Doctor profile · Federal record

Dr. Marvin Tam, M.D.

Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Mesa, AZ

  • NPI 1174512032
  • Accepts Medicare
  • 33 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
6424 E Broadway RD Ste 101
Mesa, AZ 852061750
(480) 456-9000
Additional location
1201 S Alma School RD, Suite 14000
Mesa, AZ 852102008
(480) 545-8119
fax (480) 892-6805
Mailing address
1201 S Alma School RD, Suite 14000
Mesa, AZ 852102008

Credentials & registration

NPPES · NUCC
NPI registered
October 2005 — 21 yrs on file
Profile last updated
February 11, 2019
Year of graduation
1993 — 33 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State license (1)
Arizona #28319
Medicaid
AZ #513756

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1174512032. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
21,001
Distinct HCPCS
10
Medicare allowed
$338,205
HCPCS Description Services Patients Avg allowed
Q9967 Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml 11,036 141 $0
A9585 Injection, gadobutrol, 0.1 ml 5,779 76 $0
71045 X-ray of chest, 1 view 516 502 $9
77080 Dxa bone density measurement of hip, pelvis, spine 416 415 $37
71046 X-ray of chest, 2 views 241 241 $32
73721 Mri scan of leg joint without contrast 187 172 $196
70450 Ct scan head or brain without contrast 179 178 $39
71250 Ct scan of chest without contrast 147 145 $130
73221 Mri scan of arm joint without contrast 131 124 $199
72148 Mri scan of lower spinal canal without contrast 97 97 $186

In context: peer comparison

Among 18 peers in Mesa Diagnostic Radiology Physician, average services per provider: 273. This provider delivers 77× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
11
Patients
11
Total drug cost
$80
Drug Type Claims Patients Total cost
Methylprednisolone Generic 11 11 $80

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Marvin Tam's medical specialty?
Dr. Marvin Tam practices Diagnostic Radiology Physician in Mesa, AZ.
Where does Dr. Marvin Tam practice?
Dr. Marvin Tam practices at 6424 E Broadway RD Ste 101, Mesa, AZ 852061750. Office phone: 4804569000.
What is Dr. Marvin Tam's NPI?
Dr. Marvin Tam's National Provider Identifier (NPI) is 1174512032, issued by NPPES.
Does Dr. Marvin Tam accept Medicare assignment?
Yes. Dr. Marvin Tam accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marvin Tam commonly perform?
Top Medicare-reported procedures in 2023: Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); Injection, gadobutrol, 0.1 ml (HCPCS A9585); X-ray of chest, 1 view (HCPCS 71045). Source: CMS Medicare Physician & Other Practitioners file.