Katy Ludwig, NP
NPI 1871146704 · Family Medicine Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katy Ludwig, NP is a Family Medicine Physician provider in Phoenix, AZ (NPI 1871146704).
Provider details
- NPI number
- 1871146704
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- RNP229658 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
6 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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Alprazolam | 22 | — |
| Levothyroxine Sodium | 17 | 11 |
| Metformin Hcl | 17 | — |
| Losartan Potassium | 16 | — |
| Trazodone Hcl | 16 | — |
| Escitalopram Oxalate | 14 | — |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$144 across 9 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
- 2019-07-19
- Last updated
- 2022-09-15
- Certified
- 2022-09-15
Frequently asked questions
- What is Katy Ludwig's NPI number?
- Katy Ludwig's National Provider Identifier (NPI) is 1871146704, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katy Ludwig's specialty?
- Katy Ludwig is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katy Ludwig located?
- Katy Ludwig's practice location on file with NPPES is 12010 S Warner Elliot Loop, Phoenix, AZ 85044-2731.
- What is Katy Ludwig's phone number?
- The practice phone number listed in the NPPES registry for Katy Ludwig is (480) 524-1821.
- Does Katy Ludwig accept Medicare?
- Katy Ludwig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katy Ludwig's NPI active?
- Yes — Katy Ludwig's NPI (1871146704) is active in the NPPES registry as of the last update on 2022-09-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.