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Emergency Medicine

Paige A. Diamant, MD

Works at hospitals in Portland, ME · Maine

Summary

Dr. Paige A. Diamant, MD is an emergency medicine doctor at 155 Rover River Pkwy, Portland, ME 04102. Phone: (207) 879-3000. Accepts Medicare assignment. In 2024, Paige A. Diamant had 253 Original Medicare patients and 289 services. NPI 1619381928. 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.

  • Specialty: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 155 Rover River Pkwy, Portland, ME 04102 · Directions (2 more locations)
  • Phone: (207) 879‑3000
  • Medicare: Accepts Medicare assignment
  • Hospital: Northern Light Mercy Hospital
  • Group practice: Mercy Hospital
  • Medical school: University Of Texas Medical School At San Antonio · graduated 2014 (12 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Paige A. Diamant, 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 Paige A. Diamant accept Medicare assignment?
Yes. Medicare's clinician data says Paige A. Diamant 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 Paige A. Diamant see?
In 2024, CMS data shows 253 Original Medicare patients and 289 services for Paige A. Diamant. This counts Original Medicare only and measures volume, not quality.
What is Paige A. Diamant's NPI number?
1619381928. 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 Paige A. Diamant, 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 patients253
Services billed to Medicare289
Different services or procedures18
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Emergency department visit with moderate level of medical decision making (99284)120 services
  2. Emergency department visit with high level of medical decision making (99285)87 services
  3. Emergency department visit with low level of medical decision making (99283)57 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 cholesterol70%
  • Arthritis61%
  • Anxiety47%
  • Depression33%
  • Diabetes32%

Hospitals where Paige A. Diamant works

Medicare's Facility Affiliation Data lists Paige A. Diamant 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.

Practice locations

Addresses where Paige A. Diamant is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Paige A. Diamant as a member of this group (CMS data updated October 2, 2026).

  • Mercy Hospital301 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Maine →

Other emergency medicine doctors in Portland

Clinicians with the same Medicare primary specialty in Portland, ME — not a recommendation.

All emergency medicine doctors in Portland →

Other clinicians in Mercy Hospital

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

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Medical School At San Antonio
Graduation year2014 (12 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1619381928
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