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Dr. Brett I. Greenberger, MD, Owner, Medical Director of Collaborative Counseling CenterPsychiatrist in Columbia, MD

Dr. Brett I. Greenberger, MD, Owner, Medical Director of Collaborative Counseling Center is a psychiatrist at 8820 Columbia 100 Pkwy #201, Columbia, MD 21045, ranked #39 of 819 psychiatrists in Columbia and rated 4.6 from 10 Google reviews. Open Monday to Friday.

This profile is built from public listing data. Confirm the provider’s license, services, fees and availability with the practice before you book.

Columbia, MDUpdated 0 paid placements in any rankingHow we rank

Call (443) 546-4000Website ↗

Key facts

Key facts about Dr. Brett I. Greenberger, MD, Owner, Medical Director of Collaborative Counseling Center
Address8820 Columbia 100 Pkwy #201, Columbia, MD 21045Get directions
Phone(443) 546-4000
Websitecollaborativecounselingcenter.com
HoursMonday to Friday: 8:30 AM – 6 PM
Google rating4.6 from 10 Google reviews

Specialties

Each specialty shows the evidence we matched it on.

  • Psychiatrymain specialtyGoogle main category
  • Therapists and Counselorsbusiness name

Service area

Serves Columbia and 11 towns within 40 miles: Ellicott City, Ilchester, West Elkridge, Catonsville, Hanover, Elkridge, Arbutus, Scaggsville, Woodlawn, Milford Mill and Linthicum.

Based in Columbia, MDView on map

Opening hours

Opening hours for Dr. Brett I. Greenberger, MD, Owner, Medical Director of Collaborative Counseling Center
DayHours
Monday8:30 AM – 6 PM
Tuesday8:30 AM – 6 PM
Wednesday8:30 AM – 6 PM
Thursday8:30 AM – 6 PM
Friday8:30 AM – 6 PM
SaturdayClosed
SundayClosed
  • Open evenings — no
  • Open Saturdays — no
  • Open Sundays — no

Questions about Dr. Brett I. Greenberger, MD, Owner, Medical Director of Collaborative Counseling Center

How is Dr. Brett I. Greenberger, MD, Owner, Medical Director of Collaborative Counseling Center ranked in Columbia?

Dr. Brett I. Greenberger, MD, Owner, Medical Director of Collaborative Counseling Center is ranked #39 of 819 psychiatrists in Columbia by RP Score, with 70 out of 100 as of November 2026. The score weighs reputation, review volume, recency, availability, specialty focus, proximity, claimed profile and partnered. No business can pay to change its rank.

What are Dr. Brett I. Greenberger, MD, Owner, Medical Director of Collaborative Counseling Center’s hours?

Dr. Brett I. Greenberger, MD, Owner, Medical Director of Collaborative Counseling Center is open Monday to Friday. Its listed hours are Monday to Friday, 8:30 AM – 6 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does Dr. Brett I. Greenberger, MD, Owner, Medical Director of Collaborative Counseling Center serve?

Serves Columbia and 11 towns within 40 miles: Ellicott City, Ilchester, West Elkridge, Catonsville, Hanover, Elkridge, Arbutus, Scaggsville, Woodlawn, Milford Mill and Linthicum. The list is based on the business's location and the usual service radius for psychiatry. Confirm your address is covered when you call.

What do Google reviews say about Dr. Brett I. Greenberger, MD, Owner, Medical Director of Collaborative Counseling Center?

Dr. Brett I. Greenberger, MD, Owner, Medical Director of Collaborative Counseling Center has a rating of 4.6 from 10 Google reviews. The RP Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact Dr. Brett I. Greenberger, MD, Owner, Medical Director of Collaborative Counseling Center?

Call Dr. Brett I. Greenberger, MD, Owner, Medical Director of Collaborative Counseling Center on (443) 546-4000. The business is at 8820 Columbia 100 Pkwy #201, Columbia, MD 21045. Its website is linked in the key facts on this page. Ask about fees, insurance and openings before you book a first session.

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Compare nearby psychiatrists

Dr. Brett I. Greenberger, MD, Owner, Medical Director of Collaborative Counseling Center compared with nearby businesses
BusinessRankRP ScoreGoogle ratingSaturdaySundayDistance away
Dr. Brett I. Greenberger, MD, Owner, Medical Director of Collaborative Counseling Center (this business)—704.6 (10)NoNo
Leonard J. Hertzberg, M.D.#37705.0 (3)——11.0 mi
Gladstone Psychiatry and Wellness#38704.0 (116)NoNo3.9 mi
Thriveworks Counseling & Psychiatry Columbia#40704.5 (155)YesYes3.4 mi

See all 819 ranked psychiatrists in Columbia