DR. TOM T NGUYEN M.D.
NPI 1144269382
Hospitalist in Walnut Creek, CA

Q: What is Tom Nguyen's NPI number?

The NPI number for Tom Nguyen is 1144269382. It was assigned to this individual provider in the NPPES registry on June 5, 2006.

Q: What is Tom Nguyen'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 Tom Nguyen was last updated on June 21, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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 June 05, 2006PECOS EnrolledAccepts Medicare Assignment

1220 ROSSMOOR PKWY, WALNUT CREEK, CA 94595(925) 947-3393(925) 947-3396 Get Directions Write a Review

NPPES record last updated: June 21, 2012. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. Tom T Nguyen M.d. NPPES

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

DR. TOM T NGUYEN M.D. (NPI 1144269382) is an individual hospitalist provider in Walnut Creek, California, licensed in California (A87794) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Evergreenhealth Medical Center, and is a graduate of Vanderbilt University School Of Medicine (1997).

NPPES Registry Identity

NPI1144269382

Entity TypeIndividualMale

Primary Taxonomy208M00000X

Provider Legal NameDR. TOM T NGUYENCredential: M.D.

Location Address1220 ROSSMOOR PKWYWalnut Creek, CA 94595-2501

Mailing AddressDept 34929, P.o. 39000San Francisco, CA 94139-0001 · (925) 952-2828 · Fax (925) 952-2850

Phone(925) 947-3393

Fax(925) 947-3396

Sole ProprietorNo

Medical School CMSVanderbilt University School Of MedicineGraduated 1997

Enumeration DateJune 5, 2006

Last NPPES UpdateJune 21, 2012

✔ NPI 1144269382 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 · A87794

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 A87794 (CA)

1220 ROSSMOOR PKWY, Walnut Creek, CA 94595

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Other Identifiers 4

Medicare UPINH15285CA

Medicaid00A877940CA

Medicare PIN00A877943CA

Medicare PINP00396990CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Tom T Nguyen M.d. 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 ID5193791895

PECOS Enrollment IDI20050115000166

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.

Areas of Expertise CMS Part B claims 4

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 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.

241 services89 patients

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.

206 services95 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.

83 services83 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.

24 services24 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Evergreenhealth Medical Center

Acute Care Hospitals · Kirkland, WA

5/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number500124

Location12040 NE 128th StreetKirkland, WA 98034 · King County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94595 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

$153.83 typical visit price

range $69.00 – $202.35

Typical copayment $38.45 (range $17.25 – $50.58)

Most-billed visit code 99204

Established Patient

$119.48 typical visit price

range $23.44 – $166.46

Typical copayment $29.87 (range $5.86 – $41.61)

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.

Referred Medical Equipment & Supplies CMS DME claims

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

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

2 suppliers13 claims13 services$3.39 avg. paid by Medicare

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

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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. ALI-REZA BARMAKI M.D.

Internal Medicine