Doctor profile · Federal record

Dr. Alireza Tafazzoli, M.D.

Anatomic Pathology & Clinical Pathology Physician (CMS: Pathology) · Cytopathology Physician · Clinical Pathology/Laboratory Medicine Physician · Mission Viejo, CA

  • NPI 1659486660
  • Accepts Medicare
  • MIPS 79.4 / 100 · 2023
  • 26 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
27700 Medical Center RD
Mission Viejo, CA 926916426
(949) 364-1400

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
March 31, 2009
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
207ZP0102X — NUCC code
State license (1)
California #A77595
Medicaid (2)
CA #00A775950 · CA #00A775950F39

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1659486660. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,231
Distinct HCPCS
10
Medicare allowed
$114,635
HCPCS Description Services Patients Avg allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity 1,014 445 $39
88305 Pathology examination of tissue using a microscope, intermediate complexity 549 232 $78
88341 Special stained specimen slides to examine tissue, each additional procedure 115 40 $30
88108 Cell examination of specimen, concentration technique 73 71 $24
88304 Pathology examination of tissue using a microscope, moderately low complexity 73 63 $12
88311 Preparation of tissue for examination by removing any calcium present 73 68 $13
88342 Special stained specimen slides to examine tissue, initial procedure 72 62 $36
88307 Pathology examination of tissue using a microscope, moderately high complexity 64 33 $86
G0416 Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method 45 44 $182
88360 Microscopic genetic analysis of tumor, manual 44 16 $44

In context: peer comparison

Among 3 peers in this city , average services per provider: 139. This provider delivers 16× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Alireza Tafazzoli's medical specialty?
Dr. Alireza Tafazzoli practices Anatomic Pathology & Clinical Pathology Physician in Mission Viejo, CA.
Where does Dr. Alireza Tafazzoli practice?
Dr. Alireza Tafazzoli practices at 27700 Medical Center RD, Mission Viejo, CA 926916426. Office phone: 9493641400.
What is Dr. Alireza Tafazzoli's NPI?
Dr. Alireza Tafazzoli's National Provider Identifier (NPI) is 1659486660, issued by NPPES.
Does Dr. Alireza Tafazzoli accept Medicare assignment?
Yes. Dr. Alireza Tafazzoli accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alireza Tafazzoli commonly perform?
Top Medicare-reported procedures in 2023: Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341). Source: CMS Medicare Physician & Other Practitioners file.