Dr. Lewis Bui , DO
Emergency Medicine โข Cypress, TX
27160 Highway 290 Ste 107
Cypress, TX 774338711
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on July 13, 2012; this date does not establish years in practice.
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Published CMS data list 90 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99285 โ Emergency department visit with high level of medical decision making: 46 service units.
- 99284 โ Emergency department visit with moderate level of medical decision making: 44 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See the full table ยท Guide: How to read Medicare Part B data
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Published CMS data list 25 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Ciprofloxacin Hcl โ 13 prescription fills, including refills.
- Ondansetron Hcl โ 12 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table ยท Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 90% of clinicians listed under Emergency Medicine in Cypress, TX (2024, 13 clinicians with data). Median for this group: 148. Middle half: 93 to 431.
Fewer Medicare Part B services than 80% of clinicians listed under Emergency Medicine in Texas (2024, 3,145 clinicians with data). Median for this group: 290. Middle half: 132 to 513.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 113 in 2018 to 90 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2018โ2024.
Practice Location & Contact Primary Location
27160 Highway 290 Ste 107
Cypress, TX 774338711
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 2 distinct additional practice-address records in Houston, TX; Westminster, CO. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 5 distinct group names: Canyon Springs Emergency Medicine Associates Pa; Edinburg Emergency Medicine Associates Pa; Mcallen Emergency Medicine Associates Pa and 2 more. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Lake Erie College Of Osteopathic Medicine, Erie
2012
What Public CMS Data Show
Emergency Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
92 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $13,286 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Paid by Medicare
About $10,043 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
30-day fills
25 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$222 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019โ2025.
Years since graduation
14 years (graduated 2012)
CMS Doctors and Clinicians data list 2012 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2012
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Bui has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Bui as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Cypress and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 90% of clinicians listed under Emergency Medicine in Cypress, TX (2024, 13 clinicians with data). Median for this group: 148. Middle half: 93 to 431.
Fewer Medicare Part B services than 80% of clinicians listed under Emergency Medicine in Texas (2024, 3,145 clinicians with data). Median for this group: 290. Middle half: 132 to 513.
Medicare-allowed amount
A lower Medicare-allowed amount than 75% of clinicians listed under Emergency Medicine in Cypress, TX (2024, 13 clinicians with data). Median for this group: $14,680. Middle half: $13,286 to $51,263.
A lower Medicare-allowed amount than 80% of clinicians listed under Emergency Medicine in Texas (2024, 3,145 clinicians with data). Median for this group: $36,170. Middle half: $16,337 to $61,083.
Paid by Medicare
A lower Medicare payment amount than 75% of clinicians listed under Emergency Medicine in Cypress, TX (2024, 13 clinicians with data). Median for this group: $10,934. Middle half: $10,043 to $38,951.
A lower Medicare payment amount than 75% of clinicians listed under Emergency Medicine in Texas (2024, 3,145 clinicians with data). Median for this group: $27,475. Middle half: $12,386 to $47,065.
Medicare Part D prescriptions
Fewer Part D prescriptions than 75% of clinicians listed under Emergency Medicine in Cypress, TX (2024, 14 clinicians with data). Median for this group: 63. Middle half: 25 to 182.
Fewer Part D prescriptions than 85% of clinicians listed under Emergency Medicine in Texas (2024, 2,614 clinicians with data). Median for this group: 114. Middle half: 46 to 221.
Part D drug cost
A lower Part D drug cost than 65% of clinicians listed under Emergency Medicine in Cypress, TX (2024, 14 clinicians with data). Median for this group: $551. Middle half: $167 to $952.
A lower Part D drug cost than 80% of clinicians listed under Emergency Medicine in Texas (2024, 2,614 clinicians with data). Median for this group: $839. Middle half: $311 to $1,721.
15 active clinicians are listed under Emergency Medicine with a practice address in Cypress, TX (4,895 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Cypress
0% of these 15 clinicians have the CMS telehealth indicator.
66.7% of these 15 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 20% from 113 in 2018 to 90 in 2024.
- 2018: 113
- 2019: 11
- 2021: 23
- 2023: 2,052
- 2024: 90
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Medicare-allowed amount
Medicare-allowed amount increased 22% from $10,925 in 2018 to $13,286 in 2024.
- 2018: $10,925
- 2019: $1,749
- 2021: $1,736
- 2023: $26,266
- 2024: $13,286
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Paid by Medicare
Paid by Medicare increased 26% from $7,990 in 2018 to $10,043 in 2024.
- 2018: $7,990
- 2019: $1,394
- 2021: $1,482
- 2023: $25,681
- 2024: $10,043
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Medicare Part D prescriptions
Medicare Part D prescriptions went from 11 in 2015 to 25 in 2024.
- 2015: 11
- 2016: 11
- 2024: 25
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30-day fills
30-day fills went from 11 in 2015 to 25 in 2024.
- 2015: 11
- 2016: 11
- 2024: 25
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Part D drug cost
Part D drug cost went from $45 in 2015 to $222 in 2024.
- 2015: $45
- 2016: $76
- 2024: $222
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2017โ2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99285
Emergency department visit with high level of medical decision making
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46 | 45 | $1251.26 | $173.82 |
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99284
Emergency department visit with moderate level of medical decision making
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44 | 42 | $761.18 | $120.24 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 13 | 116 | $174.08 | 13 |
| Ondansetron Hcl | Ondansetron Hcl | 12 | 44 | $48.16 | 12 |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-12-18NUCC Taxonomy Code: 207P00000X
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
NUCC Taxonomy Code: 207P00000X
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
NUCC Taxonomy Code: 202K00000X
Phlebology is the medical discipline that involves the diagnosis and treatment of venous disorders, including spider veins, varicose veins, chronic venous insufficiency, venous leg ulcers, congenital venous abnormalities, venous thromboembolism and other disorders of venous origin. A phlebologist has attained a minimum of 50 hours of CME units in phlebology-related courses, and is knowledgeable of and trained in a variety of diagnostic techniques including physical examination, venous imaging techniques such as duplex ultrasound, CT and MR, plethysmographic techniques and laboratory evaluation related to venous thromboembolism. The phlebologist is also trained in a variety of therapeutic interventions, which may include compression, sclerotherapy, cutaneous vascular laser, endovenous thermoablation procedures (laser and radiofrequency) endovenous chemical ablation, surgical procedures (e.g., ambulatory phlebectomy, venous ligation), vasoactive medications and the management of venous thromboembolism.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - EMERGENCY MEDICINE
I20141002001045
TX
5597985184
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Edinburg Emergency Medicine Associates Pa
900 E Interstate Hwy 2, Mission, TX 785725756
Phone: 9562711200
Oak Creek Emergency Medicine Associates Pa
3700 W Nolana Ave, Mcallen, TX 785044884
Phone: 9562132700
Mcallen Emergency Medicine Associates Pa
301 W Expressway, Mcallen, TX 785033045
Phone: 9566324000
Usa Vein Clinics Of Dallas Pllc
1017 W Randol Mill Rd, Arlington, TX 760122513
Phone: 6827121132
Canyon Springs Emergency Medicine Associates Pa
140 Frontage Rd, Alamo, TX 785161602
Phone: 9564035100
Secondary Practice Locations
7233 Church Ranch Blvd
Westminster, CO 800214094
Phone: 7208193655
16307 Fm 529 Rd Ste A
Houston, TX 770951417
Phone: 3465022062
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Surgery
Doctor of Medicine (M.D.)
Surgery
Doctor of Medicine (M.D.)
Surgery - Vascular Surgery
Doctor of Medicine (M.D.)
Surgery - Vascular Surgery
Doctor of Medicine (M.D.)
Surgery
Doctor of Osteopathic Medicine (D.O.)
Specialist
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 27160 HIGHWAY 290 STE 107, CYPRESS, TX 774338711 (Tel: 8009916117)
Registered at 3820 NORTHDALE BLVD STE 201, TAMPA, FL 336241893 (Tel: 8009918191)
Emergency Medicine (license number reported to NPPES: TX P8649)
Registered at 7233 CHURCH RANCH BLVD, WESTMINSTER, CO 800214094 (Tel: 7208193655)
Registered at 7233 CHURCH RANCH BLVD, WESTMINSTER, CO 800214094 (Tel: 3039254420)
Registered at 6025 PARFET ST, ARVADA, CO 800044648 (Tel: 7208193655)
Registered at 6025 PARFET ST, ARVADA, CO 800044648 (Tel: 7208193655)
NPI status registered as active in NPPES database
Registered at 6431 FANNIN ST, HOUSTON, TX 770301501 (Tel: 7135005517)
Registered at PO BOX 17571, DENVER, CO 802170571 (Tel: 3169922461)
Recorded as LEWIS BUI, D.O.
Emergency Medicine (license number reported to NPPES: CO 54789)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Emergency Medicine Providers in Cypress
- Dr. Kenneth Ro, MD
- Dr. Harjot Singh, MD
- Dr. Daniel Kim, MD
- Dr. Maiphuong Huynh, DO
- Dr. David Adewole, MD
- Dr. Amber Sneed, MD, MPH
Mailing Address
3820 Northdale Blvd Ste 201
Tampa, FL 336241893
Phone: 8009918191