Doctor profile · Federal record

Dr. Andrew Singleton

Surgical Critical Care Physician (CMS: General Surgery) · Student in an Organized Health Care Education/Training Program · Pasadena, CA

  • NPI 1639312663
  • Accepts Medicare
  • 17 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1044 S Fair Oaks Ave Ste 101
Pasadena, CA 911052622
(626) 449-4859
fax (626) 403-0321
Additional location
1450 San Pablo St, Suite 6200
Los Angeles, CA 900334500
(323) 409-7761
Mailing address
Po Box 31309
Los Angeles, CA 900310309

Credentials & registration

NPPES · NUCC
NPI registered
April 2009 — 17 yrs on file
Profile last updated
June 21, 2020
Year of graduation
2009 — 17 yrs since
Specialty taxonomy
2086S0102X — NUCC code
State license (1)
California #A135966
Medicaid
CA #1134778806

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1639312663. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
752
Distinct HCPCS
10
Medicare allowed
$78,461
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 184 129 $83
99291 Critical care, first 30-74 minutes 150 102 $222
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 66 57 $52
G0316 Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th 55 28 $32
99239 Hospital discharge day management, more than 30 minutes 54 53 $121
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 49 43 $125
76705 Limited ultrasound scan of abdomen 44 43 $30
93308 Ultrasound of heart, follow-up 44 43 $26
76775 Limited ultrasound scan behind abdominal cavity 43 42 $29
99292 Critical care, each additional 30 minutes 32 23 $111

In context: peer comparison

Among 2 peers in this city , average services per provider: 62. This provider delivers 12× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Andrew Singleton's medical specialty?
Dr. Andrew Singleton practices Surgical Critical Care Physician in Pasadena, CA.
Where does Dr. Andrew Singleton practice?
Dr. Andrew Singleton practices at 1044 S Fair Oaks Ave Ste 101, Pasadena, CA 911052622. Office phone: 6264494859.
What is Dr. Andrew Singleton's NPI?
Dr. Andrew Singleton's National Provider Identifier (NPI) is 1639312663, issued by NPPES.
Does Dr. Andrew Singleton accept Medicare assignment?
Yes. Dr. Andrew Singleton accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Andrew Singleton commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Critical care (HCPCS 99291); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231). Source: CMS Medicare Physician & Other Practitioners file.