Josephine Chen, FNP, RN
NPI 1790175214 · Family Nurse Practitioner · Concord, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Josephine Chen, FNP, RN is a Family Nurse Practitioner provider in Concord, CA (NPI 1790175214).
Provider details
- NPI number
- 1790175214
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP, RN
- Sex
- Female
- Sole proprietor
- Yes
- License
- 836079 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 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
664 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 | 282 | $129 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 194 | $88 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 59 | $133 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 28 | $15 |
| Administration of Influenza Virus VaccineG0008 | 24 | $39 |
| Urinalysis, Manual Test81002 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 58 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 155 | 55 |
| Atorvastatin Calcium | 139 | 54 |
| Losartan Potassium | 77 | 32 |
| Metformin Hcl | 63 | 22 |
| Levothyroxine Sodium | 62 | 21 |
| Tamsulosin Hcl | 52 | 16 |
| Metoprolol Tartrate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$337 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
- 2015-02-04
- Last updated
- 2022-04-07
- Certified
- 2022-04-07
Frequently asked questions
- What is Josephine Chen's NPI number?
- Josephine Chen's National Provider Identifier (NPI) is 1790175214, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Josephine Chen's specialty?
- Josephine Chen is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Josephine Chen located?
- Josephine Chen's practice location on file with NPPES is 3052 Willow Pass Rd, Concord, CA 94519-2552.
- What is Josephine Chen's phone number?
- The practice phone number listed in the NPPES registry for Josephine Chen is (256) 814-1009.
- Does Josephine Chen accept Medicare?
- Josephine Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Josephine Chen's NPI active?
- Yes — Josephine Chen's NPI (1790175214) is active in the NPPES registry as of the last update on 2022-04-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.