Nathaniel Yuan, DO
NPI 1659875201 · Sleep Medicine (Internal Medicine) Physician · Ventura, CA
Enrolled with Medicare as Practitioner - Sleep Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathaniel Yuan, DO is a Sleep Medicine (Internal Medicine) Physician provider in Ventura, CA (NPI 1659875201).
Provider details
- NPI number
- 1659875201
- Entity type
- Individual
- Primary specialty
- Sleep Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 20A17976 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,351 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 398 | $97 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 238 | $175 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 155 | $60 |
| Sleep Study Including Heart Rate, Breathing, Airflow, and Effort95806 | 143 | $45 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 112 | $17 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 93 | 29 |
| Trazodone Hcl | 92 | 43 |
| Zolpidem Tartrate | 62 | 13 |
| Clonazepam | 30 | — |
| Doxepin Hcl | 19 | 11 |
| Zolpidem Tartratebrand: Zolpidem Tartrate Er | 15 | — |
| Lorazepam | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-03-20
- Last updated
- 2022-06-28
- Certified
- 2022-06-28
Frequently asked questions
- What is Nathaniel Yuan's NPI number?
- Nathaniel Yuan's National Provider Identifier (NPI) is 1659875201, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathaniel Yuan's specialty?
- Nathaniel Yuan is listed in the NPPES registry with a primary specialty of Sleep Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Nathaniel Yuan located?
- Nathaniel Yuan's practice location on file with NPPES is 6633 Telephone Rd Ste 100, Ventura, CA 93003-5569.
- What is Nathaniel Yuan's phone number?
- The practice phone number listed in the NPPES registry for Nathaniel Yuan is (805) 644-9121.
- Does Nathaniel Yuan accept Medicare?
- Nathaniel Yuan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathaniel Yuan's NPI active?
- Yes — Nathaniel Yuan's NPI (1659875201) is active in the NPPES registry as of the last update on 2022-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.