Merrimack Medical & Walk in Center, LLC
NPI 1124337175 · Family Medicine Physician · Lawrence, MA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Merrimack Medical & Walk in Center, LLC is a Family Medicine Physician organization in Lawrence, MA (NPI 1124337175).
Provider details
- NPI number
- 1124337175
- Entity type
- Organization
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- David Farzan, Partner(978) 688-3100
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Urgent Care Clinic/Center261QU0200X
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
Other names (DBA / former)
- Other name
- Mmwic
Registry dates
- Enumerated
- 2010-09-24
- Last updated
- 2011-01-31
Frequently asked questions
- What is Merrimack Medical & Walk in Center, LLC's NPI number?
- Merrimack Medical & Walk in Center, LLC's National Provider Identifier (NPI) is 1124337175, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Merrimack Medical & Walk in Center, LLC?
- Merrimack Medical & Walk in Center, LLC is classified in the NPPES registry as Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Merrimack Medical & Walk in Center, LLC located?
- Merrimack Medical & Walk in Center, LLC's practice location on file with NPPES is 25 Marston St, Lawrence, MA 01841-2310.
- What is Merrimack Medical & Walk in Center, LLC's phone number?
- The practice phone number listed in the NPPES registry for Merrimack Medical & Walk in Center, LLC is (978) 688-3100.
- Does Merrimack Medical & Walk in Center, LLC accept Medicare?
- Merrimack Medical & Walk in Center, LLC 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 Medical & Walk in Center, LLC?
- The authorized official listed on Merrimack Medical & Walk in Center, LLC's NPPES record is David Farzan, Partner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Merrimack Medical & Walk in Center, LLC's NPI active?
- Yes — Merrimack Medical & Walk in Center, LLC's NPI (1124337175) is active in the NPPES registry as of the last update on 2011-01-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.