Henry Diggelmann, M.D.
NPI 1467610196 · Otolaryngology Physician · Mason City, IA
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Henry Diggelmann, M.D. is a Otolaryngology Physician provider in Mason City, IA (NPI 1467610196).
Provider details
- NPI number
- 1467610196
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD40670 (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
18 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
1,416 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 | 238 | $61 |
| Removal of Impacted Ear Wax69210 | 219 | $28 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 106 | $75 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 95 | $83 |
| Removal of Impacted Ear Wax69210 | 86 | $42 |
| Diagnostic Exam of Voice Box Using a Flexible Endoscope31575 | 85 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Mupirocin | 72 | 47 |
| Fluticasone Propionate | 62 | 19 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 47 | 43 |
| Cephalexin | 32 | 32 |
| Clindamycin Hcl | 31 | 25 |
| Ofloxacin | 31 | 24 |
| Prednisone | 18 | 17 |
| Levothyroxine Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$35 across 2 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
- 2008-05-29
- Last updated
- 2024-01-09
- Certified
- 2024-01-09
Frequently asked questions
- What is Henry Diggelmann's NPI number?
- Henry Diggelmann's National Provider Identifier (NPI) is 1467610196, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Henry Diggelmann's specialty?
- Henry Diggelmann is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Henry Diggelmann located?
- Henry Diggelmann's practice location on file with NPPES is 250 S Crescent Dr, Mason City, IA 50401-2926.
- What is Henry Diggelmann's phone number?
- The practice phone number listed in the NPPES registry for Henry Diggelmann is (641) 494-5380.
- Does Henry Diggelmann accept Medicare?
- Henry Diggelmann is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Henry Diggelmann's NPI active?
- Yes — Henry Diggelmann's NPI (1467610196) 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.