Katherine Ketz, APRN
NPI 1427524156 · Women's Health Nurse Practitioner · Stockton, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Ketz, APRN is a Women's Health Nurse Practitioner provider in Stockton, CA (NPI 1427524156).
Provider details
- NPI number
- 1427524156
- Entity type
- Individual
- Primary specialty
- Women's Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN
- Sex
- Female
- Sole proprietor
- Yes
- License
- APRN.CNP.022961 (OH)
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
7 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 · 2 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Estradiol | 18 |
| Norethindrone Ac/Eth Estradiolbrand: Norethindron-Ethinyl Estradiol | 14 |
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.
$2,438 across 8 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)
- 1721 E Hammer Ln Ste aStockton, CA 95210-4124Phone: (209) 751-5200
Registry dates
- Enumerated
- 2018-10-20
- Last updated
- 2018-10-20
Frequently asked questions
- What is Katherine Ketz's NPI number?
- Katherine Ketz's National Provider Identifier (NPI) is 1427524156, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Ketz's specialty?
- Katherine Ketz is listed in the NPPES registry with a primary specialty of Women's Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine Ketz located?
- Katherine Ketz's practice location on file with NPPES is 701 E Channel St, Stockton, CA 95202-2628.
- What is Katherine Ketz's phone number?
- The practice phone number listed in the NPPES registry for Katherine Ketz is (209) 944-4700.
- Does Katherine Ketz accept Medicare?
- Katherine Ketz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Ketz's NPI active?
- Yes — Katherine Ketz's NPI (1427524156) is active in the NPPES registry as of the last update on 2018-10-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.