Clark Cassone, MSN, FNP-BC
NPI 1720335615 · Nurse Practitioner · Boston, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clark Cassone, MSN, FNP-BC is a Nurse Practitioner provider in Boston, MA (NPI 1720335615).
Provider details
- NPI number
- 1720335615
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN, FNP-BC
- Sex
- Male
- Sole proprietor
- No
- License
- RN2269715 (MA)
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 tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
92 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 40 | $70 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 23 | $105 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 15 | $154 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 14 | $116 |
Typical Medicare-allowed amounts for these services range $70–$154 (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.
Practice location
Mailing address
Additional practice locations (2)
- 450 Brookline AveBoston, MA 02215Phone: (617) 632-6464Fax: (617) 632-6180
- 1100 9th AveMs:h15-1550Seattle, WA 98101-2756Phone: (206) 341-0708Fax: (206) 341-0625
Registry dates
- Enumerated
- 2012-08-09
- Last updated
- 2024-01-03
- Certified
- 2024-01-03
Frequently asked questions
- What is Clark Cassone's NPI number?
- Clark Cassone's National Provider Identifier (NPI) is 1720335615, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clark Cassone's specialty?
- Clark Cassone is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Clark Cassone located?
- Clark Cassone's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2696.
- What is Clark Cassone's phone number?
- The practice phone number listed in the NPPES registry for Clark Cassone is (617) 724-9197.
- Does Clark Cassone accept Medicare?
- Clark Cassone is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clark Cassone's NPI active?
- Yes — Clark Cassone's NPI (1720335615) is active in the NPPES registry as of the last update on 2024-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.