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ANNA R MAYNES RDN, LDN
NPI 1821646522
Dietitian, Registered in Boston, MA

Active since August 27, 2019
300 LONGWOOD AVE, BOSTON, MA 02115(617) 355-6000 Get Directions Write a Review

NPPES record last updated: November 21, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 21, 2023, Nov 11, 2019, Aug 27, 2019 (3 updates tracked since 2019).

About Anna R Maynes Rdn, Ldn NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ANNA R MAYNES RDN, LDN (NPI 1821646522) is an individual dietitian, registered in Boston, Massachusetts, licensed in Massachusetts (LDN4007) and active in the NPI registry since August 2019.

NPPES Registry Identity

NPI1821646522
Entity TypeIndividualFemale
Primary Taxonomy133V00000X
Provider Legal NameANNA R MAYNESCredential: RDN, LDN
Location Address300 LONGWOOD AVEBoston, MA 02115-5724
Mailing Address300 Longwood AveBoston, MA 02115-5724 · (617) 355-6000
Phone(617) 355-6000
Sole ProprietorNo
Enumeration DateAugust 27, 2019
Last NPPES UpdateNovember 21, 20233 updates tracked since enumeration
NPPES CertifiedNovember 21, 2023
✔ NPI 1821646522 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDietitian, RegisteredDietary & Nutritional Service Providers
Taxonomy Code133V00000X
License✔ Licensed in MA · LDN4007
Definition
A Registered Dietitian (RD)/Registered Dietitian Nutritionist (RDN) is an individual uniquely trained in the science of nutrition and practice of dietetics to design and provide medical nutrition therapy (MNT) and other evidence-based applications of the Nutrition Care Process (NCP) that exemplify the profession's systematic approach to providing high quality nutrition care. Registered dietitians provide MNT for the purpose of disease prevention or management, or to treat or rehabilitate an illness, injury, or condition, with the use of specific, indicated physical and cognitive nutrition care services comprised of one or more of the following aspects of the NCP: nutrition assessment/reassessment, nutrition diagnosis, nutrition intervention (e.g., nutrition counseling, therapeutic diet ordering, and nutrition education) and nutrition monitoring and evaluation.
300 LONGWOOD AVE, Boston, MA 02115
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Other Names 1

Former Name (1)Anna R O'brien

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Anna R Maynes Rdn, Ldn is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

Medicare enrollment records show Anna Maynes reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Boston Childrens Heart Foundation Inc
Same address
Pediatric Cardiology
300 LONGWOOD AVE
Boston, MA 02115
  • Reassigned Medicare billing, Massachusetts enrollment
  • 220 clinicians in this Medicare group
NPI 1982680922 (617) 355-6793

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JULIE ANN HANSEN LCSW
Social Worker (Clinical)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (857) 218-4309
MS. ANNA ROGLIERI
Nurse Practitioner (Psychiatric/Mental Health)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-6000
STEPHEN G. FLYNN M.D.
Anesthesiology (Pediatric Anesthesiology)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-6000
MRS. LAUREN ASHLEY SHARIS P.T., D.P.T
Physical Therapist
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-7216
MS. SOYUN KWAN LICSW
Social Worker (Clinical)
300 LONGWOOD AVE, CHILDREN'S HOSPITAL BOSTON
BOSTON, MA 02115
Suffolk County (617) 355-0567
PUJA BANKA M.D.
Pediatrics
300 LONGWOOD AVE, BADER 203
BOSTON, MA 02115
Suffolk County (617) 355-6363
MR. COURTNEY SULLIVAN FRATTO CPNP
Nurse Practitioner (Pediatrics)
300 LONGWOOD AVE, HUNNEWELL BUILDING 322
BOSTON, MA 02115
Suffolk County (857) 218-4085
DR. ELIZABETH S TAGLAUER M.D., PH.D.
Pediatrics (Neonatal-Perinatal Medicine)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-6000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Anna Maynes's NPI number?

The NPI number for Anna Maynes is 1821646522. It was assigned to this individual provider in the NPPES registry on August 27, 2019. The provider is also known as Anna R O'brien.

Where is Anna Maynes located?

Anna Maynes practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-6000.

What is Anna Maynes's specialty?

The primary specialty registered for this NPI is Dietitian, Registered with taxonomy code 133V00000X.

Is Anna Maynes enrolled in Medicare?

Yes. Anna Maynes is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Anna Maynes's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Anna Maynes reassigns Medicare benefits to Boston Childrens Heart Foundation Inc (Boston, MA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Anna Maynes's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Anna Maynes was last updated on November 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.