Quick answers
- Does Holly L. Singletary accept Medicare assignment?
- Yes. Medicare's clinician data says Holly L. Singletary 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 Holly L. Singletary see?
- In 2024, CMS data shows 255 Original Medicare patients and 4,769 services for Holly L. Singletary. This counts Original Medicare only and measures volume, not quality.
- What is Holly L. Singletary's NPI number?
- 1225203433. 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 Holly L. Singletary, 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 | 255 |
|---|---|
| Services billed to Medicare | 4,769 |
| Different services or procedures | 32 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Destruction of precancer skin growth, 2-14 growths (17003)656 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)311 services
- Destruction of precancer skin growth, 1 growth (17000)245 services
- Biopsy of related skin growth, first growth (11102)210 services
- Biopsy of related skin growth, each additional growth (11103)82 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 pressure56%
- Arthritis35%
- Ischemic heart disease30%
- Osteoporosis17%
- Depression16%
Practice locations
Addresses where Holly L. Singletary is enrolled with Medicare (CMS data updated October 2, 2026).
- 401 RR, 620 Suite 200Lakeway, TX 78734 (512) 610‑0549
Group practices
Medicare enrollment lists Holly L. Singletary as a member of this group (CMS data updated October 2, 2026).
- Westlake Dermatology PA54 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in Lakeway
Clinicians with the same Medicare primary specialty in Lakeway, TX — not a recommendation.
Other clinicians in Westlake Dermatology PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical School At Houston |
| Graduation year | 2006 (20 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225203433 |
| 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