NPI age
20 years
Enumerated 2006-01-26
● Active
Type 1 · Individual
William Posten, MD
Posten is 1 of 10 dermatology providers in Dallas and 1 of 167 in Texas.
Primary specialty
Dermatology
Plus 1 subspecialty
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2025-07-30
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 167 active dermatology providers in Texas.
NPI age
20 years
↑ 3 yr above median (17 yr)
State licenses
1 state
13% of peers hold multiple states
Subspecialties
1
In the 56% of peers with subspecialties
NPI lifetime · 2006 → 2026
2006-01Enumerated in NPPES
2006
2026
Where they practice
Practice location
12222 Coit Rd, Suite 101
Dallas, TX 752512306
Mailing address
9900 N Central Expy Ste 500
Dallas, TX 752310928
Specialties
-
Dermatology PrimaryThe highly-trained surgeons that perform Mohs Micrographic Surgery are specialists both in dermatology and pathology. With their extensive knowledge of the skin and unique pathological skills, they are able to remove only diseased...
-
DermatologyA dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The...
Practice context
Part of a multi-provider practice. 4 other active providers share this practice address in NPPES.
Provyx · Custom healthcare lists
Need all 167 Dermatology providers in Texas?
Get the full list as a CSV with verified work emails, direct phones, and LinkedIn URLs.
Request a quote →How to verify this provider
- 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.