Katya Isabel De Souza

  • Fremont, CA
  • Emergency medicine physician
NPI1417452228PAC ID5991181117
Medicare services, 2024
23
Medicare patients, 2024
25
Part D claims, 2024
150
Hospital affiliations
1
Medical group
1
Practice address
39400 Paseo Padre Pkwy, Fremont, CA 94538
Practice phone
Call (510) 784-4000
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Fremont Medical Center

Hospital · Fremont, California

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Katya Isabel De Souza is an emergency medicine physician in Fremont, California

Katya De Souza practices at Fremont Medical Center in Fremont, California, part of Kaiser Permanente.

Katya De Souza's NPI, 1417452228, was assigned on March 26, 2018. Katya De Souza graduated from UVA School of Medicine in 2018. Katya De Souza holds California license 176050.

NPI and contact details
Medicare PAC ID
5991181117
NPI enumeration date
March 26, 2018
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(510) 784-4000
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
34
Medical school graduation
2018

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Katya Isabel De Souza practices at Fremont Medical Center in Fremont, California

Katya De Souza's primary practice is Fremont Medical Center, at 39400 Paseo Padre Pkwy, Fremont, CA 94538 in Alameda County. The practice phone is (510) 784-4000.

Source: Dmand AI Affiliation Data

Katya Isabel De Souza is affiliated with 1 site of care and 1 medical group

Katya De Souza's primary practice is Fremont Medical Center in Fremont, California, part of Kaiser Permanente. The medical group on file is The Permanente Medical Group, Inc.

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Katya Isabel De Souza's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Katya De Souza practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Fremont Medical CenterAvailable with a free account

Source: Dmand AI Technology Install Data

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Katya Isabel De Souza is one of 7,423 emergency medicine physicians in California

Emergency medicine is Katya De Souza's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Katya De Souza is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Katya De Souza's licenses on file in 3 states: California, Maine and Pennsylvania.

Specialties and state licenses

  • Emergency medicine, CaliforniaPrimaryLicense 176050 · 2022 to 2026 · taxonomy 207P00000X
  • Maine licenseSince 2021
  • Pennsylvania license2020 to 2022

Emergency medicine physicians near Katya De Souza

Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Katya Isabel De Souza billed Medicare for 23 services in 2024

CMS data shows 23 Medicare services from Katya De Souza across 1 procedure code in 2024, for 25 Medicare patients. Medicare paid $2,866 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202423
Medicare patients25
Paid by Medicare$2,866
Procedure codes1

Katya De Souza's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 182024: 2328%

Katya De Souza compared with the California median for emergency medicine physicians, 2024

  • Katya De Souza
  • California median
Medicare services
23vs 26591% below
Medicare patients
25vs 24390% below
Part D claims
27vs 6256% below

Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.

Katya De Souza's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Katya De Souza

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Katya Isabel De Souza treated 25 Medicare patients in 2024, average age 66

CMS counts 25 Medicare patients who saw Katya De Souza in 2024. 75% of them have high blood pressure, and 64% have high cholesterol. Their average risk score is 2.07, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Katya De Souza's median patient age at 36, with 55% women.

Medicare patients, 202425
Average age66
Average risk score2.07

Katya De Souza's Medicare patients by sex, 2024

  • Women1248%
  • Men1352%

Chronic conditions among Katya De Souza's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol64%
  3. Diabetes52%

Share of Medicare patients with each condition. A patient can have several.

Katya De Souza's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 36

Patient panel by sex, all payers

  • Women55%
  • Men45%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Katya Isabel De Souza wrote 150 Medicare Part D claims in 2024

In 2024, Katya De Souza wrote 150 Medicare Part D claims for 112 patients. 93% of them were for generic drugs. CMS names the drug for 27 of them, across 2 drugs with 11 or more claims each, at $220 in total drug cost. In 2023, CMS named 24 claims across 2 drugs.

Part D claims, 2024150
Drugs named by CMS2
Total drug cost$220
Part D patients112

Katya De Souza's Part D claims by kind of drug, 2024

  • Generic140 claims93%
  • Brand-name and other10 claims7%

Katya De Souza's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Katya De Souza's Part D claims, 2024

  • Opioids7%11 of 150 claims
  • Antibiotics34%51 of 150 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 242024: 2713%

Drugs named by CMS: 2 in 2024, 2 in 2023.

See all prescribing by Katya De Souza

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Katya Isabel De Souza takes part in Medicare

Katya De Souza accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Katya Isabel De Souza graduated from UVA School of Medicine

Katya De Souza graduated from UVA School of Medicine in 2018.

  1. Medical schoolUVA School of Medicine
  2. Board certified in emergency medicineAmerican Board of Emergency Medicine

Source: Dmand AI Professional Profile Data

Katya Isabel De Souza accepts plans from 2 insurance carriers

Katya De Souza is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

  • Kaiser Permanente
  • CMS Medicare

Plan types Katya De Souza accepts, by number of carriers

  1. EPO1
  2. HMO1
  3. Medicare1
  4. POS1

Source: Dmand AI Insurance Network Data

Sources for Katya Isabel De Souza's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Katya Isabel De Souza

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Katya Isabel De Souza's NPI number?

Katya Isabel De Souza's NPI number is 1417452228. It was assigned on March 26, 2018, and it is active in the NPI Registry.

What does Katya Isabel De Souza specialize in?

Katya Isabel De Souza is an emergency medicine physician in Fremont, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Katya Isabel De Souza practice?

Katya De Souza practices at 39400 Paseo Padre Pkwy, Fremont, CA 94538. Katya De Souza's primary practice is Fremont Medical Center in Fremont, California, part of Kaiser Permanente.

What is Katya Isabel De Souza's office phone number?

The practice phone on file for Katya De Souza is (510) 784-4000.

What is Katya Isabel De Souza's medical license number?

Katya De Souza holds California license 176050, one of the licenses on file in 3 states.

Which states has Katya Isabel De Souza been licensed in?

Dmand AI has state licenses on file for Katya De Souza in California (2022 to 2026), Maine (since 2021) and Pennsylvania (2020 to 2022).

Which hospitals is Katya Isabel De Souza affiliated with?

Katya De Souza practices at Fremont Medical Center in Fremont, California.

What medical group is Katya Isabel De Souza part of?

Katya De Souza is linked to The Permanente Medical Group, Inc.

Does Katya Isabel De Souza accept Medicare?

Yes. CMS data shows Katya De Souza billed Medicare for 23 services in 2024, and Katya De Souza accepts Medicare assignment.

How many Medicare patients does Katya Isabel De Souza see?

CMS counts 25 Medicare patients who saw Katya De Souza in 2024, with an average age of 66.

Show 6 more questionsShow fewer questions

Is Katya Isabel De Souza board certified?

Yes. Katya De Souza is board certified in emergency medicine by the American Board of Emergency Medicine.

What services does Katya Isabel De Souza bill to Medicare?

In 2024, Katya De Souza's most billed Medicare services were emergency department visit (99285).

Where did Katya Isabel De Souza go to medical school?

Katya De Souza graduated from UVA School of Medicine in 2018.

What drugs does Katya Isabel De Souza prescribe most?

In 2024 Medicare Part D data, Katya De Souza's most prescribed drugs by claims were Cefadroxil and Oxycodone HCl.

How long has Katya Isabel De Souza been practicing?

Katya De Souza graduated from medical school in 2018, 8 years ago.

What insurance does Katya Isabel De Souza accept?

Katya De Souza is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

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