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NATHANIEL YUAN DO
NPI 1659875201
Internal Medicine - Sleep Medicine in Ventura, CA

Active since March 20, 2018PECOS EnrolledAccepts Medicare Assignment
86.1/100
CMS Quality Rating
6633 TELEPHONE RD STE 100, VENTURA, CA 93003(805) 644-9121(805) 644-9131 Get Directions Write a Review

NPPES record last updated: June 28, 2022. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Dec 8, 2021, Mar 20, 2018 (2 updates tracked since 2018).

About Nathaniel Yuan Do NPPES

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

NATHANIEL YUAN DO (NPI 1659875201) is an individual sleep medicine provider in Ventura, California, licensed in California (20A17976) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS and is a graduate of Other (2018).

NPPES Registry Identity

NPI1659875201
Entity TypeIndividualMale
Primary Taxonomy207RS0012X
Provider Legal NameNATHANIEL YUANCredential: DO
Location Address6633 TELEPHONE RD STE 100Ventura, CA 93003-5569
Mailing Address5767 W Century Blvd Suite 400Los Angeles, CA 90095-5631 · (310) 301-8707 · Fax (310) 301-8751
Phone(805) 644-9121
Fax(805) 644-9131
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateMarch 20, 2018
Last NPPES UpdateJune 28, 20222 updates tracked since enumeration
NPPES CertifiedJune 28, 2022
✔ NPI 1659875201 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Sleep MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RS0012X
License✔ Licensed in CA · 20A17976
Definition
An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.
6633 TELEPHONE RD STE 100, Ventura, CA 93003
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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

Nathaniel Yuan Do 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 ID8224467907
PECOS Enrollment IDI20201125000401
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 11

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.

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.
398 services305 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
238 services238 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.
155 services119 patients
Sleep study including heart rate, breathing, airflow, and effort 95806
A sleep study monitors your heart rate, breathing patterns, airflow, and physical effort while you sleep. It helps identify sleep disorders by tracking your sleep stages and cycles. This data aids doctors in diagnosing and treating sleep-related issues.
143 services137 patients
Sleep study including heart rate and breathing 95801
A sleep study monitors your sleep to diagnose issues like sleep apnea. It tracks heart rate, breathing, and other functions to understand your sleep patterns. This non-invasive test is conducted overnight in a sleep lab or at home.
89 services81 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
84 services84 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93003 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
$140.72 typical visit price
range $62.32 – $185.36
Typical copayment $35.18 (range $15.58 – $46.34)
Most-billed visit code 99204
Established Patient
$108.74 typical visit price
range $20.68 – $151.85
Typical copayment $27.18 (range $5.17 – $37.96)
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.

86.1/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality82.93
Promoting Interoperability100
Improvement Activities40
Cost66.73

Referred Medical Equipment & Supplies CMS DME claims 6

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

Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
4 suppliers15 claims15 services$45.29 avg. paid by Medicare
Headgear used with positive airway pressure device A7035
DME-Other DME · category DE001N
5 suppliers15 claims16 services$14.92 avg. paid by Medicare
Chinstrap used with positive airway pressure device A7036
DME-Other DME · category DE001N
3 suppliers11 claims11 services$9.54 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
5 suppliers17 claims93 services$1.75 avg. paid by Medicare
Humidifier, heated, used with positive airway pressure device E0562
DME-Other DME · category DE001N
4 suppliers16 claims16 services$111.96 avg. paid by Medicare
Continuous positive airway pressure (cpap) device E0601
DME-Other DME · category DE001N
4 suppliers39 claims39 services$31.59 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 3

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

LARISSA NADIA LARSEN M.D.
Dermatology
6633 TELEPHONE RD STE 100
VENTURA, CA 93003
Ventura County (310) 644-9121
JAMES AHERN MD
Family Medicine
6633 TELEPHONE RD STE 100
VENTURA, CA 93003
Ventura County (805) 644-9121
DR. TRAVIS PATRICK WELSH MD
Internal Medicine (Rheumatology)
6633 TELEPHONE RD STE 100
VENTURA, CA 93003
Ventura County (805) 644-9121

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Nathaniel Yuan's NPI number?

The NPI number for Nathaniel Yuan is 1659875201. It was assigned to this individual provider in the NPPES registry on March 20, 2018.

Where is Nathaniel Yuan located?

Nathaniel Yuan practices at 6633 Telephone Rd Ste 100, Ventura, CA 93003. The listed phone number is (805) 644-9121.

What is Nathaniel Yuan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.

Is Nathaniel Yuan enrolled in Medicare?

Yes. Nathaniel Yuan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Nathaniel Yuan was last updated on June 28, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.