Jean Hermsen, DO
NPI 1356540884 · Otolaryngology Physician · Ames, IA
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jean Hermsen, DO is a Otolaryngology Physician provider in Ames, IA (NPI 1356540884).
Provider details
- NPI number
- 1356540884
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 4309 (IA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
611 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Diagnostic Exam of Nasal Passages Using an Endoscope31231 | 103 | $168 |
| Diagnostic Exam of Voice Box Using a Flexible Endoscope31575 | 96 | $116 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 83 | $84 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 51 | $113 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 50 | $15 |
| Insertion of Needle Into Vein for Collection of Blood Sample |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Montelukast Sodium | 26 | — |
| Omeprazole | 25 | — |
| Prednisone | 18 | 11 |
| Ipratropium Bromide | 17 | — |
| Azelastine Hcl | 16 | — |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 15 | 15 |
| Amoxicillin | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-07-14
- Last updated
- 2020-11-13
- Certified
- 2020-11-13
Frequently asked questions
- What is Jean Hermsen's NPI number?
- Jean Hermsen's National Provider Identifier (NPI) is 1356540884, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jean Hermsen's specialty?
- Jean Hermsen is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Jean Hermsen located?
- Jean Hermsen's practice location on file with NPPES is 1215 Duff Avenue, Ames, IA 50010-3014.
- What is Jean Hermsen's phone number?
- The practice phone number listed in the NPPES registry for Jean Hermsen is (515) 239-4480.
- Does Jean Hermsen accept Medicare?
- Jean Hermsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jean Hermsen's NPI active?
- Yes — Jean Hermsen's NPI (1356540884) is active in the NPPES registry as of the last update on 2020-11-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.