John L. Niles MD, PLLC
NPI 1144656364 · Medical Specialty Clinic/Center · Boston, MA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John L. Niles MD, PLLC is a Medical Specialty Clinic/Center organization in Boston, MA (NPI 1144656364).
Provider details
- NPI number
- 1144656364
- Entity type
- Organization
- Primary specialty
- Medical Specialty Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- John Niles, Owner(617) 726-4132
- License
- 54243 (MA)
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 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
- 2013-09-19
- Last updated
- 2015-02-04
Frequently asked questions
- What is John L. Niles MD, PLLC's NPI number?
- John L. Niles MD, PLLC's National Provider Identifier (NPI) is 1144656364, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is John L. Niles MD, PLLC?
- John L. Niles MD, PLLC is classified in the NPPES registry as Medical Specialty Clinic/Center (Ambulatory Health Care Facilities).
- Where is John L. Niles MD, PLLC located?
- John L. Niles MD, PLLC's practice location on file with NPPES is 101 Merrimac St, Boston, MA 02114-4724.
- What is John L. Niles MD, PLLC's phone number?
- The practice phone number listed in the NPPES registry for John L. Niles MD, PLLC is (617) 726-4132.
- Does John L. Niles MD, PLLC accept Medicare?
- John L. Niles MD, PLLC 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 John L. Niles MD, PLLC?
- The authorized official listed on John L. Niles MD, PLLC's NPPES record is John Niles, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is John L. Niles MD, PLLC's NPI active?
- Yes — John L. Niles MD, PLLC's NPI (1144656364) is active in the NPPES registry as of the last update on 2015-02-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.