Doctor profile · Federal record

Dr. Lidia Wiersum

Gerontology Nurse Practitioner (CMS: Nurse Practitioner) · Issaquah, WA

  • NPI 1558605071
  • Accepts Medicare
  • 14 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 4 locations .

NPPES Updated May 11, 2026
Primary practice
2445 270Th Ave Se
Issaquah, WA 980297901
(262) 748-5588
Additional location
19401 40Th Ave W Ste 230
Lynnwood, WA 980365675
(425) 744-7153
fax (425) 744-7123
Additional location
747 Broadway # Wwa11B
Seattle, WA 981224379
(206) 320-3417
fax (206) 320-7195
Show 1 more location
Additional location
800 5Th Ave Ste 600
Seattle, WA 981043186
(206) 317-1956
fax (206) 320-7195

Credentials & registration

NPPES · NUCC
NPI registered
November 2012 — 14 yrs on file
Profile last updated
October 9, 2020
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
363LG0600X — NUCC code
State license (1)
Washington #AP60321256

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1558605071. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
252
Distinct HCPCS
4
Medicare allowed
$45,183
HCPCS Description Services Patients Avg allowed
99496 Transitional care management services for problem of high complexity 72 66 $265
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 64 64 $123
99214 Established patient office or other outpatient visit, 30-39 minutes 60 59 $121
99495 Transitional care management services for problem of at least moderate complexity 56 56 $196

In context: peer comparison

Among 1 peers in Issaquah Gerontology Nurse Practitioner, average services per provider: 63. This provider delivers 4.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
295
Patients
176
Total drug cost
$13,263
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 100 76 $511
Losartan Potassium Generic 37 27 $250
Lisinopril Generic 35 27 $207
Metformin Hcl Generic 28 13 $176
Metformin Hcl ER (Metformin Hcl) Brand 20 19 $82
Amlodipine Besylate Generic 18 0 $120
Rosuvastatin Calcium Generic 17 14 $125
Eliquis (Apixaban) Brand 16 0 $11,572
Hydrochlorothiazide Generic 12 0 $27
Levothyroxine Sodium Generic 12 0 $193

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Lidia Wiersum's medical specialty?
Dr. Lidia Wiersum practices Gerontology Nurse Practitioner in Issaquah, WA.
Where does Dr. Lidia Wiersum practice?
Dr. Lidia Wiersum practices at 2445 270Th Ave Se, Issaquah, WA 980297901. Office phone: 2627485588.
What is Dr. Lidia Wiersum's NPI?
Dr. Lidia Wiersum's National Provider Identifier (NPI) is 1558605071, issued by NPPES.
Does Dr. Lidia Wiersum accept Medicare assignment?
Yes. Dr. Lidia Wiersum accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Lidia Wiersum commonly perform?
Top Medicare-reported procedures in 2023: Transitional care management services for problem of high complexity (HCPCS 99496); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.