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

Jon David Maher, MD

Individual provider Family Medicine Physician · NPI 1598769945

Jon David Maher, MD is registered under Family Practice in Cresco, Iowa. Graduated from University of Iowa, Rj & L Carver College of Medicine in 1989, 37 years ago. Practices with Regional Health Services of Howard County, a 26-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
37
Trained at
University of Iowa, Rj & L Carver College of Medicine
Licensed in
IA
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

321 8th Ave W
Cresco, IA 52136-1064
Phone: (563) 547-2022
Fax: (563) 547-4340
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1624 S Grand Ave, Charles City, IA 50616-3653 — (641) 228-5555

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 27683 (IA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 27683 (IA)

Record details

NPI number1598769945
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 13, 2005
Last updated in NPPESApril 6, 2026
Certification dateApril 6, 2026

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Also practisesENDOCRINOLOGY, HOSPICE/PALLIATIVE CARE
Medical schoolUNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice Regional Health Services Of Howard County — 26 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients31
Services billed 49 a service is one billed item, such as a visit, a test or a procedure
Average patient age79

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.

Practises at

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

Also affiliated with 1 nursing home, which CMS identifies by certification number only.

Colleagues at Regional Health Services of Howard County

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 26 clinicians in the practice; 12 are shown here.

Other providers in Cresco