Doctor profile · Federal record

Dr. Margaret van Liew, NP

Family Nurse Practitioner (CMS: Nurse Practitioner) · Glendale, AZ

  • NPI 1437709573
  • Accepts Medicare
  • MIPS 89.1 / 100 · 2023
  • 7 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
16390 N 59Th Ave Ste 200
Glendale, AZ 853061711
(623) 334-4000
Mailing address
13430 N Scottsdale RD Ste 200
Scottsdale, AZ 852544058

Credentials & registration

NPPES · NUCC
NPI registered
September 2019 — 7 yrs on file
Profile last updated
November 17, 2021
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State license (1)
Arizona #232196

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1437709573. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
256
Distinct HCPCS
6
Medicare allowed
$16,777
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 108 107 $74
99203 New patient office or other outpatient visit, 30-44 minutes 81 81 $92
81003 Automated urinalysis test 24 23 $2
71046 X-ray of chest, 2 views 17 17 $26
99212 Established patient office or other outpatient visit, 10-19 minutes 15 15 $47
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) 11 11 $16

In context: peer comparison

Among 44 peers in this city , average services per provider: 70. This provider delivers 3.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
224
Patients
223
Total drug cost
$2,033
Drug Type Claims Patients Total cost
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 46 46 $308
Azithromycin Generic 42 42 $200
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 21 21 $567
Cephalexin Generic 21 21 $117
Methylprednisolone Generic 21 21 $185
Doxycycline Monohydrate Generic 20 19 $137
Amoxicillin Generic 16 16 $43
Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) Brand 14 14 $182
Ibuprofen Generic 12 12 $49
Cefdinir Generic 11 11 $246

Frequently asked questions

Auto-generated from federal data
What is Dr. Margaret van Liew's medical specialty?
Dr. Margaret van Liew practices Family Nurse Practitioner in Glendale, AZ.
Where does Dr. Margaret van Liew practice?
Dr. Margaret van Liew practices at 16390 N 59Th Ave Ste 200, Glendale, AZ 853061711. Office phone: 6233344000.
What is Dr. Margaret van Liew's NPI?
Dr. Margaret van Liew's National Provider Identifier (NPI) is 1437709573, issued by NPPES.
Does Dr. Margaret van Liew accept Medicare assignment?
Yes. Dr. Margaret van Liew accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margaret van Liew commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99203); Automated urinalysis test (HCPCS 81003). Source: CMS Medicare Physician & Other Practitioners file.