DR. THANHMY NGUYEN BUI MD
NPI 1396842498
Hospitalist in Newport Beach, CA

Q: What is Thanhmy Bui's NPI number?

The NPI number for Thanhmy Bui is 1396842498. It was assigned to this individual provider in the NPPES registry on September 20, 2006.

Q: What is Thanhmy Bui's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Q: When was this NPI record last updated?

The NPPES record for Thanhmy Bui was last updated on April 7, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since September 20, 2006PECOS EnrolledAccepts Medicare Assignment

1 HOAG DR, NEWPORT BEACH, CA 92663(657) 241-3600(657) 241-7708 Get Directions Write a Review

NPPES record last updated: April 7, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Apr 7, 2020, Aug 8, 2018 (2 updates tracked since 2018).

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About Dr. Thanhmy Nguyen Bui Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. THANHMY NGUYEN BUI MD (NPI 1396842498) is an individual hospitalist provider in Newport Beach, California, licensed in California (A100618) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS and is a graduate of University Of Vermont College Of Medicine (2003).

NPPES Registry Identity

NPI1396842498

Entity TypeIndividualFemale

Primary Taxonomy208M00000X

Provider Legal NameDR. THANHMY NGUYEN BUICredential: MD

Location Address1 HOAG DRNewport Beach, CA 92663

Mailing AddressPo Box 3589Newport Beach, CA 92659-8589 · (657) 241-3600 · Fax (657) 241-7708

Phone(657) 241-3600

Fax(657) 241-7708

Sole ProprietorNo

Medical School CMSUniversity Of Vermont College Of MedicineGraduated 2003

Enumeration DateSeptember 20, 2006

Last NPPES UpdateApril 7, 20202 updates tracked since enumeration

NPPES CertifiedApril 7, 2020

✔ NPI 1396842498 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

License✔ Licensed in CA · A100618

Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Also ListedInternal MedicineTaxonomy 207R00000X · License 0101240782 (VA), A100618 (CA)

1 HOAG DR, Newport Beach, CA 92663

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Other Identifiers 1

Medicaid1396842498VA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Thanhmy Nguyen Bui Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5193824985

PECOS Enrollment IDI20080325000245

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Thanhmy Bui reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Pacific Hospitalist Associates A Medical Corporation

Same address

Hospitalist

1 HOAG DR
Newport Beach, CA 92663

Reassigned Medicare billing, California enrollment
105 clinicians in this Medicare group

NPI 1992750137 (949) 873-6181

Sutter Valley Medical Foundation

326 mi

Multi-Specialty

600 COFFEE RD
Modesto, CA 95355

Reassigned Medicare billing, California enrollment
3,056 clinicians in this Medicare group

NPI 1669846986 (209) 524-1211

Quantum Bay Area Hospitalist Medical Group Inc

348 mi

Hospitalist

2500 GRANT RD
Mountain View, CA 94040

Reassigned Medicare billing, California enrollment
217 clinicians in this Medicare group

NPI 1902279656 (650) 940-7000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

516 services211 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

225 services123 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

190 services185 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

117 services117 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92663 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Care Plan

Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…

100%50 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

3 suppliers12 claims12 services$14.82 avg. paid by Medicare

Patient lift, hydraulic or mechanical, includes any seat, sling, strap(s) or pad(s) E0630

DME-Other DME · category DE000N

2 suppliers11 claims11 services$28.00 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

3 suppliers23 claims23 services$62.07 avg. paid by Medicare

Standard wheelchair K0001

DME-Wheelchairs · category DD000N

2 suppliers12 claims12 services$18.76 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JACK MIN KAN M.D.

Anesthesiology

1 HOAG DR, DEPT OF ANESTHESIOLOGY
NEWPORT BEACH, CA 92663

Orange County (858) 565-9666

DR. MICHAEL GRAY MD

Hospitalist