Mark Rollins, D.O.
NPI 1871973818 · Emergency Medicine Physician · New Haven, CT
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Rollins, D.O. is a Emergency Medicine Physician provider in New Haven, CT (NPI 1871973818).
Provider details
- NPI number
- 1871973818
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
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
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
356 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 202 | $179 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 83 | $123 |
| Critical Care, First 30-74 Minutes99291 | 31 | $217 |
| Ultrasound of Heart, Follow-Up93308 | 27 | $25 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 13 | $177 |
Typical Medicare-allowed amounts for these services range $25–$217 (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)
- 4422 3rd AveBronx, NY 10457-2545Phone: (781) 367-9547
Registry dates
- Enumerated
- 2015-06-04
- Last updated
- 2019-02-21
Frequently asked questions
- What is Mark Rollins's NPI number?
- Mark Rollins's National Provider Identifier (NPI) is 1871973818, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Rollins's specialty?
- Mark Rollins is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Rollins located?
- Mark Rollins's practice location on file with NPPES is 333 Cedar St, New Haven, CT 06510-3206.
- What is Mark Rollins's phone number?
- The practice phone number listed in the NPPES registry for Mark Rollins is (203) 785-4580.
- Does Mark Rollins accept Medicare?
- Mark Rollins is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Rollins's NPI active?
- Yes — Mark Rollins's NPI (1871973818) is active in the NPPES registry as of the last update on 2019-02-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.