Miranda Nguyen
NPI 1003421975 · Physician Assistant · San Rafael, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Miranda Nguyen is a Physician Assistant provider in San Rafael, CA (NPI 1003421975).
Provider details
- NPI number
- 1003421975
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 60845 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
5 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
394 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 191 | $93 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 190 | $131 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 13 | $15 |
Typical Medicare-allowed amounts for these services range $15–$131 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metformin Hcl | 21 | — |
| Lisinopril | 20 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 19 | 11 |
| Amlodipine Besylate | 19 | — |
| Atorvastatin Calcium | 19 | — |
| Zolpidem Tartrate | 19 | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$317 across 13 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
Registry dates
- Enumerated
- 2020-09-09
- Last updated
- 2024-03-06
- Certified
- 2024-03-06
Frequently asked questions
- What is Miranda Nguyen's NPI number?
- Miranda Nguyen's National Provider Identifier (NPI) is 1003421975, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Miranda Nguyen's specialty?
- Miranda Nguyen is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Miranda Nguyen located?
- Miranda Nguyen's practice location on file with NPPES is 4000 Civic Center Dr, San Rafael, CA 94903-4171.
- What is Miranda Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Miranda Nguyen is (415) 492-3333.
- Does Miranda Nguyen accept Medicare?
- Miranda Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Miranda Nguyen's NPI active?
- Yes — Miranda Nguyen's NPI (1003421975) is active in the NPPES registry as of the last update on 2024-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.