Catherine Arend
NPI 1538600820 · Family Nurse Practitioner · Crystal Lake, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Arend is a Family Nurse Practitioner provider in Crystal Lake, IL (NPI 1538600820).
Provider details
- NPI number
- 1538600820
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 209015386 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,118 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 1,015 | $101 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 58 | $101 |
| Residence Visit for New Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 60 Minutes99344 | 45 | $112 |
Typical Medicare-allowed amounts for these services range $101–$112 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 99 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 435 | 39 |
| Levothyroxine Sodium | 303 | 33 |
| Potassium Chloride | 292 | 28 |
| Furosemide | 283 | 34 |
| Escitalopram Oxalate | 218 | 15 |
| Lisinopril | 194 | 19 |
| Donepezil Hcl | 189 | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-03-20
- Last updated
- 2017-03-20
Frequently asked questions
- What is Catherine Arend's NPI number?
- Catherine Arend's National Provider Identifier (NPI) is 1538600820, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Arend's specialty?
- Catherine Arend is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Catherine Arend located?
- Catherine Arend's practice location on file with NPPES is 741 S Mchenry Ave, Crystal Lake, IL 60014-7445.
- What is Catherine Arend's phone number?
- The practice phone number listed in the NPPES registry for Catherine Arend is (815) 477-8844.
- Does Catherine Arend accept Medicare?
- Catherine Arend is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Arend's NPI active?
- Yes — Catherine Arend's NPI (1538600820) is active in the NPPES registry as of the last update on 2017-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.