Nancy Keeler, NP
NPI 1427100320 · Physician Assistant · Atwater, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nancy Keeler, NP is a Physician Assistant provider in Atwater, CA (NPI 1427100320).
Provider details
- NPI number
- 1427100320
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- NP4024 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
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
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- 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 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 129 | 45 |
| Atorvastatin Calcium | 129 | 46 |
| Metoprolol Succinate | 96 | 38 |
| Losartan Potassium | 65 | 22 |
| Montelukast Sodium | 56 | 19 |
| Semaglutidebrand: Ozempic | 52 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$173 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
Additional practice locations (1)
- 3605 Hospital RdAtwater, CA 95301-5173Phone: (209) 383-5500Fax: (209) 383-6910
Registry dates
- Enumerated
- 2007-01-18
- Last updated
- 2020-12-11
- Certified
- 2020-12-11
Frequently asked questions
- What is Nancy Keeler's NPI number?
- Nancy Keeler's National Provider Identifier (NPI) is 1427100320, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Keeler's specialty?
- Nancy Keeler is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nancy Keeler located?
- Nancy Keeler's practice location on file with NPPES is 1675 Shaffer Rd, Atwater, CA 95301-4456.
- What is Nancy Keeler's phone number?
- The practice phone number listed in the NPPES registry for Nancy Keeler is (209) 383-5500.
- Does Nancy Keeler accept Medicare?
- Nancy Keeler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nancy Keeler's NPI active?
- Yes — Nancy Keeler's NPI (1427100320) is active in the NPPES registry as of the last update on 2020-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.