Sarah Zimmerman, MD
NPI 1295861961 · Pediatrics Physician · Waltham, MA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sarah Zimmerman, MD is a Pediatrics Physician provider in Waltham, MA (NPI 1295861961).
Provider details
- NPI number
- 1295861961
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- L-224892 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
- 2007-02-26
- Last updated
- 2018-05-02
Frequently asked questions
- What is Sarah Zimmerman's NPI number?
- Sarah Zimmerman's National Provider Identifier (NPI) is 1295861961, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Zimmerman's specialty?
- Sarah Zimmerman is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Sarah Zimmerman located?
- Sarah Zimmerman's practice location on file with NPPES is 40 2nd Ave Ste 400, Waltham, MA 02451-1137.
- What is Sarah Zimmerman's phone number?
- The practice phone number listed in the NPPES registry for Sarah Zimmerman is (781) 487-4340.
- Does Sarah Zimmerman accept Medicare?
- Sarah Zimmerman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sarah Zimmerman's NPI active?
- Yes — Sarah Zimmerman's NPI (1295861961) is active in the NPPES registry as of the last update on 2018-05-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.