Dr. Hieu Thuan Phan, MD
- Medicare services, 2016
- 316
- Part D claims, 2024
- 6,677
- Hospital affiliations
- 1
- Industry payments
- $1,877
- Medical groups
- 2
- Practice address
- 9961 Sierra Ave, Fontana, CA 92335
- Practice phone
- Call (909) 427-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Phan'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. Hieu Thuan Phan is a family medicine physician in Fontana, California
Dr. Phan practices at Fontana Medical Center in Fontana, California, part of Kaiser Permanente.
Dr. Phan's NPI, 1053549931, was assigned on June 30, 2009. Dr. Phan graduated from Ross University School of Medicine in 2009. Dr. Phan's California license number on file is A123432.
- NPI
- 1053549931NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3779739420
- NPI enumeration date
- June 30, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (909) 427-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Hieu Thuan Phan practices at Fontana Medical Center in Fontana, California
Dr. Phan's primary practice is Fontana Medical Center, at 9961 Sierra Ave, Fontana, CA 92335 in San Bernardino County. The practice phone is (909) 427-5000.
- Fontana Medical Center9961 Sierra Ave, Fontana, CA 92335 · San Bernardino CountyPhone(909) 427-5000
Source: Dmand AI Affiliation Data
Dr. Hieu Thuan Phan is affiliated with 3 sites of care and 2 medical groups
Dr. Phan's primary practice is Fontana Medical Center in Fontana, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Phan to 2 more group practices and clinics and 1 medical group, 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. Hieu Thuan Phan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Phan practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fontana Medical Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Hieu Thuan Phan is one of 15,680 family medicine physicians in California
Family medicine is Dr. Phan's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Phan is board certified in family medicine by the American Board of Family Medicine. Dmand AI has Dr. Phan's licenses on file in 2 states: California and Michigan.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
- Michigan license
Clinical focus
Dmand AI lists acute skin infection among the conditions Dr. Phan treats.
Family medicine physicians near Dr. Phan
Counts of family medicine physicians 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. Hieu Thuan Phan billed Medicare for 316 services in 2016
CMS data shows 316 Medicare services from Dr. Phan across 5 procedure codes in 2016. Medicare paid $15,909 for them. Every service was in an office.
Dr. Phan's Medicare services by type, 2016
- Office and hospital visits252
- Other services27
- Tests and treatments22
- Lab and pathology15
Dr. Phan compared with the California median for family medicine physicians, 2016
- Dr. Phan
- California median
- Medicare services
- 316vs 24628% above
- Part D claims
- 6,032vs 8337.2 times
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Phan's most billed Medicare procedure codes, 2016
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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Phan and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Hieu Thuan Phan's patients have a median age of 48
Across all payers, Dmand AI patient panel data puts Dr. Phan's median patient age at 48, with 55% women.
Dr. Phan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 48
Patient panel by sex, all payers
- Women55%
- Men45%
Source: Dmand AI Patient Panel Data
Dr. Hieu Thuan Phan wrote 6,677 Medicare Part D claims in 2024
In 2024, Dr. Phan wrote 6,677 Medicare Part D claims for 1,692 patients. 89% of them were for generic drugs. CMS names the drug for 6,032 of them, across 105 drugs with 11 or more claims each, at $237,475 in total drug cost. In 2023, CMS named 3,805 claims across 82 drugs.
Dr. Phan's Part D claims by kind of drug, 2024
- Generic5,914 claims89%
- Brand-name654 claims10%
- Other109 claims2%
Dr. Phan'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.
Drug classes CMS tracks in Dr. Phan's Part D claims, 2024
- Opioids4%244 of 6,677 claims
- Antibiotics1%99 of 6,677 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3,8052024: 6,03259%
Drugs named by CMS: 105 in 2024, 82 in 2023.
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. Hieu Thuan Phan offers telehealth to Medicare patients
Dr. Phan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Phan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Hieu Thuan Phan received $1,877 in industry payments from 2016 to 2023
CMS Open Payments shows 120 general payments to Dr. Phan from 17 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $360.
General payments to Dr. Phan by program year, 2016 to 2023
Companies that paid Dr. Phan the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Hieu Thuan Phan graduated from Ross University School of Medicine
Dr. Phan graduated from Ross University School of Medicine in 2009.
- Medical school
- Board certified in family medicine
Source: Dmand AI Professional Profile Data
Dr. Hieu Thuan Phan accepts plans from 2 insurance carriers
Dr. Phan is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Phan accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Hieu Thuan Phan'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 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 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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Hieu Thuan Phan
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. Hieu Thuan Phan's NPI number?
Dr. Hieu Thuan Phan's NPI number is 1053549931. It was assigned on June 30, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Hieu Thuan Phan?
Dr. Hieu Thuan Phan is a family medicine physician in Fontana, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Hieu Thuan Phan practice?
Dr. Phan practices at 9961 Sierra Ave, Fontana, CA 92335. Dr. Phan's primary practice is Fontana Medical Center in Fontana, California, part of Kaiser Permanente. Dmand AI also links Dr. Phan to 2 group practices and clinics and 1 medical group.
What is Dr. Hieu Thuan Phan's office phone number?
The practice phone on file for Dr. Phan is (909) 427-5000.
What is Dr. Hieu Thuan Phan's medical license number?
Dr. Phan's California license number on file is A123432, one of the licenses on file in 2 states.
Which states has Dr. Hieu Thuan Phan been licensed in?
Dmand AI has state licenses on file for Dr. Phan in California (2012 to 2025) and Michigan (2012 to 2016).
Which hospitals is Dr. Hieu Thuan Phan affiliated with?
Dr. Phan practices at Fontana Medical Center in Fontana, California.
What medical group is Dr. Hieu Thuan Phan part of?
Dr. Phan is linked to Southern California Permanente Medical Group. Dmand AI links Dr. Phan to 1 more medical group.
Does Dr. Hieu Thuan Phan accept Medicare?
Yes. CMS data shows Dr. Phan billed Medicare for 316 services in 2016, and Dr. Phan accepts Medicare assignment.
Does Dr. Hieu Thuan Phan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Phan as offering telehealth services.
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Is Dr. Hieu Thuan Phan board certified?
Yes. Dr. Phan is board certified in family medicine by the American Board of Family Medicine.
What services does Dr. Hieu Thuan Phan bill to Medicare?
In 2016, Dr. Phan's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and medicare service (G0008).
Where did Dr. Hieu Thuan Phan go to medical school?
Dr. Phan graduated from Ross University School of Medicine in 2009.
What drugs does Dr. Hieu Thuan Phan prescribe most?
In 2024 Medicare Part D data, Dr. Phan's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
Has Dr. Hieu Thuan Phan received payments from drug or device companies?
CMS Open Payments shows $1,877 in general payments to Dr. Phan from 17 companies from 2016 to 2023. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Hieu Thuan Phan been practicing?
Dr. Phan graduated from medical school in 2009, 17 years ago.
What insurance does Dr. Hieu Thuan Phan accept?
Dr. Phan is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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