Karen O'Hara, RNP
NPI 1518155076 · Obstetrics & Gynecology Nurse Practitioner · Corona, CA
Karen O'Hara, RNP is a Obstetrics & Gynecology Nurse Practitioner provider in Corona, CA (NPI 1518155076).
Provider details
- NPI number
- 1518155076
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- NP12044 (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
18 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 · 4 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Estradiol | 31 |
| Estradiolbrand: Imvexxy | 30 |
| Estradiolbrand: Estradiol (once Weekly) | 22 |
| Progesterone, Micronizedbrand: Progesterone | 22 |
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 no Part D record, 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.
$127 across 6 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
- 2007-10-10
- Last updated
- 2007-10-10
Frequently asked questions
- What is Karen O'Hara's NPI number?
- Karen O'Hara's National Provider Identifier (NPI) is 1518155076, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen O'Hara's specialty?
- Karen O'Hara is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen O'Hara located?
- Karen O'Hara's practice location on file with NPPES is 3415 Via Giovanni Cir, Corona, CA 92881-0760.
- What is Karen O'Hara's phone number?
- The practice phone number listed in the NPPES registry for Karen O'Hara is (951) 737-9091.
- Is Karen O'Hara's NPI active?
- Yes — Karen O'Hara's NPI (1518155076) is active in the NPPES registry as of the last update on 2007-10-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.