Marissa Rae Hendriksen , PA-C
Physician Assistant โข Waukee, IA
950 E Hickman Rd
Waukee, IA 502638866
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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Marissa Hendriksen is listed in NPPES under Physician Assistant.
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NPI assigned on April 22, 2022; this date does not establish years in practice.
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Published CMS data list 681 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99213 โ Established patient outpatient office visit: 259 service units.
- 99214 โ Established patient outpatient office visit: 86 service units.
- 81003 โ Automated urinalysis test: 52 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ 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 13 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 390 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Prednisone โ 79 prescription fills, including refills.
- Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) โ 70 prescription fills, including refills.
- Cephalexin โ 66 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 13 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 70% of clinicians listed under Physician Assistant in Iowa (2024, 816 clinicians with data). Median for this group: 298. Middle half: 123 to 703.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 108 in 2023 to 681 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023โ2024.
Practice Location & Contact Primary Location
950 E Hickman Rd
Waukee, IA 502638866
CMS Doctors and Clinicians lists 2 distinct group names: Grinnell Regional Medical Center; Iowa Physicians Clinic Medical Foundation. 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
Des Moines University Of Osteopathic Medicine And Health Sciences
2023
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
358 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 โ by Provider, 2024.
Medicare-allowed amount
About $33,838 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 โ by Provider and Service, 2024.
Paid by Medicare
About $23,628 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 โ by Provider and Service, 2024.
30-day fills
391 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
$2,263 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 โ by Provider and Drug, 2024.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2021โ2025.
Years since graduation
3 years (graduated 2023)
CMS Doctors and Clinicians data list 2023 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
2022
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, โDoes your provider accept Medicare as full payment?โ
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)
Marissa Hendriksen 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 Marissa Hendriksen 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 Waukee and Iowa
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 70% of clinicians listed under Physician Assistant in Iowa (2024, 816 clinicians with data). Median for this group: 298. Middle half: 123 to 703.
Too few clinicians listed under Physician Assistant in Waukee have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 70% of clinicians listed under Physician Assistant in Iowa (2024, 816 clinicians with data). Median for this group: $19,026. Middle half: $8,646 to $37,827.
Too few clinicians listed under Physician Assistant in Waukee have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 65% of clinicians listed under Physician Assistant in Iowa (2024, 816 clinicians with data). Median for this group: $13,777. Middle half: $6,384 to $27,709.
Too few clinicians listed under Physician Assistant in Waukee have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
Close to the middle for clinicians listed under Physician Assistant in Iowa (2024, 934 clinicians with data). Median for this group: 305. Middle half: 94 to 1,210.
Too few clinicians listed under Physician Assistant in Waukee have Medicare Part D data for 2024 to compare.
Part D drug cost
Close to the middle for clinicians listed under Physician Assistant in Iowa (2024, 934 clinicians with data). Median for this group: $4,784. Middle half: $711 to $109,573.
Too few clinicians listed under Physician Assistant in Waukee have Medicare Part D data for 2024 to compare.
9 active clinicians are listed under Physician Assistant with a practice address in Waukee, IA (1,525 in Iowa).
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 531% from 108 in 2023 to 681 in 2024.
- 2023: 108
- 2024: 681
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Medicare-allowed amount
Medicare-allowed amount increased 378% from $7,081 in 2023 to $33,838 in 2024.
- 2023: $7,081
- 2024: $33,838
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Paid by Medicare
Paid by Medicare increased 326% from $5,550 in 2023 to $23,628 in 2024.
- 2023: $5,550
- 2024: $23,628
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 954% from 37 in 2023 to 390 in 2024.
- 2023: 37
- 2024: 390
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30-day fills
30-day fills increased 958% from 37 in 2023 to 391 in 2024.
- 2023: 37
- 2024: 391
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Part D drug cost
Part D drug cost went from $210 in 2023 to $2,263 in 2024.
- 2023: $210
- 2024: $2,263
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2022โ2023 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 โ by Provider and Service data, 2023โ2024; 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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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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259 | 241 | $169.17 | $70.92 |
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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
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86 | 84 | $238.47 | $100.62 |
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81003
Automated urinalysis test
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52 | 48 | $6.00 | $2.20 |
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71046
X-ray of chest, 2 views
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44 | 42 | $52.43 | $20.76 |
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87428
Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza
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42 | 41 | $223.43 | $68.88 |
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J1885
Injection, ketorolac tromethamine, per 15 mg
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37 | 20 | $2.00 | $0.64 |
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36415
Insertion of needle into vein for collection of blood sample
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34 | 34 | $9.00 | $8.65 |
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85025
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
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32 | 32 | $20.00 | $7.61 |
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96372
Injection of drug or substance under skin or into muscle
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30 | 28 | $55.90 | $11.21 |
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87880
Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)
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23 | 23 | $42.00 | $16.20 |
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99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
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16 | 16 | $231.00 | $87.42 |
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93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
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14 | 14 | $44.71 | $11.08 |
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94640
Inhalation treatment for airway obstruction or sputum production
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12 | 12 | $44.75 | $5.96 |
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 |
|---|---|---|---|---|---|
| Prednisone | Prednisone | 79 | 535 | $126.77 | 77 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 70 | 527 | $486.28 | 70 |
| Cephalexin | Cephalexin | 66 | 445 | $219.02 | 64 |
| Doxycycline Hyclate | Doxycycline Hyclate | 36 | 249 | $219.15 | 34 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 24 | 449 | $512.19 | 24 |
| Azithromycin | Azithromycin | 21 | 106 | $95.73 | 21 |
| Diclofenac Sodium | Diclofenac Sodium | 19 | 432 | $108.44 | 18 |
| Paxlovid | Nirmatrelvir/Ritonavir | 15 | 75 | $0.00 | 15 |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 14 | 70 | $100.95 | 13 |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 13 | 234 | $58.10 | 12 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 11 | 95 | $49.15 | 11 |
| Fluticasone Propionate | Fluticasone Propionate | 11 | 360 | $124.19 | โ |
| Cefdinir | Cefdinir | 11 | 90 | $163.48 | 11 |
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: 2025-09-05NUCC Taxonomy Code: 363A00000X
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
NUCC Taxonomy Code: 390200000X
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20230816004222
IA
8224490610
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
Iowa Physicians Clinic Medical Foundation
2103 Ingersoll Ave, Des Moines, IA 503125227
Iowa Physicians Clinic Medical Foundation
4480 Utica Ridge Rd, Bettendorf, IA 527221644
Iowa Physicians Clinic Medical Foundation
5200 100th St, Urbandale, IA 503227208
Phone: 5152513880
Grinnell Regional Medical Center
202 4th Ave, Grinnell, IA 501121898
Phone: 6412362925
Iowa Physicians Clinic Medical Foundation
2720 8th St Sw, Altoona, IA 500091028
Phone: 5159670133
Iowa Physicians Clinic Medical Foundation
1152 Se Ashworth Rd, Waukee, IA 502638843
Phone: 5152642200
Grinnell Regional Medical Center
210 4th Ave, Grinnell, IA 501121898
Phone: 6412367511
Iowa Physicians Clinic Medical Foundation
4480 Utica Ridge Rd, Bettendorf, IA 527221637
Phone: 5637425950
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 950 E HICKMAN RD, WAUKEE, IA 502638866 (Tel: 5159878256)
Registered at 950 E HICKMAN RD, WAUKEE, IA 502638866 (Tel: 5159878256)
Recorded as MARISSA HENDRIKSEN, PA-C
Physician Assistant (license number reported to NPPES: IA 121500)
Registered at 2720 8TH ST SW, ALTOONA, IA 500091050 (Tel: 5159573661)
Registered at 2720 8TH ST SW, ALTOONA, IA 500091050
NPI status registered as active in NPPES database
Registered at 3200 GRAND AVE, DES MOINES, IA 503124104 (Tel: 5152711569)
Registered at 6811 JAKE BARNES CT, JOHNSTON, IA 501312977 (Tel: 8018243106)
Recorded as MARISSA STRONG
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Waukee
- Julia Nguyen, PA-C
- Sonya Mack, PA-C
- Kirby Singleton, PA-C
- Taylor Kells, PA-C
- William Andrews, PA
- Alyssa Heathman, PA
Mailing Address
950 E Hickman Rd
Waukee, IA 502638866
Phone: 5159878256