Mary Susan Howlett, FNP
NPI 1730423351 · Nurse Practitioner · Lawrence, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Susan Howlett, FNP is a Nurse Practitioner provider in Lawrence, MA (NPI 1730423351).
Provider details
- NPI number
- 1730423351
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- RN167850 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 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
- 2012-11-20
- Last updated
- 2012-11-20
Frequently asked questions
- What is Mary Susan Howlett's NPI number?
- Mary Susan Howlett's National Provider Identifier (NPI) is 1730423351, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Susan Howlett's specialty?
- Mary Susan Howlett is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Susan Howlett located?
- Mary Susan Howlett's practice location on file with NPPES is 500 Merrimack St, Lawrence, MA 01843-1756.
- What is Mary Susan Howlett's phone number?
- The practice phone number listed in the NPPES registry for Mary Susan Howlett is (978) 557-8800.
- Does Mary Susan Howlett accept Medicare?
- Mary Susan Howlett is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Susan Howlett's NPI active?
- Yes — Mary Susan Howlett's NPI (1730423351) is active in the NPPES registry as of the last update on 2012-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.