Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mark Douglas Fish, DO

Individual provider Orthopaedic Surgery Physician · NPI 1548212368

Mark Douglas Fish, DO practises Orthopedic Surgery in Clive, Iowa. Qualified in 2001, 25 years ago. Practices with Knoxville Community Hospital Inc, a 35-clinician group and accepts Medicare assignment. Licensed in Iowa and Indiana.

Years since qualifying
25
Licensed in
IA, IN
In the registry since
2006
Specialties on file
5
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

12499 University Ave Ste 210
Clive, IA 50325-8288 Not confirmed with CMS for 13 years — call before visiting
Phone: (515) 440-2676
Fax: (515) 440-2677
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 3790 (IA)
Orthopaedic Surgery Physician Taxonomy 207X00000X · Licence 02003044A (IN)
Adult Reconstructive Orthopaedic Surgery Physician Taxonomy 207XS0114X · Licence 02003044A (IN)
Orthopaedic Foot and Ankle Surgery Physician Taxonomy 207XX0004X · Licence 02003044A (IN)
Sports Medicine (Orthopaedic Surgery) Physician Taxonomy 207XX0005X · Licence 02003044A (IN)

Record details

NPI number1548212368
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 17, 2006
Last updated in NPPESJanuary 23, 2013

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Group practice Knoxville Community Hospital Inc — 35 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Lower limb (leg) arthroscopy (minimally invasive joint repair) 15 times · 88th percentile
Upper limb (arm) arthroscopy (minimally invasive joint repair) 52 times · 87th percentile
Hip replacement 27 times · 73rd percentile
Knee replacement 40 times · 72nd percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients389
Services billed 2,081 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $538 5 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Knoxville Community Hospital Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 35 clinicians in the practice; 12 are shown here.

Other providers in Clive