Quick answers
- Does Lydia H. Fisher accept Medicare assignment?
- Yes. Medicare's clinician data says Lydia H. Fisher 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 Lydia H. Fisher see?
- In 2024, CMS data shows 292 Original Medicare patients and 92,783 services for Lydia H. Fisher. This counts Original Medicare only and measures volume, not quality.
- What is Lydia H. Fisher's NPI number?
- 1275851255. 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 Lydia H. Fisher, 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 patients | 292 |
|---|---|
| Services billed to Medicare | 92,783 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Injection, daptomycin, 1 mg (J0878)79,810 services
- Injection, ceftriaxone sodium, per 250 mg (J0696)2,048 services
- Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less (96365)568 services
- Injection, ertapenem sodium, 500 mg (J1335)416 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)260 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%
- Arthritis59%
- Chronic kidney disease52%
- Depression48%
- Heart failure48%
Hospitals where Lydia H. Fisher works
Medicare's Facility Affiliation Data lists Lydia H. Fisher 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
- The Medical Center of Aurora & South HospitalAurora, CO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 060100
- UCHealth Highlands Ranch HospitalHighlands Ranch, CO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 060132
Practice locations
Addresses where Lydia H. Fisher is enrolled with Medicare (CMS data updated October 2, 2026).
- 1550 S Potomac St, Suite 270Aurora, CO 80012 (303) 750‑1800
Group practices
Medicare enrollment lists Lydia H. Fisher as a member of this group (CMS data updated October 2, 2026).
- Rocky Mountain Infectious Disease Specialists, P.C.10 clinicians in the group
Specialties
- Infectious Diseaseprimary
- Internal Medicinealso
Other infectious disease doctors in Aurora
Clinicians with the same Medicare primary specialty in Aurora, CO — not a recommendation.
Other clinicians in Rocky Mountain Infectious Disease Specialists, P.C.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Maryland School Of Medicine |
| Graduation year | 2015 (11 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1275851255 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians