Stephen Hallisey
NPI 1295120251 · Emergency Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Hallisey is a Emergency Medicine Physician provider in Boston, MA (NPI 1295120251).
Provider details
- NPI number
- 1295120251
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 278273 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
486 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 254 | $218 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 122 | $179 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 62 | $123 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 24 | $181 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 24 | $124 |
Typical Medicare-allowed amounts for these services range $123–$218 (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 (1)
- 55 Fruit StBoston, MA 02114-2621Phone: (617) 726-3030
Registry dates
- Enumerated
- 2015-04-06
- Last updated
- 2026-03-02
- Certified
- 2026-03-02
Frequently asked questions
- What is Stephen Hallisey's NPI number?
- Stephen Hallisey's National Provider Identifier (NPI) is 1295120251, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Hallisey's specialty?
- Stephen Hallisey is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Hallisey located?
- Stephen Hallisey's practice location on file with NPPES is 75 Francis St, Boston, MA 02115-6106.
- What is Stephen Hallisey's phone number?
- The practice phone number listed in the NPPES registry for Stephen Hallisey is (617) 732-5500.
- Does Stephen Hallisey accept Medicare?
- Stephen Hallisey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Hallisey's NPI active?
- Yes — Stephen Hallisey's NPI (1295120251) is active in the NPPES registry as of the last update on 2026-03-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.