MARISSA BLAIR AVOLIO MD
NPI 1386902724
Pediatrics - Pediatric Endocrinology in Manchester, NH

Active since April 23, 2012PECOS Enrolled
100 HITCHCOCK WAY, MANCHESTER, NH 03104(603) 695-2500(603) 640-1228 Get Directions Write a Review

NPPES record last updated: December 9, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 9, 2025, Aug 29, 2022, Aug 9, 2019 and 1 more (4 updates tracked since 2019).

About Marissa Blair Avolio Md NPPES

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

MARISSA BLAIR AVOLIO MD (NPI 1386902724) is an individual pediatric endocrinology provider in Manchester, New Hampshire, licensed in New Hampshire (23021) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1386902724
Entity TypeIndividualFemale
Primary Taxonomy2080P0205X
Provider Legal NameMARISSA BLAIR AVOLIOCredential: MD
Location Address100 HITCHCOCK WAYManchester, NH 03104-4125
Mailing Address800 Washington StBoston, MA 02111-1552 · (617) 636-5000 · Fax (617) 636-8391
Fax(603) 640-1228
Sole ProprietorNo
Enumeration DateApril 23, 2012
Last NPPES UpdateDecember 9, 20254 updates tracked since enumeration
NPPES CertifiedDecember 9, 2025
✔ NPI 1386902724 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric EndocrinologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0205X
Licenses✔ Licensed in NH · 23021✔ Licensed in MA · 278122
Definition
A pediatrician who provides expert care to infants, children and adolescents who have diseases that result from an abnormality in the endocrine glands (glands which secrete hormones). These diseases include diabetes mellitus, growth failure, unusual size for age, early or late pubertal development, birth defects, the genital region and disorders of the thyroid, the adrenal and pituitary glands.
Also ListedPediatricsTaxonomy 208000000X · License 112429 (PA)
100 HITCHCOCK WAY, Manchester, NH 03104

Secondary Practice Locations 2

Location 1800 Washington StBoston, MA 02111 · Phone (617) 636-5000 · Fax (617) 636-8391
Location 2755 Washington StBoston, MA 02111-1520 · Phone (617) 636-5335

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Marissa Blair Avolio Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Marissa Avolio reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Psychiatric Hospital
218 EAST RD
Hampstead, NH 03841
  • Reassigned Medicare billing, New Hampshire enrollment
  • 2,620 clinicians in this Medicare group
Rehabilitation, Substance Use Disorder
24 RAILROAD ST
Keene, NH 03431
  • Reassigned Medicare billing, New Hampshire enrollment
  • 2,999 clinicians in this Medicare group

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 03104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$132.09 typical visit price
range $57.75 – $174.26
Typical copayment $33.02 (range $14.43 – $43.56)
Most-billed visit code 99204
Established Patient
$101.54 typical visit price
range $18.70 – $142.15
Typical copayment $25.38 (range $4.67 – $35.53)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Dermatology
100 HITCHCOCK WAY
MANCHESTER, NH 03104
Physician Assistant (Surgical)
100 HITCHCOCK WAY, D-H MANCHESTER, GENERAL SURGERY
MANCHESTER, NH 03104
Podiatrist (Foot & Ankle Surgery)
100 HITCHCOCK WAY
MANCHESTER, NH 03104
Urology
100 HITCHCOCK WAY
MANCHESTER, NH 03104
Nurse Practitioner
100 HITCHCOCK WAY
MANCHESTER, NH 03104
Radiology (Diagnostic Radiology)
100 HITCHCOCK WAY
MANCHESTER, NH 03104
Internal Medicine (Rheumatology)
100 HITCHCOCK WAY
MANCHESTER, NH 03104
Anesthesiology
100 HITCHCOCK WAY
MANCHESTER, NH 03104

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 Marissa Avolio's NPI number?

The NPI number for Marissa Avolio is 1386902724. It was assigned to this individual provider in the NPPES registry on April 23, 2012.

Where is Marissa Avolio located?

Marissa Avolio practices at 100 Hitchcock Way, Manchester, NH 03104. The listed phone number is (603) 695-2500.

What is Marissa Avolio's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Endocrinology, with taxonomy code 2080P0205X.

Is Marissa Avolio enrolled in Medicare?

Yes. Marissa Avolio is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Marissa Avolio's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marissa Avolio reassigns Medicare benefits to 2 organizations: Mary Hitchcock Memorial Hospital (Hampstead, NH) and Dartmouth-Hitchcock Clinic (Keene, NH). Each 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 Marissa Avolio's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Marissa Avolio accept?

Health plans from Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and Taro Health list Marissa Avolio as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Marissa Avolio was last updated on December 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.