MRS. KATHERINE ANN LEM (P.A.) – Physician Assistant, NPI 1043441264
Physician Assistant
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Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
1,648 PHYSICIAN ASSISTANT in IA
Provider Addresses for MRS. KATHERINE ANN LEM (P.A.)
6000 UNIVERSITY AVE STE 350
WEST DES MOINES, IA 502668294
Phone: (515) 226-8484
Fax: (515) 226-8487
Type: Mailing
3600 LINCOLN WAY
AMES, IA 500147595
Phone: (515) 239-4492
Fax: (515) 663-4836
Type: Location
1215 DUFF AVE
AMES, IA 500105469
Phone: (515) 239-4492
Fax: (515) 663-4836
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 141 Open Payments records for all available years, with a total value of $97,421.
Total Amount is formed as General ($97,421) + Research ($0) + Ownership ($0) = $97,421.
Last reported payment date: 2024-12-11 • Largest payer in this snapshot: Janssen Biotech, Inc. ($97,374).
Total Amount
$97,421
General + Research + Ownership
Payments
141
Total payment records
General Amount
$97,421
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-11
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Janssen Biotech, Inc. | $97,374 |
| PFIZER INC. | $31 |
| E.R. Squibb & Sons, L.L.C. | $17 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2009-08-28
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20090828000340 | I | Physician Assistant | IA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 17003 | Destruction of precancer skin growth, 2-14 growths | 941 | 195 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 579 | 476 | $0 |
| 17000 | Destruction of precancer skin growth, 1 growth | 346 | 279 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 270 | 223 | $0 |
| 11102 | Biopsy of related skin growth, first growth | 236 | 207 | $0 |
Insurance plans in this area (ZIP 50266)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| H E M A T O L O G Y/ O N C O L O G Y | IA | |
| - | IA | |
| - | IA | |
| - | IA | |
| Internal Medicine | IA | |
| - | IA | |
| - | IA | |
| - | IA | |
| Family Practice | IA | |
| R H E U M A T O L O G Y | IA |
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