Katherine Sumner, R-PAC
NPI 1033500988 · Physician Assistant · Williamsville, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Sumner, R-PAC is a Physician Assistant provider in Williamsville, NY (NPI 1033500988).
Provider details
- NPI number
- 1033500988
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- R-PAC
- Sex
- Female
- Sole proprietor
- No
- License
- 018399 (NY)
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 tenure25% of score
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
457 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 | 194 | $103 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 103 | $5 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 68 | $105 |
| Hemoglobin A1c Level83036 | 44 | $10 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 31 | $12 |
| Administration of Influenza Virus VaccineG0008 | 17 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 140 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 611 | 216 |
| Amlodipine Besylate | 451 | 171 |
| Atorvastatin Calcium | 407 | 178 |
| Metoprolol Succinate | 307 | 109 |
| Levothyroxine Sodium | 276 | 115 |
| Pantoprazole Sodium | 247 | 89 |
| Gabapentin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$166 across 5 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
- 2015-02-13
- Last updated
- 2015-02-13
Frequently asked questions
- What is Katherine Sumner's NPI number?
- Katherine Sumner's National Provider Identifier (NPI) is 1033500988, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Sumner's specialty?
- Katherine Sumner is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine Sumner located?
- Katherine Sumner's practice location on file with NPPES is 18 Limestone Dr, Williamsville, NY 14221-8602.
- What is Katherine Sumner's phone number?
- The practice phone number listed in the NPPES registry for Katherine Sumner is (716) 632-1400.
- Does Katherine Sumner accept Medicare?
- Katherine Sumner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Sumner's NPI active?
- Yes — Katherine Sumner's NPI (1033500988) is active in the NPPES registry as of the last update on 2015-02-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.