Updated 3 weeks ago

Best Diagnostic Centers in Onitsha

Ranked lists 18 diagnostic centers in Onitsha. The default view shows 18 local listings in ranking order. EVO MEDICALS is the first local listing in the default order, with a Google rating of 5.0 from 21 Google reviews.

Compiled from Ranked's database. Method and checks: Eruo Fredoline, founder, Ranked Technologies Ltd. How we rank. Latest listing check 23 September 2026.

How the algorithm scored this18 businesses ranked

Ordered on Google rating, review volume, review recency, profile completeness, review sentiment and the earned verified tick, on weights published and in force since 2026-07-16. Paid placement is not one of them.

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As of October 2026, Ranked lists 18 diagnostic centers in Onitsha, Nigeria, ordered using Google review signals and Ranked's published scoring method. Payment does not change the order.

Source: Ranked (ranked.ng) directory database · full statistics · methodology · EVO MEDICALS vs Ultimate Medical Diagnostic Services Ltd., side by side

Ranked: 18
Google reviews reported: 83
Photos on file: 1
Page refreshed: 26d ago

Sort byMin rating18 results

Ranked #1 by score#1 in the city
1
EVO MEDICALS
67.8/ 100
5.05.0 out of 5 stars21 reviews
Prime junction, before college of education, college road, Nsugbe 433106, Anambra, Nigeria
- Hours listed
- Open Sundays
Why ranked #1? ▾
Google rating95
Review volume45
Review recency77
Profile completeness33
Review sentiment75
Verification0
Scores 0 to 100 per dimension. See how we rank.
Recent reviews
ikechukwu U. ★★★★★ : A trusted source for laboratory supplies. Products are good quality and service is professional and dependable.
Jacqueline N. ★★★★★ : While I was working with Rose diagnostics Anambra, they provided an awesome installation, training, repair and maintenance on all our diagnostic equipment. I have never met a company more professional than EVO, I highly recommend.
2
Ultimate Medical Diagnostic Services Ltd.
63.4/ 100
5.05.0 out of 5 stars6 reviews
14/32 Awka Rd, Niger Bridge Layout, Onitsha 430231, Anambra, Nigeria
- Hours listed
- Open Sundays
Why ranked #2? ▾
Google rating95
Review volume28
Review recency93
Profile completeness33
Review sentiment50
Verification0
Scores 0 to 100 per dimension. See how we rank.
Recent reviews
Genevieve O. ★★★★★ : Ultimate Medical Diagnostic Services, is just the best diagnostic center i've been to in years. I had a very good experience with them. The friendly, respectful, and professional approach/service is something others need to learn walai! Everything went smoothly from start to finish, their clean environment, accuracy of result, These guys are doing great! 👍🏼👍🏼 Overall, I’m really pleased with the service and would definitely recommend them always💯
oluchukwu O. ★★★★★ : I had a really good experience at Ultimate Medical Diagnostic Services. From the moment I arrived, the staff were friendly, respectful, and very professional. I was attended to promptly, and the whole process was smooth and well organized. I was particularly impressed with the quality of their services and the way the staff handled everything with care and attention. The environment was clean and comfortable, and the customer service was really good. Overall, I had a pleasant experience and I’m happy with the service I received. I would definitely recommend Ultimate Medical Diagnostic Services to anyone looking for reliable and quality laboratory diagnostic services.
3
Sun diagnostic center
50.4/ 100
3.93.9 out of 5 stars8 reviews
96 Awka Rd, near General hospital, Onitsha, 434106, Anambra, Nigeria
Why ranked #3? ▾
Google rating69
Review volume32
Review recency89
Profile completeness0
Review sentiment50
Verification0
Scores 0 to 100 per dimension. See how we rank.
Recent reviews
Benny N. ★★★★★ : Customer friendly, fast and efficient
Amarachi O. ★★★★★ : It's well equipped both with facilities and staff.
4
PRESTIGE DIAGNOSTICA
53.3/ 100
4.54.5 out of 5 stars2 reviews
No 2 okwudinka lane, opposite Kamo Plaza, beside DMGS roundabout, City Centre, Onitsha 434106, Anambra, Nigeria
- Hours listed
Why ranked #4? ▾
Google rating88
Review volume16
Review recency33
Profile completeness67
Review sentiment50
Verification0
Scores 0 to 100 per dimension. See how we rank.
5
OCEANIC MEDICAL DIAGNOSTICS SERVICES
51.5/ 100
5.05.0 out of 5 stars1 reviews
54, by Ziks Ave, Lagos St, Fegge, Onitsha 431108, Anambra, Nigeria
- Hours listed
Why ranked #5? ▾
Google rating95
Review volume10
Review recency35
Profile completeness33
Review sentiment50
Verification0
Scores 0 to 100 per dimension. See how we rank.
Recent reviews
Tina C. ★★★★★ : Good and excellent services they offer
6
New Hope Hospitals & Laboratory (Okpoko)
50.3/ 100
5.05.0 out of 5 stars1 reviews
168 Obodoukwu Road, Plot E, Industrial Layout, Niger Bridge Head, Onitsha 431105, Anambra, Nigeria
- Hours listed
Why ranked #6? ▾
Google rating95
Review volume10
Review recency0
Profile completeness67
Review sentiment50
Verification0
Scores 0 to 100 per dimension. See how we rank.
7
CareStream Diagnostics
47.1/ 100
5.05.0 out of 5 stars1 reviews
90 Awka Rd, Omagba Phase I, Onitsha 434104, Anambra, Nigeria
- Hours listed
Why ranked #7? ▾
Google rating95
Review volume10
Review recency2
Profile completeness33
Review sentiment50
Verification0
Scores 0 to 100 per dimension. See how we rank.
8
Mayrock Health Services
47.1/ 100
5.05.0 out of 5 stars1 reviews
No. 10 3-3 Ocheze Street, opposite Zecon Filling Station), Omeife, Akpaka Forest Reser 433106, Anambra, Nigeria
- Open 24 hours
Why ranked #8? ▾
Google rating95
Review volume10
Review recency2
Profile completeness33
Review sentiment50
Verification0
Scores 0 to 100 per dimension. See how we rank.
Recent reviews
Echi E. ★★★★★ : A good health care with a professional doctor
Laura N. ★★★★★ : MayRock Hospital takes pride in quality health care.
9
Success Investment
47.1/ 100
5.05.0 out of 5 stars1 reviews
Suite 1, 41 Old Market Rd, GRA, Onitsha 430262, Anambra, Nigeria
- Hours listed
Why ranked #9? ▾
Google rating95
Review volume10
Review recency1
Profile completeness33
Review sentiment50
Verification0
Scores 0 to 100 per dimension. See how we rank.
10
J C-MIRACLE DIAGNOSTIC LABORATORY.
47.0/ 100
5.05.0 out of 5 stars1 reviews
No. 9 Akunne Ekwensi Street Woliwo Layout Onitsha, City Centre, Onitsha 430261, Anambra, Nigeria
- Hours listed
Why ranked #10? ▾
Google rating95
Review volume10
Review recency1
Profile completeness33
Review sentiment50
Verification0
Scores 0 to 100 per dimension. See how we rank.
11
GEM Diagnostic Center
45.6/ 100
3.73.7 out of 5 stars12 reviews
GRA, Onitsha 434106, Anambra, Nigeria
- Hours listed
Why ranked #11? ▾
Google rating60
Review volume37
Review recency69
Profile completeness0
Review sentiment50
Verification0
Scores 0 to 100 per dimension. See how we rank.
Recent reviews
MaryQueen U. ★★★★★ : Can I have a customer service line that I can talk to or message to ask questions? I can't find any in the bio
Ikechukwu M. ★★★★★ : Horrible experience. These clowns collect money and book MRI, only for them to say the machine is under maintenance. Very nonchalant bunch of incompetent people.
12
Crescent Diagnostics Laboratory Ltd
39.7/ 100
3.23.2 out of 5 stars18 reviews
6 Niger Drive, GRA, Onitsha, Anambra State, Nigeria., 6 Niger Dr, GRA, Onitsha 430261, Anambra, Nigeria
- Hours listed
Why ranked #12? ▾
Google rating35
Review volume43
Review recency59
Profile completeness33
Review sentiment50
Verification0
Scores 0 to 100 per dimension. See how we rank.
Recent reviews
Chisom A. ★★★★★ : Very poor services. Delay and nonchalant attitudes from staff. You guys can do better.
Ifeoma V. ★★★★★ : The lab is second to none. The staff & services are superb. Please you guys should keep it up
13
PRESTIGE DIAGNOSTICA
39.2/ 100
4.04.0 out of 5 stars1 reviews
No 27 Enugu road, All Saints Cathedral, opp. Red cross Miderless home, GRA, Onitsha 434106, Anambra, Nigeria
Why ranked #13? ▾
Google rating73
Review volume10
Review recency5
Profile completeness33
Review sentiment50
Verification0
Scores 0 to 100 per dimension. See how we rank.
14
Queens Laboratory
38.5/ 100
4.04.0 out of 5 stars1 reviews
129 Port Harcourt Rd, Fegge, Onitsha 434234, Anambra, Nigeria
- Hours listed
Why ranked #14? ▾
Google rating73
Review volume10
Review recency0
Profile completeness33
Review sentiment50
Verification0
Scores 0 to 100 per dimension. See how we rank.
Recent reviews
Chike P. ★★★★★ : Queens medical laboratory Fegge onitsha is a state of the art laboratory. They offer laboratory services with a well qualified Lab scientist. They keep a professional service ethics. Was there once and the services was good
15
Cimac Medical Diagnostic Limited
18.1/ 100
3.03.0 out of 5 stars1 reviews
4RF3+CC9, Ezeiweka Rd, Army Barracks, Onitsha 434243, Anambra, Nigeria
Why ranked #15? ▾
Google rating27
Review volume10
Review recency3
Profile completeness0
Review sentiment50
Verification0
Scores 0 to 100 per dimension. See how we rank.
16
AEON medical diagnostic center
49.3/ 100
5.05.0 out of 5 stars2 reviews
2 Erokwu Crescent, off Park Road, GRA, Onitsha 434106, Anambra, Nigeria
- Open 24 hours
Why ranked #16? ▾
Google rating95
Review volume16
Review recency8
Profile completeness33
Review sentiment50
Verification0
Scores 0 to 100 per dimension. See how we rank.
Recent reviews
Henry A. ★★★★★ : Great staff and top notch services
17
Onitsha Medical Diagnostic Centre
46.6/ 100
4.04.0 out of 5 stars4 reviews
26 Umunna Street, City Centre, Onitsha 430264, Anambra, Nigeria
- Hours listed
- modern facilities
- excellent services
- reliable results
Why ranked #17? ▾
Google rating73
Review volume23
Review recency1
Profile completeness67
Review sentiment65
Verification0
Scores 0 to 100 per dimension. See how we rank.
Recent reviews
Osita E. ★★★★★ : A very nice diagnostic centre with modern facilities. They offer an excellent services
18
Heda H Clinic and Diagnostic Center, Onitsha
43.7/ 100
5.05.0 out of 5 stars1 reviews
106 Port Harcourt Rd, Fegge, Onitsha 431105, Anambra, Nigeria
- Hours listed
- Open Sundays
Why ranked #18? ▾
Google rating95
Review volume10
Review recency1
Profile completeness0
Review sentiment50
Verification0
Scores 0 to 100 per dimension. See how we rank.

How to choose safely

What to check before choosing diagnostic centers in Onitsha

Rankings are a starting point. For this category, these are the checks that most often separate a useful recommendation from a risky one.

Verify care fit
Check specialties, emergency coverage, operating hours, and whether the facility handles your exact condition.
Check insurance and regulation
Confirm accepted HMOs, licences, and whether the listed phone line reaches the facility directly.
Read recent feedback
Prioritise recent reviews about wait times, staff responsiveness, cleanliness, and billing clarity.

What the data shows for diagnostic centers in Onitsha

Counted from every diagnostic centers ranked in Onitsha, Anambra State, not only the ones shown above.

Ranked: 18
With 5+ reviews: 5
Rated 4.5 or higher: 11
Median reviews: 1
Phone listed: 14 of 18
Opening hours listed: 15 of 18

5 of the 18 diagnostic centers ranked in Onitsha have five or more Google reviews, and between them they carry 83 reviews.

Of the 18, 11 score 4.5 or higher, 3 sit between 4.0 and 4.4 and 4 are below 4.0.

The median diagnostic centers here has 1 review.

EVO MEDICALS has the most, 21 at 5.0, followed by Crescent Diagnostics Laboratory Ltd (18) and GEM Diagnostic Center (12).

14 list a phone number, 3 a website and 15 opening hours; 1 has a photo on file.

Across the 23 Nigerian cities where Ranked publishes diagnostic centers, the median city lists 13; Onitsha has 18, more than the median.

The most recent Google review we hold for this set is from August 2026.

Source: Ranked directory database, counted at publish time. Full statistics.

Frequently asked questions

How many diagnostic centers are listed in Onitsha?

Ranked lists 18 diagnostic centers in Onitsha. The default view shows 18 local listings in ranking order.

Which local listing appears first in the default order?

EVO MEDICALS appears first, with a Google rating of 5.0 from 21 Google reviews. The order uses Ranked's published review-based method; it is not a measure of every aspect of the business.

Which local listing loaded on this page has the most Google reviews?

EVO MEDICALS has the most reported Google reviews among the 18 local listings loaded on this page: 21. Review volume is one ranking signal and does not establish service quality.

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What to check before choosing diagnostic centers in Onitsha

Verify care fit

Check insurance and regulation

Read recent feedback

What the data shows for diagnostic centers in Onitsha

Frequently asked questions

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