Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Pathology

Marcia L. Wills, MD

Works at hospitals in Rochester, NH · Derry, NH · Portsmouth, NH … · New Hampshire

Summary

Dr. Marcia L. Wills, MD is a pathologist at 1 Parkland Dr, Derry, NH 03038. Phone: (603) 663-2583. Accepts Medicare assignment. In 2024, Marcia L. Wills had 976 Original Medicare patients and 3,355 services. NPI 1679660799. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Marcia L. Wills, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Marcia L. Wills accept Medicare assignment?
Yes. Medicare's clinician data says Marcia L. Wills accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Marcia L. Wills see?
In 2024, CMS data shows 976 Original Medicare patients and 3,355 services for Marcia L. Wills. This counts Original Medicare only and measures volume, not quality.
What is Marcia L. Wills's NPI number?
1679660799. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Marcia L. Wills, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients976
Services billed to Medicare3,355
Different services or procedures21
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Pathology examination of tissue using a microscope, intermediate complexity (88305)1,381 services
  2. Special stained specimen slides to examine tissue, each additional procedure (88341)560 services
  3. Special stained specimen slides to examine tissue, initial procedure (88342)428 services
  4. Microscopic genetic analysis of tumor, manual (88360)167 services
  5. Cell examination of specimen, selective cellular enhancement technique (88112)156 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis46%
  • Diabetes33%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)33%
  • Ischemic heart disease29%

Hospitals where Marcia L. Wills works

Medicare's Facility Affiliation Data lists Marcia L. Wills at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Frisbie Memorial HospitalRochester, NH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 300014
  • Parkland Medical CenterDerry, NH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 300017
  • Portsmouth Regional HospitalPortsmouth, NH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 300029
  • Wentworth-Douglass HospitalDover, NH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 300018

Practice locations

Addresses where Marcia L. Wills is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Marcia L. Wills as a member of this group (CMS data updated October 2, 2026).

  • Forward Pathology Solutions - New Hampshire LLC5 clinicians in the group

Specialties

Find other Pathology doctors in New Hampshire →

Other pathologists in New Hampshire

Clinicians with the same Medicare primary specialty in New Hampshire — not a recommendation.

All pathologists in New Hampshire →

Other clinicians in Forward Pathology Solutions - New Hampshire LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolGeisel School Of Medicine At Dartmouth
Graduation year1992 (34 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1679660799
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians