Dr. Nathan Rademaker , MD
Urology • Stillwater, OK
1201 S Adams St
Stillwater, OK 740745476
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on June 12, 2014; this date does not establish years in practice.
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Published CMS data list 4,100 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 81003 — Automated urinalysis test: 1,487 service units.
- 51798 — Ultrasound measurement of bladder capacity after voiding: 861 service units.
- 99214 — Established patient outpatient office visit: 586 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 20 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 2,032 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Tamsulosin Hcl — 583 prescription fills, including refills.
- Finasteride — 404 prescription fills, including refills.
- Myrbetriq (Mirabegron) — 143 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 23 records in the table · Guide: How to read Medicare Part D prescriber data
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Close to the middle for Medicare Part B services among clinicians listed under Urology in Oklahoma (2024, 104 clinicians with data). Median for this group: 3,116. Middle half: 991 to 12,364.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 2,591 in 2020 to 4,100 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
1201 S Adams St
Stillwater, OK 740745476
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Stillwater Medical Center Authority. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Texas A & M University System, Hsc, College Of Medicine
2014
What Public CMS Data Show
Urology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
719 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $229,591 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $170,899 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
30-day fills
4,363 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$209,527 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $772.03 across 29 records.
By nature of payment
- Food and Beverage: $736.97 across 28 records.
- Education: $35.06 across 1 record.
Reporting-company totals (3 largest of 20)
- Medtronic, Inc.: $93.57 across 3 records.
- Calyxo, Inc.: $84.10 across 1 record.
- Teleflex LLC: $71.74 across 3 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
12 years (graduated 2014)
CMS Doctors and Clinicians data list 2014 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2014
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Rademaker has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Rademaker as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Stillwater and Oklahoma
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Close to the middle for clinicians listed under Urology in Oklahoma (2024, 104 clinicians with data). Median for this group: 3,116. Middle half: 991 to 12,364.
Too few clinicians listed under Urology in Stillwater have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
Close to the middle for clinicians listed under Urology in Oklahoma (2024, 104 clinicians with data). Median for this group: $198,222. Middle half: $103,623 to $318,492.
Too few clinicians listed under Urology in Stillwater have Medicare Part B data for 2024 to compare.
Paid by Medicare
Close to the middle for clinicians listed under Urology in Oklahoma (2024, 104 clinicians with data). Median for this group: $147,333. Middle half: $76,063 to $239,733.
Too few clinicians listed under Urology in Stillwater have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
More Part D prescriptions than 70% of clinicians listed under Urology in Oklahoma (2024, 122 clinicians with data). Median for this group: 1,209. Middle half: 446 to 2,175.
Too few clinicians listed under Urology in Stillwater have Medicare Part D data for 2024 to compare.
Part D drug cost
Close to the middle for clinicians listed under Urology in Oklahoma (2024, 122 clinicians with data). Median for this group: $175,062. Middle half: $31,724 to $384,616.
Too few clinicians listed under Urology in Stillwater have Medicare Part D data for 2024 to compare.
3 active clinicians are listed under Urology with a practice address in Stillwater, OK (163 in Oklahoma).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 58% from 2,591 in 2020 to 4,100 in 2024.
- 2020: 2,591
- 2021: 6,132
- 2022: 3,309
- 2023: 3,857
- 2024: 4,100
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Medicare-allowed amount
Medicare-allowed amount increased 59% from $144,745 in 2020 to $229,591 in 2024.
- 2020: $144,745
- 2021: $215,784
- 2022: $210,702
- 2023: $228,431
- 2024: $229,591
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Paid by Medicare
Paid by Medicare increased 59% from $107,789 in 2020 to $170,899 in 2024.
- 2020: $107,789
- 2021: $159,297
- 2022: $152,949
- 2023: $168,686
- 2024: $170,899
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 103% from 1,000 in 2020 to 2,032 in 2024.
- 2020: 1,000
- 2021: 1,292
- 2022: 1,456
- 2023: 1,598
- 2024: 2,032
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30-day fills
30-day fills increased 109% from 2,084 in 2020 to 4,363 in 2024.
- 2020: 2,084
- 2021: 2,708
- 2022: 3,160
- 2023: 3,410
- 2024: 4,363
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Part D drug cost
Part D drug cost increased 143% from $86,222 in 2020 to $209,527 in 2024.
- 2020: $86,222
- 2021: $129,422
- 2022: $136,990
- 2023: $166,251
- 2024: $209,527
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $620.66 in 2021 to $772.03 in 2025.
- 2021: $620.66
- 2022: $652.01
- 2023: $422.66
- 2024: $1,004.84
- 2025: $772.03
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): 29 records totaling $772.03.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Calyxo, Inc. |
Food and Beverage
In-kind items and services
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CVAC ASPIRATION SYSTEM | General | $84.10 |
| Sumitomo Pharma America, Inc. |
Food and Beverage
In-kind items and services
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ORGOVYX | General | $54.71 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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INTERSTIM | General | $52.00 |
| Boston Scientific Corporation |
Food and Beverage
In-kind items and services
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Axonics | General | $40.85 |
| AstraZeneca Pharmaceuticals LP |
Education
In-kind items and services
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IMFINZI | General | $35.06 |
| IMMUNITYBIO, INC. |
Food and Beverage
In-kind items and services
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ANKTIVA | General | $32.33 |
| Myriad Genetic Laboratories, Inc. |
Food and Beverage
In-kind items and services
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PROLARIS | General | $28.55 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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XTANDI | General | $27.87 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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INTERSTIM | General | $27.29 |
| Teleflex LLC |
Food and Beverage
In-kind items and services
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BARRIGEL | General | $25.98 |
| CIVCO Medical Instruments |
Food and Beverage
Cash or cash equivalent
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— | General | $25.44 |
| Olympus America Inc. |
Food and Beverage
In-kind items and services
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iTIND System | General | $25.15 |
| Endo USA, Inc. |
Food and Beverage
In-kind items and services
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XIAFLEX | General | $23.00 |
| Teleflex LLC |
Food and Beverage
In-kind items and services
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BARRIGEL | General | $22.90 |
| Teleflex LLC |
Food and Beverage
In-kind items and services
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BARRIGEL | General | $22.86 |
| COLOPLAST CORP |
Food and Beverage
In-kind items and services
|
Titan | General | $22.82 |
| UROGEN PHARMA, INC. |
Food and Beverage
In-kind items and services
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JELMYTO | General | $22.57 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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LUPRON DEPOT | General | $22.03 |
| Ethicon Inc. |
Food and Beverage
In-kind items and services
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STRATAFIX | General | $20.34 |
| Boston Scientific Corporation |
Food and Beverage
In-kind items and services
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LithoVue | General | $20.22 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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LUPRON DEPOT | General | $16.87 |
| Endo USA, Inc. |
Food and Beverage
In-kind items and services
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XIAFLEX | General | $15.46 |
| ACCORD HEALTHCARE, INC. |
Food and Beverage
In-kind items and services
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Camcevi | General | $15.44 |
| Cook Medical LLC |
Food and Beverage
Cash or cash equivalent
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COOK | General | $15.39 |
| Olympus America Inc. |
Food and Beverage
In-kind items and services
|
iTIND System | General | $15.34 |
(top 25 shown)
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2018–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2019–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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81003
Automated urinalysis test
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1,487 | 681 | $12.00 | $2.20 |
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51798
Ultrasound measurement of bladder capacity after voiding
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861 | 525 | $55.00 | $10.20 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
586 | 365 | $250.00 | $122.41 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
541 | 424 | $175.00 | $86.49 |
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J9217
Leuprolide acetate (for depot suspension), 7.5 mg
|
156 | 16 | $795.00 | $173.07 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
|
129 | 129 | $320.00 | $159.91 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
|
86 | 73 | $345.00 | $173.08 |
|
52000
Diagnostic exam of bladder and urethra using an endoscope
|
61 | 47 | $465.00 | $219.83 |
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74018
X-ray of abdomen, 1 view
|
26 | 23 | $55.00 | $19.66 |
|
96402
Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle
|
26 | 16 | $82.00 | $31.84 |
|
51741
Electronic assessment of bladder emptying
|
17 | 17 | $35.00 | $8.37 |
|
99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
|
16 | 16 | $215.00 | $106.54 |
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99205
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more
|
16 | 16 | $425.00 | $211.73 |
|
52356
Crushing of stone of ureter with insertion of stent using an endoscope
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15 | 14 | $913.47 | $423.19 |
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55700
Biopsy of prostate gland
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14 | 14 | $505.00 | $124.73 |
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51784
Non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings
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13 | 13 | $260.00 | $30.44 |
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76872
Ultrasound scan of pelvic region through rectum
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13 | 13 | $367.00 | $98.84 |
|
76942
Ultrasonic guidance for needle placement
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13 | 13 | $114.00 | $29.22 |
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51729
Complex measurement of pressure of urine flow in bladder with urethra pressure and voiding pressure studies
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12 | 12 | $676.00 | $356.27 |
|
51797
Insertion of device into abdomen with pressure and urine flow rate study
|
12 | 12 | $260.00 | $174.06 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Tamsulosin Hcl | Tamsulosin Hcl | 583 | 45,233 | $9,689.13 | 179 |
| Finasteride | Finasteride | 404 | 33,200 | $7,061.35 | 122 |
| Myrbetriq | Mirabegron | 143 | 7,085 | $103,101.47 | 37 |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 118 | 4,115 | $2,920.84 | 74 |
| Cephalexin | Cephalexin | 99 | 6,082 | $982.04 | 40 |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 78 | 553 | $243.07 | 60 |
| Trospium Chloride Er | Trospium Chloride | 65 | 3,576 | $10,236.36 | 20 |
| Gemtesa | Vibegron | 65 | 3,420 | $52,326.00 | 22 |
| Estradiol | Estradiol | 60 | 5,009 | $3,325.77 | 40 |
| Alfuzosin Hcl Er | Alfuzosin Hcl | 55 | 3,810 | $1,151.68 | 13 |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 54 | 502 | $321.20 | 44 |
| Cefdinir | Cefdinir | 48 | 331 | $470.33 | 41 |
| Methenamine Hippurate | Methenamine Hippurate | 47 | 2,832 | $3,414.94 | 15 |
| Levofloxacin | Levofloxacin | 36 | 241 | $125.32 | 31 |
| Trospium Chloride | Trospium Chloride | 35 | 1,695 | $1,631.72 | — |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 27 | 108 | $83.89 | 24 |
| Fluconazole | Fluconazole | 25 | 57 | $78.69 | 18 |
| Fosfomycin Tromethamine | Fosfomycin Tromethamine | 23 | 980 | $5,793.54 | — |
| Tramadol Hcl | Tramadol Hcl | 19 | 67 | $11.12 | 15 |
| Solifenacin Succinate | Solifenacin Succinate | 15 | 1,302 | $2,171.41 | — |
| Megestrol Acetate | Megestrol Acetate | 11 | 330 | $118.49 | — |
| Acetic Acid | Acetic Acid | 11 | 176 | $287.91 | — |
| Potassium Citrate Er | Potassium Citrate | 11 | 990 | $3,981.08 | — |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2020-03-26NUCC Taxonomy Code: 208800000X
A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - UROLOGY
I20190827001835
OK
4183923667
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Stillwater Medical Center Authority
1201 S Adams St, Stillwater, OK 740745476
Phone: 4053773858
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Internal Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1201 S ADAMS ST, STILLWATER, OK 740745476 (Tel: 4057425300)
Registered at PO BOX 720006, NORMAN, OK 730704006 (Tel: 4057425300)
Urology (license number reported to NPPES: OK 30702)
NPI status registered as active in NPPES database
Registered at 920 STANTON L YOUNG BLVD, WP 3150, OKLAHOMA CITY, OK 731045036 (Tel: 4052716900)
Registered at 920 STANTON L YOUNG BLVD, WP 3150, OKLAHOMA CITY, OK 731045036 (Tel: 4052716900)
Recorded as NATHAN RADEMAKER, M.D.
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Urology Specialists in Stillwater
Healthcare providers in StillwaterMailing Address
Po Box 720006
Norman, OK 730704006
Phone: 4057425300