Doctor profile · Federal record

Dr. Agnieszka Gryguc-Saxanoff

Internal Medicine Physician (CMS: Hospitalist) · Hospitalist Physician · Santa Monica, CA

  • NPI 1588155287
  • Accepts Medicare
  • MIPS 84.9 / 100 · 2023
  • 14 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1250 16Th St # C2304
Santa Monica, CA 904041249
(310) 319-4698
Mailing address
5767 W Century Blvd Ste 400
Los Angeles, CA 900455631

Credentials & registration

NPPES · NUCC
NPI registered
May 2018 — 8 yrs on file
Profile last updated
November 9, 2021
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A174731

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1588155287. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
853
Distinct HCPCS
5
Medicare allowed
$97,198
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 480 174 $125
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 126 58 $32
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 105 101 $182
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 82 53 $83
99239 Hospital discharge day management, more than 30 minutes 60 58 $121

In context: peer comparison

Among 58 peers in this city , average services per provider: 97. This provider delivers 8.8× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Agnieszka Gryguc-Saxanoff's medical specialty?
Dr. Agnieszka Gryguc-Saxanoff practices Internal Medicine Physician in Santa Monica, CA.
Where does Dr. Agnieszka Gryguc-Saxanoff practice?
Dr. Agnieszka Gryguc-Saxanoff practices at 1250 16Th St # C2304, Santa Monica, CA 904041249. Office phone: 3103194698.
What is Dr. Agnieszka Gryguc-Saxanoff's NPI?
Dr. Agnieszka Gryguc-Saxanoff's National Provider Identifier (NPI) is 1588155287, issued by NPPES.
Does Dr. Agnieszka Gryguc-Saxanoff accept Medicare assignment?
Yes. Dr. Agnieszka Gryguc-Saxanoff accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Agnieszka Gryguc-Saxanoff commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); 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 (HCPCS G0316); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.