Katherine Shanahan
NPI 1346808383 · Medical Physician Assistant · Williamsville, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Shanahan is a Medical Physician Assistant provider in Williamsville, NY (NPI 1346808383).
Provider details
- NPI number
- 1346808383
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
- Medical Physician Assistant363AM0700X
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
7 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
257 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 135 | $71 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 106 | $102 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 16 | $135 |
Typical Medicare-allowed amounts for these services range $71–$135 (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 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Famotidine | 456 | 137 |
| Omeprazole | 323 | 99 |
| Pantoprazole Sodium | 313 | 97 |
| Dicyclomine Hcl | 137 | 42 |
| Linaclotidebrand: Linzess | 87 | 30 |
| Mesalamine | 74 | 13 |
| Ondansetronbrand: Ondansetron Odt | 65 | 29 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$905 across 61 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
- 2019-06-04
- Last updated
- 2019-06-04
Frequently asked questions
- What is Katherine Shanahan's NPI number?
- Katherine Shanahan's National Provider Identifier (NPI) is 1346808383, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Shanahan's specialty?
- Katherine Shanahan is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine Shanahan located?
- Katherine Shanahan's practice location on file with NPPES is 5225 Sheridan Dr, Williamsville, NY 14221-3573.
- What is Katherine Shanahan's phone number?
- The practice phone number listed in the NPPES registry for Katherine Shanahan is (716) 626-2644.
- Does Katherine Shanahan accept Medicare?
- Katherine Shanahan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Shanahan's NPI active?
- Yes — Katherine Shanahan's NPI (1346808383) is active in the NPPES registry as of the last update on 2019-06-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.