Doctor profile · Federal record

Dr. Timothy Dettmer, M.D.

Otolaryngology Physician (CMS: Otolaryngology) · Mason City, IA

  • NPI 1275527111
  • 26 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
250 S Crescent Dr
Mason City, IA 504012926
(641) 494-5380
fax (641) 494-5381

Credentials & registration

NPPES · NUCC
NPI registered
September 2005 — 21 yrs on file
Profile last updated
January 9, 2024
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
207Y00000X — NUCC code
State license (1)
Iowa #35965

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1275527111. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,723
Distinct HCPCS
10
Medicare allowed
$142,892
HCPCS Description Services Patients Avg allowed
69210 Removal of impacted ear wax 269 194 $29
99213 Established patient office or other outpatient visit, 20-29 minutes 260 206 $62
31575 Diagnostic exam of voice box using a flexible endoscope 181 160 $61
69210 Removal of impacted ear wax 173 113 $42
99213 Established patient office or other outpatient visit, 20-29 minutes 121 95 $84
99214 Established patient office or other outpatient visit, 30-39 minutes 116 100 $91
99203 New patient office or other outpatient visit, 30-44 minutes 108 108 $77
99204 New patient office or other outpatient visit, 45-59 minutes 92 92 $124
31575 Diagnostic exam of voice box using a flexible endoscope 83 77 $116
99203 New patient office or other outpatient visit, 30-44 minutes 75 75 $102

In context: peer comparison

Among 2 peers in Mason City Otolaryngology Physician, average services per provider: 70. This provider delivers 25× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$281
Transactions
7
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Inspire Medical Systems, INC. 4 $207.52
Aerin Medical INC. 2 $55.26
Genzyme Corporation 1 $17.86

By nature of payment

Food and Beverage
$281

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
520
Patients
265
Total drug cost
$14,868
Drug Type Claims Patients Total cost
Ipratropium Bromide Generic 129 53 $5,674
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 77 67 $1,279
Azelastine Hcl Generic 71 12 $3,315
Mupirocin Generic 41 28 $241
Prednisone Generic 40 37 $100
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 35 33 $299
Omeprazole Generic 25 0 $254
Doxycycline Hyclate Generic 24 22 $678
Montelukast Sodium Generic 23 0 $319
Ondansetron Odt (Ondansetron) Brand 19 0 $535

Frequently asked questions

Auto-generated from federal data
What is Dr. Timothy Dettmer's medical specialty?
Dr. Timothy Dettmer practices Otolaryngology Physician in Mason City, IA.
Where does Dr. Timothy Dettmer practice?
Dr. Timothy Dettmer practices at 250 S Crescent Dr, Mason City, IA 504012926. Office phone: 6414945380.
What is Dr. Timothy Dettmer's NPI?
Dr. Timothy Dettmer's National Provider Identifier (NPI) is 1275527111, issued by NPPES.
Does Dr. Timothy Dettmer accept Medicare assignment?
Dr. Timothy Dettmer does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Timothy Dettmer commonly perform?
Top Medicare-reported procedures in 2023: Removal of impacted ear wax (HCPCS 69210); Established patient office or other outpatient visit (HCPCS 99213); Diagnostic exam of voice box using a flexible endoscope (HCPCS 31575). Source: CMS Medicare Physician & Other Practitioners file.