Dr. Hoa Thi Ngoc Phan, DO
- Medicare services, 2024
- 34
- Medicare patients, 2024
- 51
- Part D claims, 2023
- 12
- Hospital affiliations
- 2
- Industry payments
- $203
- Practice address
- 1100 West Stewart Dr, Orange, CA 92868
- Practice phone
- Call (714) 633-9111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Hoa Thi Ngoc Phan is an internist in Orange, California
Dr. Phan practices at Providence St. Joseph Hospital Orange in Orange, California, part of Providence Health & Services.
Dr. Phan's NPI, 1295919686, was assigned on December 21, 2007. Dr. Phan holds California license 20A9763.
- NPI
- 1295919686NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3375695125
- NPI enumeration date
- December 21, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 633-9111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Hoa Thi Ngoc Phan practices at Providence St. Joseph Hospital Orange in Orange, California
Dr. Phan's primary practice is Providence St. Joseph Hospital Orange, at 1100 West Stewart Dr, Orange, CA 92868 in Orange County. The practice phone is (714) 633-9111.
- Providence St. Joseph Hospital Orange1100 West Stewart Dr, Orange, CA 92868 · Orange CountyPhone(714) 633-9111
Source: Dmand AI Affiliation Data
Dr. Hoa Thi Ngoc Phan is affiliated with 3 sites of care and 2 medical groups
Dr. Phan's primary practice is Providence St. Joseph Hospital Orange in Orange, California, part of Providence Health & Services. Dr. Phan is also affiliated with Temecula Valley Hospital. The medical group on file is Neurovascular and Spine Associates. Dmand AI also links Dr. Phan to 1 more group practice or clinic 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. Hoa Thi Ngoc 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 |
|---|---|
| Providence St. Joseph Hospital Orange | 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. Hoa Thi Ngoc Phan is one of 16,751 internists in California
Internal medicine is Dr. Phan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Phan is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Phan
Counts of internists 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. Hoa Thi Ngoc Phan billed Medicare for 34 services in 2024
CMS data shows 34 Medicare services from Dr. Phan across 2 procedure codes in 2024, for 51 Medicare patients. Medicare paid $3,068 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Phan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1222024: 3472%
Dr. Phan compared with the California median for internists, 2024
- Dr. Phan
- California median
- Medicare services
- 34vs 36191% below
- Medicare patients
- 51vs 15166% below
- Part D claims
- 12vs 42197% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Phan'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. Hoa Thi Ngoc Phan treated 51 Medicare patients in 2024, average age 79
CMS counts 51 Medicare patients who saw Dr. Phan in 2024. The largest group is 85 and over, with 20 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 49% are also on Medicaid. Their average risk score is 3.93, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Phan's median patient age at 73, with 56% women.
Dr. Phan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Phan's Medicare patients by sex, 2024
- Women2651%
- Men2549%
Chronic conditions among Dr. Phan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Atrial fibrillation61%
- Chronic kidney disease57%
- Diabetes53%
- Alzheimer's and dementia51%
- Heart failure51%
- Ischemic heart disease51%
Share of Medicare patients with each condition. A patient can have several.
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 73
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Hoa Thi Ngoc Phan wrote 12 Medicare Part D claims in 2023
In 2023, Dr. Phan wrote 12 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $67 in total drug cost. In 2022, CMS named 937 claims across 30 drugs.
Dr. Phan's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 9372023: 1299%
Drugs named by CMS: 1 in 2023, 30 in 2022.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Hoa Thi Ngoc Phan takes part in Medicare
Dr. Phan 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. Hoa Thi Ngoc Phan received $203 in industry payments from 2018 to 2025
CMS Open Payments shows 10 general payments to Dr. Phan from 6 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $96.
General payments to Dr. Phan by program year, 2018 to 2025
Companies that paid Dr. Phan the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Hoa Thi Ngoc 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 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) |
| 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. Hoa Thi Ngoc 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. Hoa Thi Ngoc Phan's NPI number?
Dr. Hoa Thi Ngoc Phan's NPI number is 1295919686. It was assigned on December 21, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Hoa Thi Ngoc Phan?
Dr. Hoa Thi Ngoc Phan is an internist in Orange, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Hoa Thi Ngoc Phan practice?
Dr. Phan practices at 1100 West Stewart Dr, Orange, CA 92868. Dr. Phan's primary practice is Providence St. Joseph Hospital Orange in Orange, California, part of Providence Health & Services. Dmand AI also links Dr. Phan to 1 group practice or clinic and 1 medical group.
What is Dr. Hoa Thi Ngoc Phan's office phone number?
The practice phone on file for Dr. Phan is (714) 633-9111.
What is Dr. Hoa Thi Ngoc Phan's medical license number?
Dr. Phan holds California license 20A9763.
Which hospitals is Dr. Hoa Thi Ngoc Phan affiliated with?
Dr. Phan practices at Providence St. Joseph Hospital Orange in Orange, California. Dr. Phan is also affiliated with Temecula Valley Hospital.
What medical group is Dr. Hoa Thi Ngoc Phan part of?
Dr. Phan is linked to Neurovascular and Spine Associates. Dmand AI links Dr. Phan to 1 more medical group.
Does Dr. Hoa Thi Ngoc Phan accept Medicare?
Yes. CMS data shows Dr. Phan billed Medicare for 34 services in 2024, and Dr. Phan accepts Medicare assignment.
How many Medicare patients does Dr. Hoa Thi Ngoc Phan see?
CMS counts 51 Medicare patients who saw Dr. Phan in 2024, with an average age of 79.
What services does Dr. Hoa Thi Ngoc Phan bill to Medicare?
In 2024, Dr. Phan's most billed Medicare services were hospital inpatient care (99222) and hospital inpatient care (99221).
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What drugs does Dr. Hoa Thi Ngoc Phan prescribe most?
In 2023 Medicare Part D data, Dr. Phan's most prescribed drugs by claims were Amlodipine Besylate.
Has Dr. Hoa Thi Ngoc Phan received payments from drug or device companies?
CMS Open Payments shows $203 in general payments to Dr. Phan from 6 companies from 2018 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Hoa Thi Ngoc Phan been practicing?
Dr. Phan graduated from medical school in 2005, 21 years ago.
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