Stephanie Chen, N.P., M.S.N.
NPI 1578729398 · General Acute Care Hospital · Los Angeles, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephanie Chen, N.P., M.S.N. is a General Acute Care Hospital provider in Los Angeles, CA (NPI 1578729398).
Provider details
- NPI number
- 1578729398
- Entity type
- Individual
- Primary specialty
- General Acute Care HospitalHospitals
- Credential
- N.P., M.S.N.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 18484 (CA)
Specialties & taxonomies
Hospitals
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
17 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 99 | 91 |
| Doxycycline Hyclate | 58 | 48 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 37 | 26 |
| Diclofenac Sodium | 20 | 17 |
| Tramadol Hcl | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$383 across 9 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
- 2008-07-31
- Last updated
- 2009-04-28
Frequently asked questions
- What is Stephanie Chen's NPI number?
- Stephanie Chen's National Provider Identifier (NPI) is 1578729398, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephanie Chen's specialty?
- Stephanie Chen is listed in the NPPES registry with a primary specialty of General Acute Care Hospital (Hospitals).
- Where is Stephanie Chen located?
- Stephanie Chen's practice location on file with NPPES is 444 S San Vicente Blvd, Los Angeles, CA 90048-4165.
- What is Stephanie Chen's phone number?
- The practice phone number listed in the NPPES registry for Stephanie Chen is (626) 780-1377.
- Does Stephanie Chen accept Medicare?
- Stephanie Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephanie Chen's NPI active?
- Yes — Stephanie Chen's NPI (1578729398) is active in the NPPES registry as of the last update on 2009-04-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.