Cassidy Grieco
NPI 1306428941 · Physician Assistant · Boston, MA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cassidy Grieco is a Physician Assistant provider in Boston, MA (NPI 1306428941).
Provider details
- NPI number
- 1306428941
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
5 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
884 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 110 | $9 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 89 | $110 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 75 | $90 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 70 | $74 |
| Hemoglobin A1c Level83036 | 54 | $10 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 50 |
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 |
|---|---|---|
| Atorvastatin Calcium | 55 | 24 |
| Amlodipine Besylate | 38 | 16 |
| Losartan Potassium | 28 | — |
| Metoprolol Succinate | 24 | — |
| Fluticasone Propionate | 23 | 12 |
| Omeprazole | 20 | 11 |
| Semaglutidebrand: Ozempic |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-04-23
- Last updated
- 2025-11-20
- Certified
- 2025-11-20
Frequently asked questions
- What is Cassidy Grieco's NPI number?
- Cassidy Grieco's National Provider Identifier (NPI) is 1306428941, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassidy Grieco's specialty?
- Cassidy Grieco is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Cassidy Grieco located?
- Cassidy Grieco's practice location on file with NPPES is 133 Brookline Ave, Boston, MA 02215-3904.
- What is Cassidy Grieco's phone number?
- The practice phone number listed in the NPPES registry for Cassidy Grieco is (617) 421-1000.
- Does Cassidy Grieco accept Medicare?
- Cassidy Grieco is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cassidy Grieco's NPI active?
- Yes — Cassidy Grieco's NPI (1306428941) is active in the NPPES registry as of the last update on 2025-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.