CallataGuidesBusiness phone system for medical laboratories in St. Louis, MO-IL
Medical laboratories in the St. Louis, MO-IL metro area: 178 establishments in 2023, the local area codes, and what phone service costs a 9-person team.
- Establishments
- 178CBP 2023
- Employees
- 1,639mid-March 2023
- Per 100k residents
- 6.3U.S. 4.9
- Rank
- 18th of 485areas by count
How many medical laboratories are in St. Louis, MO-IL?
There were 178 medical laboratories in the St. Louis, MO-IL metro area in 2023, according to Census County Business Patterns (NAICS 621511, Medical Laboratories). They employed 1,639 people in mid-March and paid $102.5 million in annual payroll. By establishment count the area is 18th out of 485 areas with published figures for medical laboratories.
Measured against its 2.8 million residents (2024 estimate), the area has 6.3 medical laboratories per 100,000 people; the U.S. rate is 4.9, so St. Louis, MO-IL is 29.4% above the national figure. The average establishment here has 9.2 employees, compared with 14.0 nationally. Payroll per employee comes to $62,549, 15.7% below the national $74,156.
| Measure | St. Louis, MO-IL | Missouri | United States |
|---|---|---|---|
| Establishments | 178 | 384 | 16,635 |
| Mid-March employees | 1,639 (moderate noise) | 2,843 (moderate noise) | 232,333 |
| Annual payroll | $102,517,000 (moderate noise) | $163,383,000 | $17,228,940,000 |
| Employees per establishment | 9.2 | 7.4 | 14.0 |
| Payroll per employee | $62,549 | $57,469 | $74,156 |
| Establishments per 100,000 residents | 6.3 | 6.1 | 4.9 |
Census County Business Patterns 2023 (mid-March employment; annual payroll). Employees and payroll flagged high-noise are shown but not used in the text. Residents: Census Vintage 2024 estimates.
How big medical laboratories in St. Louis, MO-IL are
Of the medical laboratories in St. Louis, MO-IL that had employees in March 2023, 69.1% had fewer than five (the U.S. share is 69.4%). 85.4% had fewer than ten. When a business has only a few people, whoever is free answers the phone, and calls that arrive while everyone is busy go to voicemail unless they are routed somewhere else.
| Employment size | Establishments | Share | U.S. share |
|---|---|---|---|
| 1–4 employees | 123 | 69.1% | 69.4% |
| 5–9 employees | 29 | 16.3% | 13.6% |
| 10–19 employees | 12 | 6.7% | 7.5% |
| 20–49 employees | 5 | 2.8% | 4.8% |
| 50 or more employees | 9 | 5.1% | 4.6% |
Employment-size classes count establishments by mid-March 2023 employment. Establishments with no March employees are excluded from the size classes, so shares are of establishments with employees. Source: Census County Business Patterns 2023.
What medical laboratories in St. Louis, MO-IL use the phone for
Labs answer calls from both patients and ordering providers, and the questions differ: hours and preparation instructions on one side, specimen and result status on the other. Routing those calls separately keeps both groups from waiting.
Calls a medical laboratory in St. Louis, MO-IL might handle in a typical week include:
- A provider calls to add a test to an existing order.
- A patient calls to ask whether fasting is required before a blood draw.
- A physician's office calls about a specimen status.
What medical laboratories text about
Labs use texting mainly for hours, location and preparation reminders.
Texts sent from a local business number in St. Louis, MO-IL have to be registered with carriers first (10DLC); on Callata that is a one-time $49 fee, after which the whole team can text from the shared number.
Phone system pricing for a 9-person medical laboratory
The average medical laboratory in St. Louis, MO-IL has 9.2 employees, so a 9-person team is a reasonable benchmark. Per-seat business phone plans bill every one of those people. At month-to-month list prices checked September 28, 2026, 9 users on RingCentral RingEX Core cost $270.00 a month and 9 on Ooma Office Pro cost $224.55. Callata comes to $179.00 a month for 9 users ($99 a month with 5 users included, then $20 per additional user), below both.
Over a year, that is $1,092 less than RingCentral for a medical laboratory in St. Louis, MO-IL of that size. Annual contracts lower some competitors' prices, so compare the plan you would actually sign.
| Provider (plan) | Pricing basis | Per month | Per year |
|---|---|---|---|
| Callata (Callata Office) | $99 incl. 5 users, $20 per extra user | $179.00 | $2,148.00 |
| Quo (Starter) | $19.00 per user | $171.00 | $2,052.00 |
| Nextiva (Core) | $23.00 per user | $207.00 | $2,484.00 |
| Ooma (Office Pro) | $24.95 per user | $224.55 | $2,694.60 |
| Dialpad (Standard) | $27.00 per user | $243.00 | $2,916.00 |
| RingCentral (RingEX Core) | $30.00 per user | $270.00 | $3,240.00 |
Competitor prices are each vendor's published month-to-month list price per user for its lowest plan that includes business calling and texting, checked September 28, 2026: Quo Starter $19, Nextiva Core $23, Ooma Office Pro $24.95 (Essentials excludes texting; one-time $29.95 activation not included), Dialpad Standard $27, RingCentral RingEX Core $30 ($20 billed annually). Prices exclude taxes and fees and may change; annual contracts lower some competitors' prices.
Local area codes for medical laboratories in St. Louis, MO-IL
NANPA records place the exchanges of the area's named cities and towns in 8 area codes. 314 has the most, with 723 of 1,483 exchanges (49%). A local number lets patients and providers in St. Louis, MO-IL call without dialing out of area. Callata includes up to 3 local numbers, and which numbers are open in an area code depends on carrier inventory when you choose.
| Area code | Exchanges | Time zone | In service since | Overlay with |
|---|---|---|---|---|
| 314 | 723 | Central | 1947 | 557 |
| 618 | 324 | Central | 1947 | 730 |
| 636 | 308 | Central | 1999 | none |
| 557 | 71 | Central | 2022 | 314 |
| 730 | 30 | Central | 2023 | 618 |
| 217 | 14 | Central | 1947 | 447 |
| 573 | 11 | Central | 1996 | 235 |
| 447 | 2 | Central | 2021 | 217 |
Exchanges are NANPA-assigned central office codes (NPA-NXX) in the rate centers matched to the area's named places. Source: NANPA utilized code and NPA reports.
How Callata works for medical laboratories
Callata is a business phone system priced at $99 a month with 5 users included, then $20 per additional user. Callata Office includes up to 3 local business numbers, unlimited inbound calling, 1,500 pooled outbound US and Canada minutes per user each month, a browser softphone that can also ring your cell, voicemail with transcription, call recording with AI summaries, business-hours routing and E911 on every number.
Porting a number you already use in St. Louis, MO-IL is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.
AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.
Practices that handle protected health information should review their own privacy obligations before recording calls, enabling AI summaries or texting appointment details, and keep clinical conversations out of text messages unless their policies allow it.
Frequently asked questions
How many medical laboratories are there in St. Louis, MO-IL?
Census County Business Patterns counted 178 medical laboratories in the St. Louis, MO-IL metro area in 2023. They employed 1,639 people in mid-March.
What does a business phone system cost for a 9-person medical laboratory?
At month-to-month list prices checked September 28, 2026, 9 users cost $270.00 a month on RingCentral RingEX Core and $224.55 on Ooma Office Pro. On Callata, $99 a month with 5 users included, then $20 per additional user, the same team pays $179.00.
What area code should a medical laboratory in St. Louis, MO-IL use?
Area code 314 has the most assigned exchanges among the area's named places, followed by 618 and 636. If you already have a local number, you can port it to Callata for free.
Can an AI receptionist answer calls for a medical laboratory?
Yes. Callata's optional AI agents can answer when the team is busy or closed, take a message, text, email or transfer the call. They disclose that they are AI and are billed from prepaid AI minutes at $0.25 per minute. Practices that handle protected health information should review their own privacy obligations before recording calls, enabling AI summaries or texting appointment details, and keep clinical conversations out of text messages unless their policies allow it.