Katya Isabel De Souza
- 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
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Katya De Souza's professional email, personal email and mobile number
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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
- 1417452228NPI Registry (opens in a new tab)
- 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.
- Fremont Medical Center39400 Paseo Padre Pkwy, Fremont, CA 94538 · Alameda CountyPhone(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.
| Site | EHR vendor and product |
|---|---|
| Fremont Medical Center | Available 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, CaliforniaPrimary
- Maine license
- Pennsylvania license
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.
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.
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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.
Katya De Souza's Medicare patients by sex, 2024
- Women1248%
- Men1352%
Chronic conditions among Katya De Souza's Medicare patients, 2024
- High blood pressure75%
- High cholesterol64%
- 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.
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.
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.
- Medical school
- Board certified in 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
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Katya Isabel De Souza's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand 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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