Dorothy Sassi, NP
NPI 1356389043 · Nurse Practitioner · Springfield, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dorothy Sassi, NP is a Nurse Practitioner provider in Springfield, MA (NPI 1356389043).
Provider details
- NPI number
- 1356389043
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 206906 (MA)
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
20 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
691 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 | 527 | $78 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 83 | $108 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 35 | $96 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 30 | $49 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 16 | $143 |
Typical Medicare-allowed amounts for these services range $49–$143 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 674 | 231 |
| Pantoprazole Sodium | 322 | 114 |
| Dicyclomine Hcl | 177 | 70 |
| Famotidine | 165 | 51 |
| Linaclotidebrand: Linzess | 137 | 33 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 126 | 125 |
| Mesalamine | 66 | 25 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$535 across 25 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
- 2006-06-03
- Last updated
- 2010-03-03
Frequently asked questions
- What is Dorothy Sassi's NPI number?
- Dorothy Sassi's National Provider Identifier (NPI) is 1356389043, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dorothy Sassi's specialty?
- Dorothy Sassi is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Dorothy Sassi located?
- Dorothy Sassi's practice location on file with NPPES is 299 Carew St, Springfield, MA 01104-2301.
- What is Dorothy Sassi's phone number?
- The practice phone number listed in the NPPES registry for Dorothy Sassi is (413) 737-7951.
- Does Dorothy Sassi accept Medicare?
- Dorothy Sassi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dorothy Sassi's NPI active?
- Yes — Dorothy Sassi's NPI (1356389043) is active in the NPPES registry as of the last update on 2010-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.