Dr. Phuc Kim Nguyen, MD
- Medicare services, 2024
- 791
- Medicare patients, 2024
- 334
- Part D claims, 2024
- 656
- Hospital affiliations
- 1
- Industry payments
- $226
- Practice address
- 1200 B Gale Wilson Blvd, Fairfield, CA 94533
- Practice phone
- Call (707) 646-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nguyen'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. Phuc Kim Nguyen is an internist in Fairfield, California
Dr. Nguyen practices at NorthBay Medical Center in Fairfield, California, part of NorthBay Healthcare.
Dr. Nguyen's NPI, 1740442813, was assigned on June 30, 2008. Dr. Nguyen graduated from OU College of Medicine in 2008. Dr. Nguyen's Florida license number on file is TRN12458.
- NPI
- 1740442813NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628238375
- NPI enumeration date
- June 30, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (707) 646-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Phuc Kim Nguyen practices at NorthBay Medical Center in Fairfield, California
Dr. Nguyen's primary practice is NorthBay Medical Center, at 1200 B Gale Wilson Blvd, Fairfield, CA 94533 in Solano County. The practice phone is (707) 646-5000.
- NorthBay Medical Center1200 B Gale Wilson Blvd, Fairfield, CA 94533 · Solano CountyPhone(707) 646-5000
Source: Dmand AI Affiliation Data
Dr. Phuc Kim Nguyen is affiliated with 2 sites of care and 2 medical groups
Dr. Nguyen's primary practice is NorthBay Medical Center in Fairfield, California, part of NorthBay Healthcare. The medical group on file is NorthBay Medical Center. Dmand AI also links Dr. Nguyen to 1 more hospice and 1 medical group, each named with a free account. Dr. Nguyen's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Phuc Kim Nguyen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nguyen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| NorthBay Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across NorthBay Healthcare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Phuc Kim Nguyen is one of 16,751 internists in California
Internal medicine is Dr. Nguyen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Nguyen's licenses on file in 2 states: Florida and California.
Specialties and state licenses
- Internal medicine, FloridaPrimary
- California license
Clinical focus
Dmand AI lists acute respiratory failure, cellulitis, circulatory problems in extremities, cirrhosis, electrolyte disorders, gastrointestinal infection, gastrointestinal obstruction and heart attack among the conditions Dr. Nguyen treats.
Internists near Dr. Nguyen
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. Phuc Kim Nguyen billed Medicare for 791 services in 2024
CMS data shows 791 Medicare services from Dr. Nguyen across 5 procedure codes in 2024, for 334 Medicare patients. Medicare paid $74,898 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Nguyen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0472024: 73630%
- Other services
- 2023: 02024: 55
Dr. Nguyen compared with the California median for internists, 2024
- Dr. Nguyen
- California median
- Medicare services
- 791vs 3612.2 times
- Medicare patients
- 334vs 1512.2 times
- Part D claims
- 369vs 42112% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Nguyen'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.
Need commercial claims for Dr. Nguyen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nguyen and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Phuc Kim Nguyen treated 334 Medicare patients in 2024, average age 75
CMS counts 334 Medicare patients who saw Dr. Nguyen in 2024. The largest group is 65 to 74, with 108 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 47% are also on Medicaid. Their average risk score is 2.85, 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. Nguyen's median patient age at 61, with 48% women.
Dr. Nguyen's Medicare patients by age, 2024
Dr. Nguyen's Medicare patients by sex, 2024
- Women17753%
- Men15747%
Chronic conditions among Dr. Nguyen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease56%
- Diabetes55%
- Arthritis51%
- Heart failure50%
- Ischemic heart disease49%
- Mood disorders43%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nguyen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women48%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Phuc Kim Nguyen wrote 656 Medicare Part D claims in 2024
In 2024, Dr. Nguyen wrote 656 Medicare Part D claims for 174 patients. 89% of them were for generic drugs. CMS names the drug for 369 of them, across 16 drugs with 11 or more claims each, at $21,434 in total drug cost. In 2023, CMS named 324 claims across 16 drugs.
Dr. Nguyen's Part D claims by kind of drug, 2024
- Generic583 claims89%
- Brand-name and other73 claims11%
Dr. Nguyen'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. Nguyen's Part D claims, 2024
- Opioids5%31 of 656 claims
- Antibiotics24%155 of 656 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: 3242024: 36914%
Drugs named by CMS: 16 in 2024, 16 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
How Dr. Phuc Kim Nguyen takes part in Medicare
Dr. Nguyen 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. Phuc Kim Nguyen received $226 in industry payments from 2016 to 2024
CMS Open Payments shows 7 general payments to Dr. Nguyen from 3 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $187.
General payments to Dr. Nguyen by program year, 2016 to 2024
Companies that paid Dr. Nguyen the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Phuc Kim Nguyen graduated from OU College of Medicine
Dr. Nguyen graduated from OU College of Medicine in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Phuc Kim Nguyen accepts plans from 7 insurance carriers
Dr. Nguyen is in network with 7 carriers, including Aetna, Excellus BlueCross BlueShield and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Aetna
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
Plan types Dr. Nguyen accepts, by number of carriers
- Medicare6
- PPO6
- HMO3
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Phuc Kim Nguyen'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)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. Phuc Kim Nguyen
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. Phuc Kim Nguyen's NPI number?
Dr. Phuc Kim Nguyen's NPI number is 1740442813. It was assigned on June 30, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Phuc Kim Nguyen?
Dr. Phuc Kim Nguyen is an internist in Fairfield, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Phuc Kim Nguyen practice?
Dr. Nguyen practices at 1200 B Gale Wilson Blvd, Fairfield, CA 94533. Dr. Nguyen's primary practice is NorthBay Medical Center in Fairfield, California, part of NorthBay Healthcare. Dmand AI also links Dr. Nguyen to 1 hospice and 1 medical group.
What is Dr. Phuc Kim Nguyen's office phone number?
The practice phone on file for Dr. Nguyen is (707) 646-5000.
What is Dr. Phuc Kim Nguyen's medical license number?
Dr. Nguyen's Florida license number on file is TRN12458, one of the licenses on file in 2 states.
Which states has Dr. Phuc Kim Nguyen been licensed in?
Dmand AI has state licenses on file for Dr. Nguyen in Florida (2012 to 2014) and California (2011 to 2027).
Which hospitals is Dr. Phuc Kim Nguyen affiliated with?
Dr. Nguyen practices at NorthBay Medical Center in Fairfield, California.
What medical group is Dr. Phuc Kim Nguyen part of?
Dr. Nguyen is linked to NorthBay Medical Center. Dmand AI links Dr. Nguyen to 1 more medical group.
Does Dr. Phuc Kim Nguyen accept Medicare?
Yes. CMS data shows Dr. Nguyen billed Medicare for 791 services in 2024, and Dr. Nguyen accepts Medicare assignment.
How many Medicare patients does Dr. Phuc Kim Nguyen see?
CMS counts 334 Medicare patients who saw Dr. Nguyen in 2024, with an average age of 75.
Show 6 more questionsShow fewer questions
What services does Dr. Phuc Kim Nguyen bill to Medicare?
In 2024, Dr. Nguyen's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99239) and hospital inpatient care (99232).
Where did Dr. Phuc Kim Nguyen go to medical school?
Dr. Nguyen graduated from OU College of Medicine in 2008.
What drugs does Dr. Phuc Kim Nguyen prescribe most?
In 2024 Medicare Part D data, Dr. Nguyen's most prescribed drugs by claims were Pantoprazole Sodium, Amoxicillin-Clavulanate Potass and Atorvastatin Calcium.
Has Dr. Phuc Kim Nguyen received payments from drug or device companies?
CMS Open Payments shows $226 in general payments to Dr. Nguyen from 3 companies from 2016 to 2024. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Phuc Kim Nguyen been practicing?
Dr. Nguyen graduated from medical school in 2008, 18 years ago.
What insurance does Dr. Phuc Kim Nguyen accept?
Dr. Nguyen is in network with 7 carriers, including Aetna, Excellus BlueCross BlueShield and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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