Timothy Dettmer, M.D.
NPI 1275527111 · Otolaryngology Physician · Mason City, IA
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Dettmer, M.D. is a Otolaryngology Physician provider in Mason City, IA (NPI 1275527111).
Provider details
- NPI number
- 1275527111
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 35965 (IA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,677 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 282 | $61 |
| Removal of Impacted Ear Wax69210 | 243 | $27 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 164 | $83 |
| Diagnostic Exam of Voice Box Using a Flexible Endoscope31575 | 163 | $62 |
| Removal of Impacted Ear Wax69210 | 163 | $41 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 121 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ipratropium Bromide | 134 | 45 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 78 | 70 |
| Azelastine Hcl | 61 | — |
| Fluticasone Propionate | 45 | 13 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 31 | 31 |
| Mupirocin | 29 | 21 |
| Prednisone | 28 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$281 across 7 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-07
- Last updated
- 2024-01-09
- Certified
- 2024-01-09
Frequently asked questions
- What is Timothy Dettmer's NPI number?
- Timothy Dettmer's National Provider Identifier (NPI) is 1275527111, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Dettmer's specialty?
- Timothy Dettmer is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Dettmer located?
- Timothy Dettmer's practice location on file with NPPES is 250 S Crescent Dr, Mason City, IA 50401-2926.
- What is Timothy Dettmer's phone number?
- The practice phone number listed in the NPPES registry for Timothy Dettmer is (641) 494-5380.
- Does Timothy Dettmer accept Medicare?
- Timothy Dettmer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Dettmer's NPI active?
- Yes — Timothy Dettmer's NPI (1275527111) is active in the NPPES registry as of the last update on 2024-01-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.