Katharine Sapienza, PA-C
NPI 1326757568 · Physician Assistant · Riverhead, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katharine Sapienza, PA-C is a Physician Assistant provider in Riverhead, NY (NPI 1326757568).
Provider details
- NPI number
- 1326757568
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
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
3 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
285 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 | 116 | $88 |
| Cervical Or Vaginal Cancer Screening; Pelvic and Clinical Breast ExaminationG0101 | 63 | $39 |
| Urinalysis, Manual Test81002 | 43 | $3 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 37 | $14 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 26 | $109 |
Typical Medicare-allowed amounts for these services range $3–$109 (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 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 107 | 61 |
| Clotrimazole/Betamethasone Dipbrand: Clotrimazole-Betamethasone | 52 | 47 |
| Fluconazole | 42 | 34 |
| Valacyclovir Hclbrand: Valacyclovir | 42 | 25 |
| Estradiolbrand: Yuvafem | 31 | 18 |
| Progesterone, Micronizedbrand: Progesterone | 24 | 11 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$528 across 17 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 (3)
- 600 Montauk Hwy Ste CCenter Moriches, NY 11934-2235Phone: (631) 638-7820
- 183 W Montauk HwyHampton Bays, NY 11946-2305Phone: (631) 723-2299
- 595 Hampton RdSouthampton, NY 11968-3004Phone: (631) 283-0918
Registry dates
- Enumerated
- 2022-11-16
- Last updated
- 2022-12-11
- Certified
- 2022-12-11
Frequently asked questions
- What is Katharine Sapienza's NPI number?
- Katharine Sapienza's National Provider Identifier (NPI) is 1326757568, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katharine Sapienza's specialty?
- Katharine Sapienza is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katharine Sapienza located?
- Katharine Sapienza's practice location on file with NPPES is 74 Commerce Dr., Riverhead, NY 11901.
- What is Katharine Sapienza's phone number?
- The practice phone number listed in the NPPES registry for Katharine Sapienza is (631) 727-3422.
- Does Katharine Sapienza accept Medicare?
- Katharine Sapienza is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katharine Sapienza's NPI active?
- Yes — Katharine Sapienza's NPI (1326757568) is active in the NPPES registry as of the last update on 2022-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.