Doctor profile · Federal record

Dr. Christina Massuros, PA

Physician Assistant · Physician Assistant · Simi Valley, CA

  • NPI 1386305076
  • MIPS 77.6 / 100 · 2023
  • 4 yrs on file
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
3605 Alamo St Ste 200
Simi Valley, CA 930632186
(805) 578-8550
Additional location
4822 1/2 Santa Ana St
Cudahy, CA 902016289
(818) 468-5755
Mailing address
5767 W Century Blvd Ste 400
Los Angeles, CA 900455631

Credentials & registration

NPPES · NUCC
NPI registered
January 2022 — 4 yrs on file
Profile last updated
August 8, 2022
Specialty taxonomy
363A00000X — NUCC code
State license (1)
California #60659

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1386305076. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
601
Distinct HCPCS
9
Medicare allowed
$45,805
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 224 157 $84
99214 Established patient office or other outpatient visit, 30-39 minutes 157 113 $117
73110 X-ray of wrist, minimum of 3 views 68 35 $40
73140 X-ray of finger, minimum of 2 views 40 19 $37
73080 X-ray of elbow, minimum of 3 views 26 16 $32
Q4010 Cast supplies, short arm cast, adult (11 years +), fiberglass 24 16 $23
73030 X-ray of shoulder, minimum of 2 views 23 14 $33
29075 Application of elbow to finger cast 21 14 $84
73130 X-ray of hand, minimum of 3 views 18 13 $36

In context: peer comparison

Among 8 peers in this city , average services per provider: 61. This provider delivers 9.9× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
94
Patients
81
Total drug cost
$686
Drug Type Claims Patients Total cost
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 42 41 $299
Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) Brand 22 22 $269
Tramadol Hcl Generic 18 18 $44
Cephalexin Generic 12 0 $74

Frequently asked questions

Auto-generated from federal data
What is Dr. Christina Massuros's medical specialty?
Dr. Christina Massuros practices Physician Assistant in Simi Valley, CA.
Where does Dr. Christina Massuros practice?
Dr. Christina Massuros practices at 3605 Alamo St Ste 200, Simi Valley, CA 930632186. Office phone: 8055788550.
What is Dr. Christina Massuros's NPI?
Dr. Christina Massuros's National Provider Identifier (NPI) is 1386305076, issued by NPPES.
What procedures does Dr. Christina Massuros commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); X-ray of wrist, minimum of 3 views (HCPCS 73110). Source: CMS Medicare Physician & Other Practitioners file.