Doctor profile · Federal record

Dr. Mary Ann Amend, ARNP

Nurse Practitioner · Waterloo, IA

  • NPI 1659312254
  • Accepts Medicare
  • 23 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
146 W Dale St Ste 201
Waterloo, IA 507031901
(319) 226-9888
fax (319) 226-9889

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
August 18, 2020
Year of graduation
2003 — 23 yrs since
Specialty taxonomy
363L00000X — NUCC code
State license (1)
Iowa #074072
Medicaid
IA #1659312254

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1659312254. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
185
Distinct HCPCS
3
Medicare allowed
$14,484
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 134 111 $71
99203 New patient office or other outpatient visit, 30-44 minutes 38 38 $88
63047 Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment 13 13 $123

In context: peer comparison

Among 43 peers in this city , average services per provider: 355. This provider delivers 0.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$247
Transactions
3
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Novo Nordisk Inc 1 $123.45
Merck Sharp & Dohme LLC 1 $83.17
Abbott Laboratories 1 $40.12

By nature of payment

Food and Beverage
$247

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
115
Patients
90
Total drug cost
$1,415
Drug Type Claims Patients Total cost
Tizanidine Hcl Generic 59 44 $449
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 56 46 $967

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Ann Amend's medical specialty?
Dr. Mary Ann Amend practices Nurse Practitioner in Waterloo, IA.
Where does Dr. Mary Ann Amend practice?
Dr. Mary Ann Amend practices at 146 W Dale St Ste 201, Waterloo, IA 507031901. Office phone: 3192269888.
What is Dr. Mary Ann Amend's NPI?
Dr. Mary Ann Amend's National Provider Identifier (NPI) is 1659312254, issued by NPPES.
Does Dr. Mary Ann Amend accept Medicare assignment?
Yes. Dr. Mary Ann Amend accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Ann Amend 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); Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment (HCPCS 63047). Source: CMS Medicare Physician & Other Practitioners file.