Christian Clark, M.D.
How we got $2.4M
Based on typical figures for its industry (2022 Economic Census), not its own records.
What we know
Signs of a sale Likely to sell
- In business 27 years (since 1999)
- Founder still runs it after 27 years
From public records and the company's website, not a statement that it's for sale.
What they do
Christian Clark, M.D. is a gastroenterologist with Adult Gastroenterology Associates, offering endoscopy, GI and liver care. The page lists offices in Tulsa and Vinita, Oklahoma.
From the company's website. Industry: Doctors & clinics.
Compared with similar businesses nearby
| Business | Est. revenue | Distance |
|---|---|---|
| Christian Clark, M.D. this business | $3.0M | — |
| Patrick R. Volak, M.D. Tulsa | $1.5M | 0.0 mi |
| Paul D. Stanton, M.D. Tulsa | $1.5M | 0.0 mi |
| Aatish M. Patel, M.D. Tulsa | $3.0M | 0.0 mi |
| Brandon A. Conkling, D.O. Tulsa | $1.5M | 0.0 mi |
| Kevin McNamara, M.D. Tulsa | $3.0M | 0.0 mi |
| Matt Blankenship, M.D. Tulsa | $1.5M | 0.0 mi |
The full calculation
Figures are shown toward the upper part of their range rather than at its middle.
Brought up to date assuming revenue has grown 8% a year since 2020, when the PPP figures were reported; included above.
| Estimated value = EBITDA × typical sale multiple | $2.4M |
| Multiple for this size and industry | 4.1× |
| Value range | $671K – $3.7M |
This business has no PPP loan on record, so there is no business-specific data. The figures are the typical estimated revenue of Offices of Physicians businesses in our Oklahoma data: the middle value, with the range covering the middle half of those businesses. EBITDA applies the industry margin (19%). Treat these as a rough guide.
| Revenue range | $1.1M – $3.9M |
| EBITDA range | $205K – $761K |
| Industry (NAICS) | Offices of Physicians (6211) |
EBITDA margin: from IRS tax returns of S corporations in this industry (2019–2022), adjusted for company size: smaller companies typically run higher margins. EBITDA here is after owners' salaries.
Benchmarks: US Economic Census 2022, OK. These are statistical estimates, not reported financials. Listing details come from Overture Maps open data. Full methodology
2 locations
| 4200 E Skelly Dr Ste 700 | Tulsa | This listing |
| 735 N Foreman St | Vinita | View |
Revenue, profit and value are for the whole company.
Public records
Matched to this business by name and address from public government data; a match can occasionally be wrong.
About Christian Clark, M.D.
Christian Clark, M.D. is a doctors & clinics company in Tulsa, Oklahoma, in business since 1999. It is owned by Nicholas Mamalis (Founder). Its estimated annual revenue is about $3.0M, with roughly $593K of EBITDA. Its estimated business value is $2.4M (likely range $671K–$3.7M). It has 2 locations.
Common questions
- Who owns Christian Clark, M.D.?
- Christian Clark, M.D. is owned by Nicholas Mamalis (Founder), according to public sources such as the company's website or filings.
- How much revenue does Christian Clark, M.D. make?
- SeeBITDA estimates Christian Clark, M.D.'s annual revenue at about $3.0M (likely between $1.1M and $3.9M), based on public records such as its PPP loan and retirement-plan filings, brought up to 2026.
- What is Christian Clark, M.D. worth?
- About $2.4M, roughly 4.1× its estimated EBITDA of $593K, typical for a doctors & clinics company its size. Likely range: $671K–$3.7M.
- When was Christian Clark, M.D. founded?
- Christian Clark, M.D. has been in business since 1999.
- Is Christian Clark, M.D. for sale?
- There's no public listing, but it shows signs that often come before a sale: in business 27 years (since 1999); founder still runs it after 27 years.