye exam or test (92014).
Where did Dr. Lam Phung go to medical school?
Dr. Phung graduated from University of Miami, Lm Miller School of Medicine in 2017.
What drugs does Dr. Lam Phung prescribe most?
In 2024 Medicare Part D data, Dr. Phung's most prescribed drugs by claims were Latanoprost, Prednisolone Acetate and Moxifloxacin.
Has Dr. Lam Phung received payments from drug or device companies?
CMS Open Payments shows $1,621 in general payments to Dr. Phung from 10 companies from 2024 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dr. Lam Phung been practicing?
Dr. Phung graduated from medical school in 2017, 9 years ago.
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