Johnathan Nguyen
NPI 1689020083 · Family Medicine Physician · Santa Rosa, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Johnathan Nguyen is a Family Medicine Physician provider in Santa Rosa, CA (NPI 1689020083).
Provider details
- NPI number
- 1689020083
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 1169412 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
6 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
615 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 205 | $153 |
| 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 | 200 | $19 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 52 | $214 |
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance20611 | 41 | $128 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 33 | $107 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 116 | 42 |
| Amlodipine Besylate | 57 | 24 |
| Gabapentin | 38 | 16 |
| Trazodone Hcl | 34 | — |
| Lisinopril | 34 | 15 |
| Losartan Potassium | 31 | 12 |
| Tamsulosin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$224 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (5)
- 6801 Park Ter Ste 400Los Angeles, CA 90045-9212Phone: (323) 307-8193
- 131 Stony Cir Ste 1600Santa Rosa, CA 95401-9520Phone: (707) 541-7700Fax: (707) 573-5415
- 2455 Summerfield RdSanta Rosa, CA 95405-7815Phone: (707) 308-2815Fax: (707) 573-5439
- 4700 Hoen AveSanta Rosa, CA 95405-7824Phone: (707) 526-3360Fax: (707) 573-5406
- 14023 Southwest FwySugar Land, TX 77478-3550Phone: (281) 325-4100Fax: (281) 325-4292
Registry dates
- Enumerated
- 2016-05-04
- Last updated
- 2022-08-23
- Certified
- 2022-08-23
Frequently asked questions
- What is Johnathan Nguyen's NPI number?
- Johnathan Nguyen's National Provider Identifier (NPI) is 1689020083, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Johnathan Nguyen's specialty?
- Johnathan Nguyen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Johnathan Nguyen located?
- Johnathan Nguyen's practice location on file with NPPES is 3883 Airway Dr Ste 202, Santa Rosa, CA 95403-1671.
- What is Johnathan Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Johnathan Nguyen is (707) 526-3360.
- Does Johnathan Nguyen accept Medicare?
- Johnathan Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Johnathan Nguyen's NPI active?
- Yes — Johnathan Nguyen's NPI (1689020083) is active in the NPPES registry as of the last update on 2022-08-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.