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Allison J Zemek, MD

Pathology · Anaheim

NPI 1255775698

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
Not verified
Not the same as out of network.
Offices
3

Offices

3 locations · Southern California Permanente Medical Group · 11,250 clinicians in this group

Looking this up.

Plan participation

Not verified

We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Dr. Zemek’s office to ask if they take your plan before you enroll.

California Medical Board record

Licence A131698 · Current

Licensed to practise in California · since 2014 · expires 2028-02-29 · Stanford University School of Medicine.

Matched on the licence number without its letter prefix; check the name before relying on it.

No disciplinary actions, convictions, malpractice judgments or citations in this record.

Original Medicare doctor bills

$2,035

Medicare paid this office $2,035 for 23 people.

This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.

Largest Original Medicare bills
Pathology examination of tissue using a microscope, intermediate complexity14$611$27

Who their Medicare patients are

23 Original Medicare patients in 2024. Average age 68 · Also on Medicaid 52% · Health risk score 2.03. Above the middle of the specialty; the typical pathology clinician is at 1.55.

The office billed $15,267, Medicare allowed $2,757 and paid $2,035; for 54 services of 9 kinds.

Original Medicare patients only. A risk score of 1.0 is the average Medicare patient; higher means sicker. Any count under 11 is hidden.

Year by year

Original Medicare by year
20242354682.03$15,267$2,035
20231249671.08$12,998$1,903
20222681672.12$16,464$2,400
20212335692.35$7,161$1,168
20203787652.61$11,307$2,740
20192558623.72$7,993$2,025

Original Medicare only. A service billed for fewer than 11 people in a year is hidden, so the lines can add up to less than the year's total.

See the services billed each year

2022: 1 service

Original Medicare services billed in 2022
Pathology examination of tissue using a microscope, intermediate complexity20$1,626$30

2021: 1 service

Original Medicare services billed in 2021
Pathology examination of tissue using a microscope, intermediate complexity15$588$31

2020: 1 service

Original Medicare services billed in 2020
Pathology examination of tissue using a microscope, intermediate complexity25$1,594$32

2019: 1 service

Original Medicare services billed in 2019
Pathology examination of tissue using a microscope, intermediate complexity19$738$32

Medicaid work

$35,567 in 2024

Medicaid paid $35,567 for 880 billed services this clinician did in 2024, up to 52 people in a month for one service.

Medicaid and CHIP claims where this clinician did the service, fee-for-service and managed care together. Any month with fewer than 11 patients is hidden, so small Medicaid practices undercount.

Largest Medicaid services in 2024
TISSUE EXAM BY PATHOLOGIST860$35,507
TISSUE EXAM BY PATHOLOGIST20$60
Medicaid work by year
2024880252$35,567
2023332253$9,577
2022461240$11,361
2021612238$15,193
2020608346$15,922
2019509236$907
2018218134$143
See the largest Medicaid services in earlier years

2023

Largest Medicaid services in 2023
TISSUE EXAM BY PATHOLOGIST319$9,557
TISSUE EXAM BY PATHOLOGIST13$20

2022

Largest Medicaid services in 2022
TISSUE EXAM BY PATHOLOGIST392$10,940
TISSUE EXAM BY PATHOLOGIST69$421

2021

Largest Medicaid services in 2021
TISSUE EXAM BY PATHOLOGIST567$14,983
TISSUE EXAM BY PATHOLOGIST45$210

2020

Largest Medicaid services in 2020
TISSUE EXAM BY PATHOLOGIST544$15,514
Immunohistochemistry or immunocytochemistry, per specimen; initial single antibody stain procedure15$300
TISSUE EXAM BY PATHOLOGIST49$107

2019

Largest Medicaid services in 2019
TISSUE EXAM BY PATHOLOGIST491$907
TISSUE EXAM BY PATHOLOGIST18$0

2018

Largest Medicaid services in 2018
TISSUE EXAM BY PATHOLOGIST218$143

Professional record

NPI
1255775698
Licence
CA 131698California A131698: Current · expires 2028-02-29
Trained
Stanford University School of Medicine, 2013
Gender
Female
More record details
Sole proprietor
Yes
Taxonomy
Federal specialty code 207ZP0102X (207ZP0102X); Student in a training program (390200000X)
Mailing address
9333 Imperial Hwy, Downey, CA, 90242
NPI first listed
2013-04-27
NPI last updated
2021-11-02
NPI record certified
2021-11-02

This is when the NPI record was last certified, not a medical board exam.

Extra NPI addresses: 300 Pasteur Dr, Stanford, CA, 94305

This office lists an electronic records connection.