Daniel Williams, PA-C
NPI 1528140647 · Physician Assistant · Leesburg, VA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Williams, PA-C is a Physician Assistant provider in Leesburg, VA (NPI 1528140647).
Provider details
- NPI number
- 1528140647
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 110002527 (VA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
15 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 15 | $86 |
Typical Medicare-allowed amounts for these services range $86–$86 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-19
- Last updated
- 2019-02-20
Frequently asked questions
- What is Daniel Williams's NPI number?
- Daniel Williams's National Provider Identifier (NPI) is 1528140647, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Williams's specialty?
- Daniel Williams is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Daniel Williams located?
- Daniel Williams's practice location on file with NPPES is 19465 Deerfield Ave Ste 405, Leesburg, VA 20176-1707.
- What is Daniel Williams's phone number?
- The practice phone number listed in the NPPES registry for Daniel Williams is (703) 858-1800.
- Does Daniel Williams accept Medicare?
- Daniel Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Williams's NPI active?
- Yes — Daniel Williams's NPI (1528140647) is active in the NPPES registry as of the last update on 2019-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.