Mark Dematteo, MD
NPI 1922044015 · Emergency Medicine Physician · Braintree, MA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Dematteo, MD is a Emergency Medicine Physician provider in Braintree, MA (NPI 1922044015).
Provider details
- NPI number
- 1922044015
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 150129 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,135 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 253 | $99 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 163 | $138 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 102 | $171 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 74 | $16 |
| Urinalysis, Manual Test81002 | 64 | $3 |
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus87426 | 58 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 63 | 63 |
| Cefdinir | 49 | 49 |
| Doxycycline Monohydrate | 38 | 38 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 26 | 26 |
| Cephalexin | 20 | 20 |
| Oxycodone Hcl | 19 | 19 |
| Triamcinolone Acetonide | 17 | 16 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-20
- Last updated
- 2021-01-07
- Certified
- 2021-01-07
Frequently asked questions
- What is Mark Dematteo's NPI number?
- Mark Dematteo's National Provider Identifier (NPI) is 1922044015, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Dematteo's specialty?
- Mark Dematteo is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Dematteo located?
- Mark Dematteo's practice location on file with NPPES is 111 Grossman Dr, Braintree, MA 02184-4997.
- What is Mark Dematteo's phone number?
- The practice phone number listed in the NPPES registry for Mark Dematteo is (781) 849-1000.
- Does Mark Dematteo accept Medicare?
- Mark Dematteo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Dematteo's NPI active?
- Yes — Mark Dematteo's NPI (1922044015) is active in the NPPES registry as of the last update on 2021-01-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.