Margaret Berreth, CNM
NPI 1275742397 · Advanced Practice Midwife · Lawrenceville, NJ
Enrolled with Medicare as Practitioner - Certified Nurse Midwife (cnm) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Berreth, CNM is a Advanced Practice Midwife provider in Lawrenceville, NJ (NPI 1275742397).
Provider details
- NPI number
- 1275742397
- Entity type
- Individual
- Primary specialty
- Advanced Practice MidwifePhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CNM
- Sex
- Female
- Sole proprietor
- No
- License
- 26NR10179400 (NJ)
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
19 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
- 2007-05-22
- Last updated
- 2021-04-01
- Certified
- 2021-04-01
Frequently asked questions
- What is Margaret Berreth's NPI number?
- Margaret Berreth's National Provider Identifier (NPI) is 1275742397, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Berreth's specialty?
- Margaret Berreth is listed in the NPPES registry with a primary specialty of Advanced Practice Midwife (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Berreth located?
- Margaret Berreth's practice location on file with NPPES is 123 Franklin Corner Rd, Lawrenceville, NJ 08648-2526.
- What is Margaret Berreth's phone number?
- The practice phone number listed in the NPPES registry for Margaret Berreth is (609) 896-1400.
- Does Margaret Berreth accept Medicare?
- Margaret Berreth is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Berreth's NPI active?
- Yes — Margaret Berreth's NPI (1275742397) is active in the NPPES registry as of the last update on 2021-04-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.