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General dentist · The Loop

Sanford L Barr DDS and Marianne Diachenko DDS

25 E Washington St Ste. 302, Chicago, IL 60602

5 stars in 100+ reviews Opening hours below
Call (312) 372-4844 Directions Website (barranddiachenkodds.com, opens in a new tab)

Reviews

5 stars in 100+ reviews

4–5 stars: 100% · 1–2 stars: 0% · 158 written reviews

Last 12 months: 91 reviews · 100% 4–5 stars · Replies: 58% of reviews

13mention friendly, welcoming staff

9mention modern equipment

Read what patients say (2 themes) ↓Write a review

State records: Dr. Barr first licensed in 1976

Up-to-date equipment draws comment in nine reviews, and the website lists low-radiation digital X-rays. Sanford Barr has been licensed in Illinois since 1976, and four reviewers call themselves patients for life. It keeps office hours in the Loop, 8 am to 5 pm Monday to Thursday and until 2 pm Friday, so an early visit can fit before work.

Fact-checked · How we write these

Who you'll see

Dr. Marianne Diachenko, DDS

  • Training: Certification in CEREC and Invisalign (its website)

NPI 1982712212 · named on the practice's website

Dr. Sanford Barr, DDS

  • Illinois license active, first licensed Jul 1976
  • Training: Fellow, Academy of General Dentistry; Certificates in implants, cosmetics and CAD/CAM dentistry (its website)

NPI 1952562787 · Illinois Department of Financial and Professional Regulation, checked Sep 2026 · named on the practice's website

No one- or two-star reviews among 158 reviews

Its share of one- and two-star reviews is among the lowest of the Chicago practices we list.

One- and two-star reviews
0%of 158 written reviews
A lower share than 91% of Chicago practices
Middle Chicago practice: 5%
Replies to reviews
58%of written reviews get a reply
More replies than 66% of Chicago practices
Middle Chicago practice: 33%
Licensed in Illinois since
1976its longest-licensed confirmed dentist
Licensed longer than 96% of Chicago dentists we list
Middle Chicago dentist: first licensed 2007

How we compare

Insurance payment arrangement

The practice’s website says it is out of network with all insurance and collects payment at the time of service. It files claims as a courtesy and offers CareCredit and payment options.

Ways to pay

  • Payment plans (its website)
  • Accepts credit cards, debit cards and mobile pay (its business profile)
  • Accepts CareCredit (its website)
  • Takes cash, Discover and Mastercard (its website)

What they can help with

Veneers & cosmetic: how it works ShowA front tooth with a veneer, a thin shell on the front surface only, beside a front tooth with a crown covering all of it above the gum.

Also listed on its website

What patients say

Staff and office

13Friendly, welcoming staff
9Modern equipment

How we count themes

Equipment and memberships

Equipment and treatments on its website
Low-Radiation Digital X-RaysVELScope

What unhappy patients say

How we read these

Your review of Sanford L Barr DDS and Marianne Diachenko DDS

No account needed · read by us before it goes up

Write a review

When you can go

Weekends
Closed

Hours from its listing. Check when you call.

Getting there

25 E Washington St Ste. 302
Chicago, IL 60602
Get directions
  • Wheelchair-accessible entrance and restroom

Its business profile

In the practice's words

Its own business description

“Ready to discover the possibilities Dr. Sanford Barr and Dr. …”

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Ready to call?

Call (312) 372-4844 Other Chicago dentists

Sources and dates

Business listing and reviews, Sep 2026 · barranddiachenkodds.com, Sep 2026 · Illinois Department of Financial and Professional Regulation, Sep 2026 · NPI registry · City of Chicago community areas

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