Dr. William Henderson, DDS
- Dental school: Baylor College of Dentistry, 1966
- Holds a nitrous oxide (laughing gas) permit (since 1988)
NPI 1447268685 · Texas State Board of Dental Examiners, checked Sep 2026 · named on its business listing
Endodontist · Vickery Meadow
Woodhill Endodontics
8335 Walnut Hill Ln Suite 125, Dallas, TX 75231
4.5+ stars in 250+ reviews
Opening hours below
Reviews
4.5+ stars in 250+ reviews
4–5 stars: 98% · 1–2 stars: 1% · 369 written reviews
Last 12 months: 136 reviews · 99% 4–5 stars · Replies: 26% of reviews · 1 of 5 one- and two-star
76mention friendly, welcoming staff
18mention a gentle touch
16mention explaining everything before doing it
- Nitrous oxide permit (TX board)
What patients say
How the visit felt
18A gentle touch
16Explaining everything before doing it
9Putting nervous patients at ease
Staff and office
76Friendly, welcoming staff
7A clean office
5Knowledgeable staff
Getting seen
8Being fitted in at short notice
Why patients came
7Coming in with an abscess or swelling
State records list Dr. Henderson's nitrous oxide permit
Texas records show Dr. William Henderson holds a nitrous oxide permit dating to 1988. The permit shows state authorization, but not whether nitrous oxide is used at a particular visit.
How it compares in Dallas
- One- and two-star reviews
- 1%of 369 written reviews
- A lower share than 66% of Dallas practices
- Middle Dallas practice: 3%
- Replies to reviews
- 26%of written reviews get a reply (1 of 5 one- and two-star)
- Fewer replies than 53% of Dallas practices
- Middle Dallas practice: 29%
- Licensed in Texas since
- 1966its longest-licensed confirmed dentist
- Licensed longer than 99% of Dallas dentists we list
- Middle Dallas dentist: first licensed 2004
What they can help with
-
Root canal
Registered specialist with the state board · Listed category: Endodontist · Specialist taxonomy in the NPI registry
-
Sedation & nervous patients
A confirmed dentist holds a Texas board nitrous oxide permit
Root canal: how it works Show
Sedation & nervous patients: how it works Show
Urgent visits come up in reviews
Several reviewers describe walk-ins and same-day care for urgent problems. One reviewer says they were seen two hours after calling.
Fees and re-evaluation terms vary
One reviewer reports a 3% credit-card fee. The practice says root canal re-evaluations are free for up to 12 months, then billed according to dental benefits; a reviewer disputes a charge after that period.
Ways to pay
- Accepts credit cards, debit cards and mobile pay (its business profile)
Your review of Woodhill Endodontics
No account needed · read by us before it goes up
When you can go
- Opens early
- 7:30 am, Monday to Friday
- 21% of Dallas practices open before 8 am
- Weekends
- Closed
Mon
7:30 am–5 pm
Tue
7:30 am–5 pm
Wed
7:30 am–5 pm
Thu
7:30 am–5 pm
Fri
7:30 am–5 pm
Sat
Closed
Sun
Closed
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Hours from its listing. Check when you call.
Getting there
8335 Walnut Hill Ln Suite 125Dallas, TX 75231 Get directions
- Wheelchair-accessible entrance, parking and restroom
Its business profile
In the practice's words
Its own business description
“Thank you for choosing Woodhill Endodontics. Our expert team, led by respected member of the American Association of Endodontists, specialist Dr. Ayik, provides the highest standard of professional care in a friendly, comfortable environment. We look forward to being of service to you. …”
Need another dentist?
-
The Endodontic Center by Dr. Kendall Baginski
0.1 mi · 4.5+ stars in 20+ reviews
-
Ambriz Dental
0.6 mi · 5 stars in 20+ reviews
-
Dallas Endodontics
2.1 mi · 4.5+ stars in 250+ reviews
Ready to call?
Sources and dates
Business listing and reviews, Sep 2026 · woodhillendo.com, Sep 2026 · Texas State Board of Dental Examiners, Sep 2026 · NPI registry