Helen Lyon, MD
NPI 1659362309 · Clinical Genetics (M.D.) Physician · Boston, MA
Enrolled with Medicare as Practitioner - Medical Genetics and Genomics · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Helen Lyon, MD is a Clinical Genetics (M.D.) Physician provider in Boston, MA (NPI 1659362309).
Provider details
- NPI number
- 1659362309
- Entity type
- Individual
- Primary specialty
- Clinical Genetics (M.D.) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 203432 (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
20 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
- 2005-11-02
- Last updated
- 2024-10-18
- Certified
- 2024-10-18
Frequently asked questions
- What is Helen Lyon's NPI number?
- Helen Lyon's National Provider Identifier (NPI) is 1659362309, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Helen Lyon's specialty?
- Helen Lyon is listed in the NPPES registry with a primary specialty of Clinical Genetics (M.D.) Physician (Allopathic & Osteopathic Physicians).
- Where is Helen Lyon located?
- Helen Lyon's practice location on file with NPPES is 300 Longwood Ave, Boston, MA 02115-5724.
- What is Helen Lyon's phone number?
- The practice phone number listed in the NPPES registry for Helen Lyon is (617) 355-6000.
- Does Helen Lyon accept Medicare?
- Helen Lyon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Helen Lyon's NPI active?
- Yes — Helen Lyon's NPI (1659362309) is active in the NPPES registry as of the last update on 2024-10-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.