Quick answers
- Does Peggy B. Liao accept Medicare assignment?
- Medicare's clinician data says Peggy B. Liao may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Peggy B. Liao see?
- In 2024, CMS data shows 926 Original Medicare patients and 2,582 services for Peggy B. Liao. This counts Original Medicare only and measures volume, not quality.
- What is Peggy B. Liao's NPI number?
- 1699799379. 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 Peggy B. Liao, 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 | 926 |
|---|---|
| Services billed to Medicare | 2,582 |
| Different services or procedures | 39 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)918 services
- Destruction of precancer skin growth, 2-14 growths (17003)523 services
- Destruction of skin growth, 1-14 growths (17110)354 services
- Destruction of precancer skin growth, 1 growth (17000)130 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)130 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 cholesterol68%
- High blood pressure53%
- Arthritis42%
- Osteoporosis21%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)19%
- Ischemic heart disease18%
Practice locations
Addresses where Peggy B. Liao is enrolled with Medicare (CMS data updated October 2, 2026).
- 2130 Stout StDenver, CO 80205 (303) 293‑2220
- 2200 E 18th AveDenver, CO 80206 (303) 744‑2704
Group practices
Medicare enrollment lists Peggy B. Liao as a member of these groups (CMS data updated October 2, 2026).
- Advanced Dermatology of Colorado PC65 clinicians in the group
- Colorado Coalition for the Homeless46 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in Denver
Clinicians with the same Medicare primary specialty in Denver, CO — not a recommendation.
Other clinicians in Advanced Dermatology of Colorado PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Duke University School Of Medicine |
| Graduation year | 2001 (25 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1699799379 |
| 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
- 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