Doctor profile · Federal record

Dr. William Chase, MD

Family Medicine Physician (CMS: Family Practice) · Norwalk, IA

  • NPI 1841259504
  • Accepts Medicare
  • 26 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
801 Colonial Cir, Ste 200
Norwalk, IA 502119626
(515) 285-3200
fax (515) 285-3232
Mailing address
800 Colonial Cir, Suite 200
Norwalk, IA 502119616

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
August 15, 2012
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
Iowa #34287
Medicaid (2)
IA #1841259504 · IA #5215319

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841259504. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,849
Distinct HCPCS
10
Medicare allowed
$162,003
HCPCS Description Services Patients Avg allowed
36415 Insertion of needle into vein for collection of blood sample 556 295 $8
99214 Established patient office or other outpatient visit, 30-39 minutes 383 265 $119
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 317 89 $58
99213 Established patient office or other outpatient visit, 20-29 minutes 303 208 $84
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 217 217 $120
99454 Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days 186 42 $45
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg 143 16 $1
83036 Hemoglobin a1c level 113 76 $9
G0008 Administration of influenza virus vaccine 100 97 $29
90662 Influenza vaccine split virus, preservative free 97 94 $72

In context: peer comparison

Among 5 peers in this city , average services per provider: 93. This provider delivers 31× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,365
Patients
947
Total drug cost
$42,820
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 535 150 $6,674
Levothyroxine Sodium Generic 336 81 $4,735
Amlodipine Besylate Generic 297 81 $2,115
Metformin Hcl Generic 296 81 $2,746
Lisinopril Generic 270 78 $2,288
Simvastatin Generic 257 77 $2,683
Metoprolol Succinate Generic 221 63 $3,795
Omeprazole Generic 174 47 $2,525
Tamsulosin Hcl Generic 150 46 $4,602
Lisinopril-Hydrochlorothiazide (Lisinopril/Hydrochlorothiazide) Brand 147 44 $1,708

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. William Chase's medical specialty?
Dr. William Chase practices Family Medicine Physician in Norwalk, IA.
Where does Dr. William Chase practice?
Dr. William Chase practices at 801 Colonial Cir, Norwalk, IA 502119626. Office phone: 5152853200.
What is Dr. William Chase's NPI?
Dr. William Chase's National Provider Identifier (NPI) is 1841259504, issued by NPPES.
Does Dr. William Chase accept Medicare assignment?
Yes. Dr. William Chase accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Chase commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99214); Chronic care management services (HCPCS 99490). Source: CMS Medicare Physician & Other Practitioners file.