Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Lyssa Merriam Petter, MS, RD, LDN

Individual provider Registered Dietitian · NPI 1710086277

Lyssa Merriam Petter, MS, RD, LDN is a Registered Dietitian OR Nutrition Professional in Methuen, Massachusetts. Graduated from New York University School of Medicine in 1987, 39 years ago. Practices with Lifespan Physician Group of Massachusetts Inc, a 457-clinician group. Licensed in Massachusetts.

Years since qualifying
39
Trained at
New York University School of Medicine
Licensed in
MA
In the registry since
2006
What do these letters mean?
MS — Master of Science
A graduate science degree.
RD — Registered Dietitian
A credentialed nutrition professional.
LDN — Licensed Dietitian Nutritionist
A state-licensed dietitian nutritionist.

See every abbreviation used in this directory →

Practice location Address checks out

Caritas Holy Family Hospital 70 East Street Convent Bldg
Methuen, MA 01844
Phone: (978) 687-0156
Fax: (978) 681-9075
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X · Licence 826 (MA)

Record details

NPI number1710086277
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS , RD , LDN
Sole proprietorNo
NPI enumeratedSeptember 21, 2006
Last updated in NPPESJune 11, 2026
Certification dateJune 11, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyREGISTERED DIETITIAN OR NUTRITION PROFESSIONAL
Medical schoolNEW YORK UNIVERSITY SCHOOL OF MEDICINE
Graduated 1987 (39 years in practice)
Group practice Lifespan Physician Group Of Massachusetts Inc — 457 clinicians
Accepts Medicare assignment Not indicated

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