Jon Maher, M.D.
NPI 1598769945 · Family Medicine Physician · Cresco, IA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jon Maher, M.D. is a Family Medicine Physician provider in Cresco, IA (NPI 1598769945).
Provider details
- NPI number
- 1598769945
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 27683 (IA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
21 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 92 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 372 | 96 |
| Warfarin Sodium | 192 | 21 |
| Lisinopril | 177 | 47 |
| Metoprolol Succinate | 143 | 44 |
| Levothyroxine Sodium | 142 | 40 |
| Metoprolol Tartrate | 135 | 26 |
| Furosemide | 122 |
Practice location
Mailing address
Additional practice locations (1)
- 1624 S Grand AveCharles City, IA 50616-3653Phone: (641) 228-5555Fax: (641) 228-5556
Registry dates
- Enumerated
- 2005-06-13
- Last updated
- 2026-04-06
- Certified
- 2026-04-06
Frequently asked questions
- What is Jon Maher's NPI number?
- Jon Maher's National Provider Identifier (NPI) is 1598769945, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jon Maher's specialty?
- Jon Maher is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jon Maher located?
- Jon Maher's practice location on file with NPPES is 321 8th Ave W, Cresco, IA 52136-1064.
- What is Jon Maher's phone number?
- The practice phone number listed in the NPPES registry for Jon Maher is (563) 547-2022.
- Does Jon Maher accept Medicare?
- Jon Maher is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jon Maher's NPI active?
- Yes — Jon Maher's NPI (1598769945) is active in the NPPES registry as of the last update on 2026-04-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.