Mary Phuong Bui
- Medicare services, 2024
- 8,520
- Medicare patients, 2024
- 623
- Part D claims, 2024
- 2,161
- Hospital affiliations
- 5
- Industry payments
- $1,984
- Practice address
- 1317 W Foothill Blvd, Upland, CA 91786
- Practice phone
- Call (909) 982-4040
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Upland Vascular Center
Upland, California
Find Mary Bui'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.
Mary Phuong Bui is a nephrologist in Upland, California
Mary Bui practices at Upland Vascular Center in Upland, California.
Mary Bui's NPI, 1841225224, was assigned on July 12, 2006. Mary Bui graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1994. Mary Bui holds California license 20A8116.
- NPI
- 1841225224NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103876685
- NPI enumeration date
- July 12, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (909) 982-4040
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Mary Phuong Bui practices at Upland Vascular Center in Upland, California
Mary Bui's primary practice is Upland Vascular Center, at 1317 W Foothill Blvd, Upland, CA 91786 in San Bernardino County. The practice phone is (909) 982-4040.
- Upland Vascular Center1317 W Foothill Blvd, Upland, CA 91786 · San Bernardino CountyPhone(909) 982-4040
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Mary Phuong Bui is affiliated with 11 sites of care and 1 medical group
Mary Bui's primary practice is Upland Vascular Center in Upland, California. Mary Bui is also affiliated with San Antonio Regional Hospital. The medical group on file is Nephrology Associates of Upland and Pomona. Dmand AI also links Mary Bui to 4 more hospitals, 4 dialysis centers and 1 group practice or clinic, 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 Mary Phuong Bui's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mary Bui practices, 10 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Upland Vascular Center | Available with a free account |
| +10 more affiliated sites | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Mary Phuong Bui is one of 1,401 nephrologists in California
Nephrology is Mary Bui's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Mary Bui is licensed in California.
Specialties and state licenses
- Nephrology, CaliforniaPrimary
Nephrologists near Mary Bui
Counts of nephrologists 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
Mary Phuong Bui billed Medicare for 8,520 services in 2024
CMS data shows 8,520 Medicare services from Mary Bui across 27 procedure codes in 2024, for 623 Medicare patients. Medicare paid $461,804 for them.
Mary Bui's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 7,7382024: 5,68127%
- Office and hospital visits
- 2023: 1,2932024: 1,67229%
- Surgery
- 2023: 5042024: 5356%
- Tests and treatments
- 2023: 4172024: 4221%
- Imaging
- 2023: 1822024: 16012%
- Drugs given in the office
- 2023: 892024: 5044%
Where Mary Bui's Medicare services took place, 2024
- In an office7,22485%
- In a facility1,29615%
Mary Bui compared with the California median for nephrologists, 2024
- Mary Bui
- California median
- Medicare services
- 8,520vs 1,0847.9 times
- Medicare patients
- 623vs 3072.0 times
- Part D claims
- 1,976vs 9552.1 times
Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.
Mary Bui'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 Mary Bui?
Medicare shows one payer. Book a meeting to get commercial claims data for Mary Bui and other nephrologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Mary Phuong Bui treated 623 Medicare patients in 2024, average age 70
CMS counts 623 Medicare patients who saw Mary Bui in 2024. The largest group is 65 to 74, with 212 patients. 75% of them have chronic kidney disease, and 75% have diabetes. 70% are also on Medicaid. Their average risk score is 6.09, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Mary Bui's median patient age at 69, with 48% women.
Mary Bui's Medicare patients by age, 2024
Mary Bui's Medicare patients by sex, 2024
- Women30649%
- Men31751%
Chronic conditions among Mary Bui's Medicare patients, 2024
- Chronic kidney disease75%
- Diabetes75%
- High blood pressure75%
- High cholesterol75%
- Heart failure59%
- Ischemic heart disease49%
- Arthritis43%
- Mood disorders34%
Share of Medicare patients with each condition. A patient can have several.
Mary Bui's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mary Phuong Bui wrote 2,161 Medicare Part D claims in 2024
In 2024, Mary Bui wrote 2,161 Medicare Part D claims for 349 patients. 85% of them were for generic drugs. CMS names the drug for 1,976 of them, across 52 drugs with 11 or more claims each, at $219,515 in total drug cost. In 2023, CMS named 1,664 claims across 41 drugs.
Mary Bui's Part D claims by kind of drug, 2024
- Generic1,839 claims85%
- Brand-name and other322 claims15%
Mary Bui'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 Mary Bui's Part D claims, 2024
- Opioids1%11 of 2,161 claims
- Antibiotics4%86 of 2,161 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: 1,6642024: 1,97619%
Drugs named by CMS: 52 in 2024, 41 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
Mary Phuong Bui offers telehealth to Medicare patients
Mary Bui accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Mary Bui as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Mary Phuong Bui received $1,984 in industry payments from 2016 to 2025
CMS Open Payments shows 96 general payments to Mary Bui from 27 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 97% of the total. AstraZeneca Pharmaceuticals LP paid the most, $334.
General payments to Mary Bui by program year, 2016 to 2025
General payments to Mary Bui by kind, 2016 to 2025
- Food and beverage$1,93297%
- Education$523%
Companies that paid Mary Bui the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Mary Phuong Bui graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville
Mary Bui graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Mary Phuong Bui'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) |
| 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 Mary Phuong Bui
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mary Phuong Bui's NPI number?
Mary Phuong Bui's NPI number is 1841225224. It was assigned on July 12, 2006, and it is active in the NPI Registry.
What does Mary Phuong Bui specialize in?
Mary Phuong Bui is a nephrologist in Upland, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Mary Phuong Bui practice?
Mary Bui practices at 1317 W Foothill Blvd, Upland, CA 91786. Mary Bui's primary practice is Upland Vascular Center in Upland, California. Dmand AI also links Mary Bui to 4 hospitals, 4 dialysis centers and 1 group practice or clinic.
What is Mary Phuong Bui's office phone number?
The practice phone on file for Mary Bui is (909) 982-4040.
What is Mary Phuong Bui's medical license number?
Mary Bui holds California license 20A8116.
Which hospitals is Mary Phuong Bui affiliated with?
Mary Bui is affiliated with San Antonio Regional Hospital. Dmand AI links Mary Bui to 4 more hospitals.
What medical group is Mary Phuong Bui part of?
Mary Bui is linked to Nephrology Associates of Upland and Pomona.
Does Mary Phuong Bui accept Medicare?
Yes. CMS data shows Mary Bui billed Medicare for 8,520 services in 2024, and Mary Bui accepts Medicare assignment.
Does Mary Phuong Bui offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Mary Bui as offering telehealth services.
How many Medicare patients does Mary Phuong Bui see?
CMS counts 623 Medicare patients who saw Mary Bui in 2024, with an average age of 70.
Show 5 more questionsShow fewer questions
What services does Mary Phuong Bui bill to Medicare?
In 2024, Mary Bui's most billed Medicare services were medicare temporary code (Q9967), hospital inpatient care (99233) and dialysis (90960).
Where did Mary Phuong Bui go to medical school?
Mary Bui graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1994.
What drugs does Mary Phuong Bui prescribe most?
In 2024 Medicare Part D data, Mary Bui's most prescribed drugs by claims were Amlodipine Besylate, Calcitriol and Losartan Potassium.
Has Mary Phuong Bui received payments from drug or device companies?
CMS Open Payments shows $1,984 in general payments to Mary Bui from 27 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Mary Phuong Bui been practicing?
Mary Bui graduated from medical school in 1994, 32 years ago.
Selling to nephrology practices?
See nephrologists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card