Doctor profile · Federal record

Dr. John Nachazel, M.D.

Anatomic Pathology & Clinical Pathology Physician · Los Angeles, CA

  • NPI 1821075367
  • 21 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1401 S Grand Ave
Los Angeles, CA 900153010
(213) 742-5793
fax (213) 742-6373
Mailing address
5700 Southwyck Blvd
Toledo, OH 436141509

Credentials & registration

NPPES · NUCC
NPI registered
December 2005 — 21 yrs on file
Profile last updated
June 3, 2014
Specialty taxonomy
207ZP0102X — NUCC code
State license (1)
California #G10944
Medicaid
CA #00G109440

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1821075367. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
258
Distinct HCPCS
6
Medicare allowed
$9,491
HCPCS Description Services Patients Avg allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity 137 85 $39
88312 Special stained specimen slides to identify organisms including interpretation and report 63 48 $28
88304 Pathology examination of tissue using a microscope, moderately low complexity 17 12 $12
88307 Pathology examination of tissue using a microscope, moderately high complexity 16 13 $86
88112 Cell examination of specimen, selective cellular enhancement technique 13 12 $29
88342 Special stained specimen slides to examine tissue, initial procedure 12 11 $36

In context: peer comparison

Among 54 peers in Los Angeles Anatomic Pathology & Clinical Pathology Physician, average services per provider: 159. This provider delivers 1.6× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. John Nachazel's medical specialty?
Dr. John Nachazel practices Anatomic Pathology & Clinical Pathology Physician in Los Angeles, CA.
Where does Dr. John Nachazel practice?
Dr. John Nachazel practices at 1401 S Grand Ave, Los Angeles, CA 900153010. Office phone: 2137425793.
What is Dr. John Nachazel's NPI?
Dr. John Nachazel's National Provider Identifier (NPI) is 1821075367, issued by NPPES.
What procedures does Dr. John Nachazel commonly perform?
Top Medicare-reported procedures in 2023: Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Special stained specimen slides to identify organisms including interpretation and report (HCPCS 88312); Pathology examination of tissue using a microscope, moderately low complexity (HCPCS 88304). Source: CMS Medicare Physician & Other Practitioners file.