Margaret Barnard, FNP-C
NPI 1578990230 · Family Nurse Practitioner · Temecula, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Barnard, FNP-C is a Family Nurse Practitioner provider in Temecula, CA (NPI 1578990230).
Provider details
- NPI number
- 1578990230
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- NP95005644 (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 tenure33% of score
12 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 · 83 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 472 | 180 |
| Losartan Potassium | 429 | 161 |
| Amlodipine Besylate | 292 | 104 |
| Levothyroxine Sodium | 214 | 78 |
| Metformin Hcl | 163 | 65 |
| Lisinopril | 160 | 64 |
| Semaglutide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$218 across 10 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
- 2013-09-26
- Last updated
- 2020-02-10
- Certified
- 2020-02-10
Frequently asked questions
- What is Margaret Barnard's NPI number?
- Margaret Barnard's National Provider Identifier (NPI) is 1578990230, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Barnard's specialty?
- Margaret Barnard is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Barnard located?
- Margaret Barnard's practice location on file with NPPES is 31720 Temecula Pkwy Ste 203, Temecula, CA 92592-5895.
- What is Margaret Barnard's phone number?
- The practice phone number listed in the NPPES registry for Margaret Barnard is (951) 302-4700.
- Does Margaret Barnard accept Medicare?
- Margaret Barnard is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Barnard's NPI active?
- Yes — Margaret Barnard's NPI (1578990230) is active in the NPPES registry as of the last update on 2020-02-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.