NPI age
7 years
Enumerated 2019-03-19
● Active
Type 1 · Individual
DR. Michael William, MD
William is 1 of 4 internal medicine providers in Frisco and 1 of 114 in Texas.
Primary specialty
Internal Medicine
Plus 1 subspecialty
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2026-03-06
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 114 active internal medicine providers in Texas.
NPI age
7 years
↓ 9 yr below median (16 yr)
State licenses
1 state
9% of peers hold multiple states
Subspecialties
1
In the 50% of peers with subspecialties
NPI lifetime · 2019 → 2026
2019-03Enumerated in NPPES
2019
2026
Where they practice
Practice location
2840 Legacy Dr Ste 400
Frisco, TX 750346055
Mailing address
2840 Legacy Dr Ste 400
Frisco, TX 750346055
Specialties
-
Internal Medicine PrimaryAn Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders....
-
Internal MedicineA physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer,...
Practice context
Part of a multi-provider practice. 11 other active providers share this practice address in NPPES.
Recently enumerated nearby: 1 new internal medicine provider has been added in Frisco in the last 180 days.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.