DR. THOMAS TOAN NGUYEN MD
NPI 1336272871
Internal Medicine in San Luis Obispo, CA

Active since March 13, 2007PECOS EnrolledAccepts Medicare Assignment
83.63/100
CMS Quality Rating
892 AEROVISTA PL STE 210, SAN LUIS OBISPO, CA 93401(805) 549-8023 Get Directions Write a Review

NPPES record last updated: May 20, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: May 20, 2025, Mar 31, 2025, Nov 2, 2016 and 1 more (4 updates tracked since 2015).

About Dr. Thomas Toan Nguyen Md NPPES

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

DR. THOMAS TOAN NGUYEN MD (NPI 1336272871) is an individual internal medicine provider in San Luis Obispo, California, licensed in California (A97300) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2003).

NPPES Registry Identity

NPI1336272871
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. THOMAS TOAN NGUYENCredential: MD
Location Address892 AEROVISTA PL STE 210San Luis Obispo, CA 93401-8054
Mailing Address5767 W Century Blvd Suite 400Los Angeles, CA 90095-5631 · (310) 301-8707
Sole ProprietorNo
Medical School CMSOtherGraduated 2003
Enumeration DateMarch 13, 2007
Last NPPES UpdateMay 20, 20254 updates tracked since enumeration
NPPES CertifiedMay 20, 2025
NPI 1336272871 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in CA · A97300
Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

892 AEROVISTA PL STE 210, San Luis Obispo, CA 93401

Secondary Practice Locations 2

Location 1350 S Oak AveOakdale, CA 95361-3519 · Phone (303) 390-1940
Location 2300 Canal StKing City, CA 93930-3431 · Phone (303) 390-1940

Other Identifiers 1

OtherCB241590CA · Medicare Id

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. Thomas Toan Nguyen 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 ID1658468665
PECOS Enrollment IDI20071107000279
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 6

Services this provider delivered to Medicare fee-for-service patients, from the 2024 & 2026 CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
706 services385 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
170 services143 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
135 services135 patients
Telephone medical discussion with physician, 11-20 minutes 99442
This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.
30 services28 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
24 services24 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93401 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
$135.73 typical visit price
range $59.84 – $178.89
Typical copayment $33.93 (range $14.96 – $44.72)
Most-billed visit code 99204
Established Patient
$104.82 typical visit price
range $19.70 – $146.55
Typical copayment $26.20 (range $4.92 – $36.63)
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.

83.63/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality72.79
Promoting Interoperability97
Improvement Activities40
Cost62.56

Referred Medical Equipment & Supplies CMS DME claims 20

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
14 suppliers43 claims86 services$6.08 avg. paid by Medicare
Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
4 suppliers29 claims29 services$34.00 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
4 suppliers13 claims13 services$93.69 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
4 suppliers14 claims38 services$35.48 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
3 suppliers12 claims72 services$19.94 avg. paid by Medicare
Pillow for use on nasal cannula type interface, replacement only, pair A7033
DME-Other DME · category DE001N
1 supplier11 claims61 services$13.05 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

MIPS Quality Measures

The following performance measures were reported under the Merit-Based Incentive Payment System (MIPS) and Qualified Clinical Data Registry (QCDR) quality measures program.

Quality Measure Performance Number of Patients
Appropriate Treatment for Upper Respiratory Infection (URI) 50% 42
Breast Cancer Screening 76% 1090
Cervical Cancer Screening 68% 1486
Colorectal Cancer Screening 76% 2559
Controlling High Blood Pressure 71% 1520
Diabetes: Eye Exam 19% 517
Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%) 21% "Inverse Quality Measure"
This is an inverse quality measure, a lower rate means the provider is rated better.
517
Documentation of Current Medications in the Medical Record 99% 8940
HIV Screening 9% 3077
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan 88% 4207
Preventive Care and Screening: Screening for Depression and Follow-Up Plan 94% 3227
Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented 32% 4891
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention 96% 3738
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention 77% 247
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention 98% 3738
Statin Therapy for the Prevention and Treatment of Cardiovascular Disease 77% 1277

Other Providers at the Same Location NPPES 7

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

Internal Medicine (Rheumatology)
892 AEROVISTA PL STE 210
SAN LUIS OBISPO, CA 93401
Internal Medicine
892 AEROVISTA PL STE 210
SAN LUIS OBISPO, CA 93401
Genetic Counselor, MS
892 AEROVISTA PL STE 210
SAN LUIS OBISPO, CA 93401
Family Medicine
892 AEROVISTA PL STE 210
SAN LUIS OBISPO, CA 93401
Internal Medicine
892 AEROVISTA PL STE 210
SAN LUIS OBISPO, CA 93401
Family Medicine
892 AEROVISTA PL STE 210
SAN LUIS OBISPO, CA 93401
Internal Medicine (Infectious Disease)
892 AEROVISTA PL STE 210
SAN LUIS OBISPO, CA 93401

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1336272871, enumerated as an "individual" on March 13, 2007.

The provider is located at 892 AEROVISTA PL STE 210 SAN LUIS OBISPO, CA 93401 and the phone number is (805) 549-8023.

Internal Medicine with taxonomy code 207R00000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.