Doctor profile · Federal record

Dr. Lily Cotter, DO

Hospitalist Physician (CMS: Internal Medicine) · Internal Medicine Physician · Sun City, AZ

  • NPI 1598385320
  • Accepts Medicare
  • 6 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
10401 W Thunderbird Blvd
Sun City, AZ 853513004
(623) 832-4728

Credentials & registration

NPPES · NUCC
NPI registered
April 2020 — 6 yrs on file
Profile last updated
July 24, 2023
Year of graduation
2020 — 6 yrs since
Specialty taxonomy
208M00000X — NUCC code
State license (1)
Arizona #010081

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1598385320. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
168
Distinct HCPCS
3
Medicare allowed
$19,621
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 123 42 $112
99239 Hospital discharge day management, more than 30 minutes 30 30 $111
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 15 15 $168

In context: peer comparison

Among 15 peers in Sun City Hospitalist Physician, average services per provider: 112. This provider delivers 1.5× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Lily Cotter's medical specialty?
Dr. Lily Cotter practices Hospitalist Physician in Sun City, AZ.
Where does Dr. Lily Cotter practice?
Dr. Lily Cotter practices at 10401 W Thunderbird Blvd, Sun City, AZ 853513004. Office phone: 6238324728.
What is Dr. Lily Cotter's NPI?
Dr. Lily Cotter's National Provider Identifier (NPI) is 1598385320, issued by NPPES.
Does Dr. Lily Cotter accept Medicare assignment?
Yes. Dr. Lily Cotter accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Lily Cotter commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.