Doctor profile · Federal record

Dr. Brit Shackley, M.D.

Anatomic Pathology & Clinical Pathology Physician (CMS: Pathology) · Pasadena, CA

  • NPI 1336460435
  • Accepts Medicare
  • 19 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
100 W California Blvd
Pasadena, CA 911053010
(626) 397-8616
fax (626) 397-2156
Mailing address
5700 Southwyck Blvd
Toledo, OH 436141509

Credentials & registration

NPPES · NUCC
NPI registered
June 2010 — 16 yrs on file
Profile last updated
March 29, 2013
Year of graduation
2007 — 19 yrs since
Specialty taxonomy
207ZP0102X — NUCC code
State license (1)
California #A107373

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1336460435. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
4,235
Distinct HCPCS
10
Medicare allowed
$172,859
HCPCS Description Services Patients Avg allowed
84165 Protein measurement, serum 633 558 $18
88341 Special stained specimen slides to examine tissue, each additional procedure 405 77 $29
86334 Immunologic analysis technique on serum (immunofixation) 353 321 $18
88305 Pathology examination of tissue using a microscope, intermediate complexity 334 161 $79
88305 Pathology examination of tissue using a microscope, intermediate complexity 307 195 $39
84166 Protein measurement, body fluid 217 213 $18
85060 Blood smear interpretation by physician with written report 193 174 $25
88360 Microscopic genetic analysis of tumor, manual 180 38 $43
88342 Special stained specimen slides to examine tissue, initial procedure 150 105 $36
86335 Immunologic analysis technique on body fluid, other fluids with concentration 148 146 $18

In context: peer comparison

Among 7 peers in Pasadena Anatomic Pathology & Clinical Pathology Physician, average services per provider: 297. This provider delivers 14× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Brit Shackley's medical specialty?
Dr. Brit Shackley practices Anatomic Pathology & Clinical Pathology Physician in Pasadena, CA.
Where does Dr. Brit Shackley practice?
Dr. Brit Shackley practices at 100 W California Blvd, Pasadena, CA 911053010. Office phone: 6263978616.
What is Dr. Brit Shackley's NPI?
Dr. Brit Shackley's National Provider Identifier (NPI) is 1336460435, issued by NPPES.
Does Dr. Brit Shackley accept Medicare assignment?
Yes. Dr. Brit Shackley accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Brit Shackley commonly perform?
Top Medicare-reported procedures in 2023: Protein measurement, serum (HCPCS 84165); Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341); Immunologic analysis technique on serum (immunofixation) (HCPCS 86334). Source: CMS Medicare Physician & Other Practitioners file.