Doctor profile · Federal record

Dr. Thomas Maclennan, M.D.

Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Porterville, CA

  • NPI 1033169891
  • Accepts Medicare
  • MIPS 74.5 / 100 · 2023
  • 55 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
465 W Putnam Ave
Porterville, CA 932573320
(559) 310-0287
Mailing address
Po Box 190
Simi Valley, CA 930620190

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
February 4, 2019
Year of graduation
1971 — 55 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State license (1)
California #G23748
Medicaid
CA #00G237480

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1033169891. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
16,916
Distinct HCPCS
10
Medicare allowed
$620,698
HCPCS Description Services Patients Avg allowed
71045 X-ray of chest, 1 view 2,010 1,024 $9
70450 Ct scan head or brain without contrast 1,225 924 $40
77067 Screening mammography 828 828 $37
77063 Screening 3d breast mammography 826 826 $29
74176 Ct scan of abdomen and pelvis without contrast 481 419 $84
74177 Ct scan of abdomen and pelvis with contrast 446 372 $88
71046 X-ray of chest, 2 views 444 402 $11
76641 Complete ultrasound scan of 1 breast 430 367 $42
77080 Dxa bone density measurement of hip, pelvis, spine 355 355 $9
G0279 Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) 327 273 $29

In context: peer comparison

Among 2 peers in Porterville Diagnostic Radiology Physician, average services per provider: 96. This provider delivers 176× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
12
Patients
0
Total drug cost
$134
Drug Type Claims Patients Total cost
Celecoxib Generic 12 0 $134

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Maclennan's medical specialty?
Dr. Thomas Maclennan practices Diagnostic Radiology Physician in Porterville, CA.
Where does Dr. Thomas Maclennan practice?
Dr. Thomas Maclennan practices at 465 W Putnam Ave, Porterville, CA 932573320. Office phone: 5593100287.
What is Dr. Thomas Maclennan's NPI?
Dr. Thomas Maclennan's National Provider Identifier (NPI) is 1033169891, issued by NPPES.
Does Dr. Thomas Maclennan accept Medicare assignment?
Yes. Dr. Thomas Maclennan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Maclennan commonly perform?
Top Medicare-reported procedures in 2023: X-ray of chest, 1 view (HCPCS 71045); Ct scan head or brain without contrast (HCPCS 70450); Screening mammography (HCPCS 77067). Source: CMS Medicare Physician & Other Practitioners file.