Merrimack Valley Emergency Associates, Inc.
NPI 1821280959 · Emergency Medicine Physician · Lowell, MA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Merrimack Valley Emergency Associates, Inc. is a Emergency Medicine Physician organization in Lowell, MA (NPI 1821280959).
Provider details
- NPI number
- 1821280959
- Entity type
- Organization
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Nathan Macdonald, President(978) 937-6101
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-08-13
- Last updated
- 2012-10-15
Frequently asked questions
- What is Merrimack Valley Emergency Associates, Inc.'s NPI number?
- Merrimack Valley Emergency Associates, Inc.'s National Provider Identifier (NPI) is 1821280959, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Merrimack Valley Emergency Associates, Inc.?
- Merrimack Valley Emergency Associates, Inc. is classified in the NPPES registry as Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Merrimack Valley Emergency Associates, Inc. located?
- Merrimack Valley Emergency Associates, Inc.'s practice location on file with NPPES is 295 Varnum Ave, Lowell, MA 01854-2134.
- What is Merrimack Valley Emergency Associates, Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Merrimack Valley Emergency Associates, Inc. is (978) 937-6161.
- Does Merrimack Valley Emergency Associates, Inc. accept Medicare?
- Merrimack Valley Emergency Associates, Inc. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Merrimack Valley Emergency Associates, Inc.?
- The authorized official listed on Merrimack Valley Emergency Associates, Inc.'s NPPES record is Nathan Macdonald, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Merrimack Valley Emergency Associates, Inc.'s NPI active?
- Yes — Merrimack Valley Emergency Associates, Inc.'s NPI (1821280959) is active in the NPPES registry as of the last update on 2012-10-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.