Mary Koger, NPF
NPI 1134314180 · Obstetrics & Gynecology Nurse Practitioner · Walnut Creek, CA
Mary Koger, NPF is a Obstetrics & Gynecology Nurse Practitioner provider in Walnut Creek, CA (NPI 1134314180).
Provider details
- NPI number
- 1134314180
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NPF
- Sex
- Female
- Sole proprietor
- No
- License
- 8919 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 96 | 55 |
| Progesterone, Micronizedbrand: Progesterone | 58 | 22 |
| Valacyclovir Hclbrand: Valacyclovir | 52 | 25 |
| Estradiolbrand: Estring | 38 | 15 |
| Estradiolbrand: Imvexxy | 23 | — |
| Estradiolbrand: Estradiol (twice Weekly) | 19 | — |
| Estradiolbrand: Dotti | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$147 across 7 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
- 2007-09-12
- Last updated
- 2025-03-04
- Certified
- 2025-03-04
Frequently asked questions
- What is Mary Koger's NPI number?
- Mary Koger's National Provider Identifier (NPI) is 1134314180, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Koger's specialty?
- Mary Koger is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Koger located?
- Mary Koger's practice location on file with NPPES is 2637 Shadelands Dr, Walnut Creek, CA 94598-2512.
- What is Mary Koger's phone number?
- The practice phone number listed in the NPPES registry for Mary Koger is (925) 945-6600.
- Is Mary Koger's NPI active?
- Yes — Mary Koger's NPI (1134314180) is active in the NPPES registry as of the last update on 2025-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.