Doctor profile · Federal record

Dr. Mary Bui

Nephrology Physician (CMS: Nephrology) · Upland, CA

  • NPI 1841225224
  • Accepts Medicare
  • 32 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1317 W Foothill Blvd, Ste 148
Upland, CA 917863676
(909) 981-5882
fax (909) 946-0833
Mailing address
Po Box 1869
Upland, CA 917851869

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
January 30, 2020
Year of graduation
1994 — 32 yrs since
Specialty taxonomy
207RN0300X — NUCC code
State license (1)
California #20A8116
Medicaid
CA #00AX81160

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841225224. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
10,223
Distinct HCPCS
10
Medicare allowed
$828,273
HCPCS Description Services Patients Avg allowed
Q9967 Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml 7,738 119 $0
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 610 138 $122
99214 Established patient office or other outpatient visit, 30-39 minutes 229 122 $119
90960 Dialysis services, 4 or more physician visits per month (20 years or older) 220 39 $359
99152 Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 106 86 $53
75710 Review by radiologist of arm or leg artery image 102 83 $156
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 97 33 $59
36215 Insertion of tube into chest or arm artery, each first order branch 95 79 $606
J2997 Injection, alteplase recombinant, 1 mg 89 30 $87
99439 Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 81 31 $49

In context: peer comparison

Among 7 peers in Upland Nephrology Physician, average services per provider: 261. This provider delivers 39× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$602
Transactions
26
Manufacturers
10
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals Lp 6 $164.57
Akebia Therapeutics INC 6 $131.36
Aurinia Pharma U.S., INC. 5 $90.89
Vifor Pharma, INC. 2 $44.46
Calliditas Therapeutics US INC. 1 $39.62
Biotronik INC. 1 $38.66
Fresenius USA Marketing, INC. 2 $35.77
Bayer Healthcare Pharmaceuticals INC. 1 $20.76
Bard Peripheral Vascular, INC. 1 $20.01
Novo Nordisk INC 1 $15.44

By nature of payment

Food and Beverage
$577
Education
$25

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,160
Patients
376
Total drug cost
$95,869
Drug Type Claims Patients Total cost
Amlodipine Besylate Generic 155 52 $2,144
Calcitriol Generic 146 54 $6,152
Furosemide Generic 113 37 $730
Allopurinol Generic 112 37 $1,576
Hydralazine Hcl Generic 108 36 $2,204
Losartan Potassium Generic 79 22 $1,270
Carvedilol Generic 77 22 $1,150
Chlorthalidone Generic 62 17 $2,147
Lokelma (Sodium Zirconium Cyclosilicate) Brand 61 18 $39,722
Sevelamer Carbonate Generic 61 16 $34,129

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Bui's medical specialty?
Dr. Mary Bui practices Nephrology Physician in Upland, CA.
Where does Dr. Mary Bui practice?
Dr. Mary Bui practices at 1317 W Foothill Blvd, Upland, CA 917863676. Office phone: 9099815882.
What is Dr. Mary Bui's NPI?
Dr. Mary Bui's National Provider Identifier (NPI) is 1841225224, issued by NPPES.
Does Dr. Mary Bui accept Medicare assignment?
Yes. Dr. Mary Bui accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Bui commonly perform?
Top Medicare-reported procedures in 2023: Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.