Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mrs. Katherine Ann Lem, PA

Individual provider Medical Physician Assistant · NPI 1043441264

Mrs. Katherine Ann Lem, PA is a Physician Assistant in Ames, Iowa. Qualified in 2009, 17 years ago. Practices with McFarland Clinic PC, a 353-clinician group and accepts Medicare assignment.

Years since qualifying
17
In the registry since
2009
Specialties on file
2
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

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Practice location Address checks out

3600 Lincoln Way
Ames, IA 50014-7595
Phone: (515) 239-4492
Fax: (515) 663-4836
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X
Medical Physician Assistant Taxonomy 363AM0700X

Record details

NPI number1043441264
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA
Sole proprietorNo
NPI enumeratedAugust 5, 2009
Last updated in NPPESSeptember 11, 2025
Certification dateSeptember 11, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice McFarland Clinic Pc — 353 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients638
Services billed 3,115 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $91,013 42 payments
Travel and Lodging $6,671 41 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $1,495 45 payments · a meal or drink at a meeting or visit, not a fee
Education $198 2 payments · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at McFarland Clinic PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 353 clinicians in the practice; 12 are shown here.

Other providers in Ames