Kien-An Duong, MD
Internal Medicine Physician · Laguna Woods, California
NPI: 1033175658
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Too few public reviews
$209
First visit · CPT 99204
$225
Follow-up · CPT 99215
Laguna Woods
California · 5 visit types priced
What You’d Pay
The negotiated rate is the whole bill for a visit with Dr. Duong; there is no separate list price on top. How much of it lands on you depends on which of three situations your plan puts you in.
Visit
Deductible not met
Met, 20% coinsurance
Copay plan
First visit
New patient visit, 45–59 min · CPT: 99204
Follow-up
Follow-up visit, 40–54 min · CPT: 99215
Coinsurance is shown at 20%, the most common in-network share; yours may be 10–40%. Primary care copays typically run $20–$50. Out-of-network or non-UnitedHealthcare plans will differ.
Not every visit needs an office. The Momentary app is AI primary care with real doctors, $19.99 a month for unlimited visits, prescriptions, lab orders and referrals; less than one $225 follow-up here.
Get the Momentary appNegotiated Rates
A new patient visit (45–59 min, CPT 99204) with Dr. Duong has a UnitedHealthcare negotiated rate of $209, 20% below the California median of $262. These are the in-network prices UnitedHealthcare published for Dr. Duong’s own NPI in February 2026; what you owe depends on your plan.
Office visits
Problem-focused appointments, priced by length and complexity. Most routine follow-ups bill as 99213 or 99214.
New patient$118–$284
15–29 min99202
within 5% of California median ($118)
$118
30–44 min99203
13% below California median ($176)
$154
plans $129–$179
45–59 min99204
20% below California median ($262)
$209
60–74 min99205
18% below California median ($346)
$284
Follow-up (established patient)$225
40–54 min99215
21% below California median ($284)
$225
In-office add-ons and telehealth
Billed on top of a visit, plus phone or portal visits.
Billed on top of a visit$6–$28
Vaccine administration, first vaccine90471
$28
Electrocardiogram (ECG) with interpretation93000
$23
Therapeutic injection (intramuscular or subcutaneous)96372
$23
Urinalysis, dipstick81002
$6
Hospital and emergency rates
Contract codes that do not apply to an office visit, including hospital, emergency and consult work this doctor may never bill. Shown for completeness.
Hospital, emergency and consult codes$109–$331
Initial hospital care, moderate complexity99222
$207
Initial hospital care, high complexity99223
$303
Subsequent hospital care, moderate complexity99232
$109
Subsequent hospital care, high complexity99233
$157
Hospital discharge, 30 minutes or less99238
$111
Hospital discharge, more than 30 minutes99239
$163
Emergency department visit, low complexity99283
$109
Emergency department visit, moderate complexity99284
$184
Emergency department visit, high complexity99285
$267
Critical care, first 30–74 minutes99291
$331
Rates are the median across UnitedHealthcare’s plan files for this doctor and code; where plans pay different amounts the range is shown underneath. The comparison is against the median among doctors listed on this site in the same city (when at least three report the code), otherwise statewide. Position counts every listed doctor in the city, lowest rate first.
Patient Reviews
We found only 1 public review for Dr. Duong, too few to summarise fairly. We show ratings once a doctor has at least 5.
California Market
California internal medicine physicians with a published rate for new patient visit (45–59 min), cheapest first, with their public rating alongside. The cheapest and most expensive are always included, plus those priced closest to Dr. Duong.
Doctor
New patient visit, 45–59 min
Follow-up
Rating
Dr. Kien-An Duong, MD this page
$209
New patient visit, 45–59 min
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follow-up
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About
Specialty
Internal Medicine Physician
Credentials
MD
NPI Number
1033175658CA Medical License
#A94108In Federal Registry Since
2006
Gender
Male
Practice Type
Group Practice
NPIs were first issued in 2005, so the registry date is a floor on years in practice, not a measure of it. License status is verifiable with the Medical Board of California.
Additional Specialties
Location
Address
24268 EL TORO ROAD
Laguna Woods, CA 92637
Phone
(657) 241-8455Questions
- How much does a first visit with Dr. Duong cost?
- Dr. Duong's negotiated rate with UnitedHealthcare for a new patient office visit, moderate-complexity decision-making, 45–59 minutes is $209, 20% below the California median of $262. This is the total the insurer and patient pay together; if you have not met your deductible you may owe all of it, and with a copay plan you pay only the copay.
- How much is a follow-up visit with Dr. Duong?
- An established patient office visit, high-complexity decision-making, 40–54 minutes is $225, 21% below the California median of $284. Most routine primary care follow-ups are billed as 99213 or 99214.
- Does Dr. Duong accept UnitedHealthcare?
- These rates were published in UnitedHealthcare's in-network price transparency file in February 2026, which indicates Dr. Duong was in at least one UnitedHealthcare network at that time. Networks change and vary by plan, so confirm with the office at (657) 241-8455 before booking.