Ian Koontz, M.D.
NPI 1205805199 · Internal Medicine Physician · Dubuque, IA
Ian Koontz, M.D. is a Internal Medicine Physician provider in Dubuque, IA (NPI 1205805199).
Provider details
- NPI number
- 1205805199
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 27816 (IA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 14 |
| Famotidine | 14 |
| Lisinopril | 13 |
| Metoprolol Succinate | 12 |
| Pravastatin Sodium | 12 |
| Prednisone | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-14
- Last updated
- 2021-04-06
- Certified
- 2021-04-06
Frequently asked questions
- What is Ian Koontz's NPI number?
- Ian Koontz's National Provider Identifier (NPI) is 1205805199, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ian Koontz's specialty?
- Ian Koontz is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ian Koontz located?
- Ian Koontz's practice location on file with NPPES is 1515 Delhi St, Dubuque, IA 52001-6320.
- What is Ian Koontz's phone number?
- The practice phone number listed in the NPPES registry for Ian Koontz is (563) 557-9111.
- Is Ian Koontz's NPI active?
- Yes — Ian Koontz's NPI (1205805199) is active in the NPPES registry as of the last update on 2021-04-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.