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

Internal Medicine

Anne C. Manchester, MD

Works at hospitals in Louisville, CO · Westminster, CO · Fort Morgan, CO · Colorado

Summary

Dr. Anne C. Manchester, MD is an internal medicine doctor at 100 Health Park Dr, Louisville, CO 80027. Phone: (303) 643-1159. Accepts Medicare assignment. In 2024, Anne C. Manchester had 309 Original Medicare patients and 6,330 services. NPI 1750532552. 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 Anne C. Manchester, 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 Anne C. Manchester accept Medicare assignment?
Yes. Medicare's clinician data says Anne C. Manchester 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 Anne C. Manchester see?
In 2024, CMS data shows 309 Original Medicare patients and 6,330 services for Anne C. Manchester. This counts Original Medicare only and measures volume, not quality.
What is Anne C. Manchester's NPI number?
1750532552. 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 Anne C. Manchester, 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 patients309
Services billed to Medicare6,330
Different services or procedures47
Participating Medicare providerYes
Average age of these patients78

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)318 services
  2. Hemoglobin a1c level (83036)102 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)83 services
  4. Injection of drug or substance under skin or into muscle (96372)70 services
  5. Hospital discharge day management, more than 30 minutes (99239)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 pressure74%
  • High cholesterol59%
  • Arthritis47%
  • Diabetes31%
  • Depression27%
  • Ischemic heart disease24%

Hospitals where Anne C. Manchester works

Medicare's Facility Affiliation Data lists Anne C. Manchester 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 Anne C. Manchester is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Anne C. Manchester as a member of this group (CMS data updated October 2, 2026).

  • Portercare Adventist Health System774 clinicians in the group

Specialties

Find other Internal Medicine doctors in Colorado →

Other internal medicine doctors in Louisville

Clinicians with the same Medicare primary specialty in Louisville, CO — not a recommendation.

All internal medicine doctors in Louisville →

Other clinicians in Portercare Adventist Health System

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

Clinician information

CredentialMD
Medical schoolUniversity Of Colorado School Of Medicine, Denver
Graduation year2007 (19 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1750532552
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