Sarah Larsen, MD
NPI 1134756505 · Family Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sarah Larsen, MD is a Family Medicine Physician provider in Boston, MA (NPI 1134756505).
Provider details
- NPI number
- 1134756505
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 49 | 20 |
| Testosterone | 34 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 32 | 11 |
| Metoprolol Succinate | 32 | — |
| Omeprazole | 28 | — |
| Oxycodone Hcl | 27 | — |
Practice location
Mailing address
Additional practice locations (1)
- 1121 E North AveMilwaukee, WI 53212-3515Phone: (414) 267-6502
Registry dates
- Enumerated
- 2020-03-25
- Last updated
- 2023-10-30
- Certified
- 2023-10-30
Frequently asked questions
- What is Sarah Larsen's NPI number?
- Sarah Larsen's National Provider Identifier (NPI) is 1134756505, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Larsen's specialty?
- Sarah Larsen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sarah Larsen located?
- Sarah Larsen's practice location on file with NPPES is 1340 Boylston St, Boston, MA 02215-4302.
- What is Sarah Larsen's phone number?
- The practice phone number listed in the NPPES registry for Sarah Larsen is (617) 267-0900.
- Does Sarah Larsen accept Medicare?
- Sarah Larsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sarah Larsen's NPI active?
- Yes — Sarah Larsen's NPI (1134756505) is active in the NPPES registry as of the last update on 2023-10-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.