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Internal Medicine

Carol S. Spies, MD

Works at hospitals in Castle Rock, CO · Littleton, CO · Parker, CO … · Colorado

Summary

Dr. Carol S. Spies, MD is an internal medicine doctor at 2490 W 26th Ave, A120 Hlnh Orthopedics, Denver, CO 80211. Phone: (303) 925-4540. Accepts Medicare assignment. In 2024, Carol S. Spies had 448 Original Medicare patients and 1,722 services. NPI 1851430011. 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: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 2490 W 26th Ave, A120 Hlnh Orthopedics, Denver, CO 80211 · Directions (1 more location)
  • Phone: (303) 925‑4540
  • Medicare: Accepts Medicare assignment
  • Hospitals: AdventHealth Castle Rock, AdventHealth Littleton, AdventHealth Parker and 2 more
  • Group practice: Portercare Adventist Health System
  • Medical school: Tulane University School Of Medicine · graduated 1983 (43 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Carol S. Spies, 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 Carol S. Spies accept Medicare assignment?
Yes. Medicare's clinician data says Carol S. Spies 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 Carol S. Spies see?
In 2024, CMS data shows 448 Original Medicare patients and 1,722 services for Carol S. Spies. This counts Original Medicare only and measures volume, not quality.
What is Carol S. Spies's NPI number?
1851430011. 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 Carol S. Spies, 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 patients448
Services billed to Medicare1,722
Different services or procedures40
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)558 services
  2. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)351 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)244 services
  4. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)189 services
  5. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)55 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 cholesterol75%
  • High blood pressure54%
  • Arthritis49%
  • Ischemic heart disease30%
  • Osteoporosis30%
  • Depression27%

Hospitals where Carol S. Spies works

Medicare's Facility Affiliation Data lists Carol S. Spies 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.

  • AdventHealth Castle RockCastle Rock, CO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 060125
  • AdventHealth LittletonLittleton, CO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 060113
  • AdventHealth ParkerParker, CO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 060114
  • AdventHealth PorterDenver, CO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 060064
  • University of Colorado Hospital AuthorityAurora, CO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 060024

Practice locations

Addresses where Carol S. Spies is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Carol S. Spies 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 Denver

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

All internal medicine doctors in Denver →

Other clinicians in Portercare Adventist Health System

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

Clinician information

CredentialMD
Medical schoolTulane University School Of Medicine
Graduation year1983 (43 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1851430011
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