Doctor profile · Federal record
Dr. Jason Maasdam, O.D.
Optometrist (CMS: Optometry) · Knoxville, IA
- NPI 1922081678
- Accepts Medicare
- 28 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
100 S 5Th St
Knoxville, IA 501381712
(641) 842-3616
fax (641) 842-5453
Credentials & registration
- NPI registered
- November 2005 — 21 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1998 — 28 yrs since
- Specialty taxonomy
- 152W00000X — NUCC code
- State license (1)
- Iowa #02116
- Medicaid
- IA #2176891
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1922081678. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
817
Distinct HCPCS
10
Medicare allowed
$67,652
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
92014 |
Established patient complete exam of visual system | 348 | 347 | $118 | |
92250 |
Photography of the retina | 179 | 178 | $35 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 100 | 79 | $84 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 43 | 30 | $52 | |
92133 |
Imaging of optic nerve | 38 | 37 | $32 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 37 | 36 | $119 | |
92083 |
Exam of visual field with extended testing | 28 | 27 | $58 | |
92134 |
Imaging of retina | 19 | 18 | $37 | |
92285 |
Photography of content of eyes | 13 | 13 | $20 | |
92004 |
New patient complete exam of visual system | 12 | 12 | $140 |
In context: peer comparison
Among 1 peers in Knoxville Optometrist, average services per provider: 81. This provider delivers 10× the peer median.Open Payments
Industry payments received
All-time total
$38
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Tarsus Pharmaceuticals, INC. | 1 | $21.58 | |
| Oyster Point Pharma, INC. | 1 | $16.72 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
352
Patients
79
Total drug cost
$104,867
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Latanoprost | Generic | 109 | 41 | $2,452 |
| Restasis (Cyclosporine) | Brand | 51 | 19 | $67,751 |
| Timolol Maleate | Generic | 45 | 19 | $371 |
| Lumigan (Bimatoprost) | Brand | 32 | 0 | $13,326 |
| Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) | Brand | 24 | 0 | $764 |
| Brimonidine Tartrate-Timolol (Brimonidine Tartrate/Timolol) | Brand | 19 | 0 | $4,191 |
| Brimonidine Tartrate | Generic | 18 | 0 | $3,186 |
| Travoprost | Generic | 15 | 0 | $3,425 |
| Cyclosporine | Generic | 14 | 0 | $8,062 |
| Pilocarpine Hcl | Generic | 13 | 0 | $910 |
Frequently asked questions
What is Dr. Jason Maasdam's medical specialty?
Dr. Jason Maasdam practices Optometrist in Knoxville, IA.
Where does Dr. Jason Maasdam practice?
Dr. Jason Maasdam practices at 100 S 5Th St, Knoxville, IA 501381712. Office phone: 6418423616.
What is Dr. Jason Maasdam's NPI?
Dr. Jason Maasdam's National Provider Identifier (NPI) is 1922081678, issued by NPPES.
Does Dr. Jason Maasdam accept Medicare assignment?
Yes. Dr. Jason Maasdam accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jason Maasdam commonly perform?
Top Medicare-reported procedures in 2023: Established patient complete exam of visual system (HCPCS 92014); Photography of the retina (HCPCS 92250); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.