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Hematology/Oncology

Christi A. Hayes

Works at hospitals in Manchester, NH · Concord, NH · Lebanon, NH … · New Hampshire, Vermont

Summary

Christi A. Hayes is a hematologist-oncologist at 1 Medical Ctr Dr, Lebanon, NH 03756. Phone: (603) 650-5000. Accepts Medicare assignment. In 2024, Christi A. Hayes had 335 Original Medicare patients and 854 services. NPI 1629265111. 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 Christi A. Hayes, 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 Christi A. Hayes accept Medicare assignment?
Yes. Medicare's clinician data says Christi A. Hayes 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 Christi A. Hayes see?
In 2024, CMS data shows 335 Original Medicare patients and 854 services for Christi A. Hayes. This counts Original Medicare only and measures volume, not quality.
What is Christi A. Hayes's NPI number?
1629265111. 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 Christi A. Hayes, 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 patients335
Services billed to Medicare854
Different services or procedures19
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)263 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)262 services
  3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)85 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)75 services
  5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)52 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 pressure67%
  • High cholesterol59%
  • Arthritis38%
  • Anxiety30%
  • Chronic kidney disease28%
  • Depression27%

Hospitals where Christi A. Hayes works

Medicare's Facility Affiliation Data lists Christi A. Hayes 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.

  • Catholic Medical CenterManchester, NH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 300034
  • Concord HospitalConcord, NH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 300001
  • Mary Hitchcock Memorial HospitalLebanon, NH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 300003
  • Springfield HospitalSpringfield, VT · Critical Access Hospital · Emergency services: listed by Medicare · CCN 471306
  • Weeks Medical CenterLancaster, NH · Critical Access Hospital · Emergency services: listed by Medicare · CCN 301303

Practice locations

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

Group practices

Medicare enrollment lists Christi A. Hayes as a member of these groups (CMS data updated October 2, 2026).

  • Dartmouth-Hitchcock Clinic1,472 clinicians in the group
  • Mary Hitchcock Memorial Hospital1,280 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in New Hampshire →

Other hematologist-oncologists in Lebanon

Clinicians with the same Medicare primary specialty in Lebanon, NH — not a recommendation.

All hematologist-oncologists in Lebanon →

Other clinicians in Dartmouth-Hitchcock Clinic

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

Clinician information

Graduation year2007 (19 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1629265111
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