Doctor profile · Federal record

Dr. Mandana Shamsa, MD

Internal Medicine Physician (CMS: Internal Medicine) · Downey, CA

  • NPI 1770628638
  • Accepts Medicare
  • MIPS 67.3 / 100 · 2023
  • 33 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
11500 Brookshire Ave
Downey, CA 90241
(562) 904-5000
fax (562) 904-5140
Mailing address
6557 Greenleaf Ave
Whittier, CA 906014108

Credentials & registration

NPPES · NUCC
NPI registered
February 2007 — 19 yrs on file
Profile last updated
June 28, 2018
Year of graduation
1993 — 33 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #C150181

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1770628638. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
336
Distinct HCPCS
3
Medicare allowed
$29,300
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 261 83 $84
99238 Hospital discharge day management, 30 minutes or less 54 53 $86
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 21 20 $135

In context: peer comparison

Among 15 peers in this city , average services per provider: 213. This provider delivers 1.6× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
66
Patients
52
Total drug cost
$10,238
Drug Type Claims Patients Total cost
Eliquis (Apixaban) Brand 15 12 $9,960
Levofloxacin Generic 15 15 $40
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 13 13 $67
Cephalexin Generic 12 12 $106
Clopidogrel (Clopidogrel Bisulfate) Brand 11 0 $65

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mandana Shamsa's medical specialty?
Dr. Mandana Shamsa practices Internal Medicine Physician in Downey, CA.
Where does Dr. Mandana Shamsa practice?
Dr. Mandana Shamsa practices at 11500 Brookshire Ave, Downey, CA 90241. Office phone: 5629045000.
What is Dr. Mandana Shamsa's NPI?
Dr. Mandana Shamsa's National Provider Identifier (NPI) is 1770628638, issued by NPPES.
Does Dr. Mandana Shamsa accept Medicare assignment?
Yes. Dr. Mandana Shamsa accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mandana Shamsa commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99238); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.