Katherine Welter, PA-C
NPI 1588118277 · Physician Assistant · Libertyville, IL
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Welter, PA-C is a Physician Assistant provider in Libertyville, IL (NPI 1588118277).
Provider details
- NPI number
- 1588118277
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 3846-23 (WI)
Specialties & taxonomies
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 tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
177 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 86 | $111 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 51 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 26 | $80 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 14 | $147 |
Typical Medicare-allowed amounts for these services range $9–$147 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 55 | 28 |
| Amlodipine Besylate | 41 | 19 |
| Pantoprazole Sodium | 30 | 16 |
| Losartan Potassium | 29 | 13 |
| Omeprazole | 28 | 19 |
| Metoprolol Succinate | 27 | 13 |
| Gabapentin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$30 across 1 record (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)
- 2025 W Oklahoma Ave Ste 100Milwaukee, WI 53215-4455Phone: (414) 389-2790
Registry dates
- Enumerated
- 2016-08-10
- Last updated
- 2023-05-19
- Certified
- 2023-05-19
Frequently asked questions
- What is Katherine Welter's NPI number?
- Katherine Welter's National Provider Identifier (NPI) is 1588118277, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Welter's specialty?
- Katherine Welter is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine Welter located?
- Katherine Welter's practice location on file with NPPES is 825 S Milwaukee Ave, Libertyville, IL 60048-3218.
- What is Katherine Welter's phone number?
- The practice phone number listed in the NPPES registry for Katherine Welter is (847) 566-5200.
- Does Katherine Welter accept Medicare?
- Katherine Welter is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Welter's NPI active?
- Yes — Katherine Welter's NPI (1588118277) is active in the NPPES registry as of the last update on 2023-05-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.