Lars Mueller, MD
NPI 1033326269 · Pediatric Hematology & Oncology Physician · Boston, MA
Lars Mueller, MD is a Pediatric Hematology & Oncology Physician provider in Boston, MA (NPI 1033326269).
Provider details
- NPI number
- 1033326269
- Entity type
- Individual
- Primary specialty
- Pediatric Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 234607 (MA)
Specialties & taxonomies
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
- 2007-05-17
- Last updated
- 2008-11-05
Frequently asked questions
- What is Lars Mueller's NPI number?
- Lars Mueller's National Provider Identifier (NPI) is 1033326269, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lars Mueller's specialty?
- Lars Mueller is listed in the NPPES registry with a primary specialty of Pediatric Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Lars Mueller located?
- Lars Mueller's practice location on file with NPPES is 300 Longwood Ave, Boston, MA 02115-5724.
- What is Lars Mueller's phone number?
- The practice phone number listed in the NPPES registry for Lars Mueller is (617) 838-5122.
- Is Lars Mueller's NPI active?
- Yes — Lars Mueller's NPI (1033326269) is active in the NPPES registry as of the last update on 2008-11-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.