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Dr. Gretel Dayna D'Souza, MD
NPI1679138531PAC ID8820537533
- Part D claims, 2024
- 228
- Publications
- 1
- Industry payments
- $5,876
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 191 S Buena Vista St, Burbank, CA 91505
- Practice phone
- Call (818) 637-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Lakeside Medical Organization, a Medical Group Inc.
Burbank, California
Find Dr. D'Souza's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Gretel Dayna D'Souza is a rheumatologist in Burbank, California
Dr. D'Souza practices at Lakeside Medical Organization, a Medical Group Inc. in Burbank, California.
Dr. D'Souza's NPI, 1679138531, was assigned on May 7, 2019. Dr. D'Souza graduated from American University of Antigua College of Medicine in 2018. Dr. D'Souza holds California license 178675.
NPI and contact details
- NPI
- 1679138531NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8820537533
- NPI enumeration date
- May 7, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (818) 637-2000
- 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 Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gretel Dayna D'Souza practices at Lakeside Medical Organization, a Medical Group Inc. in Burbank, California
Dr. D'Souza's primary practice is Lakeside Medical Organization, a Medical Group Inc., at 191 S Buena Vista St, Burbank, CA 91505 in Los Angeles County. The practice phone is (818) 637-2000.
- Lakeside Medical Organization, a Medical Group Inc.191 S Buena Vista St, Burbank, CA 91505 · Los Angeles CountyPhone(818) 637-2000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gretel Dayna D'Souza is affiliated with 2 sites of care and 1 medical group
Dr. D'Souza's primary practice is Lakeside Medical Organization, a Medical Group Inc. in Burbank, California. The medical group on file is Lakeside Community Healthcare. Dmand AI also links Dr. D'Souza to 1 more group practice or clinic, named with a free account.
Lakeside Medical Organization, a Medical Group Inc.Primary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gretel Dayna D'Souza's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. D'Souza practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lakeside Medical Organization, a Medical Group Inc. | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Gretel Dayna D'Souza is one of 821 rheumatologists in California
Rheumatology is Dr. D'Souza's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. D'Souza is board certified in internal medicine by the American Board of Internal Medicine. Dr. D'Souza is licensed in California.
Specialties and state licenses
- Rheumatology, CaliforniaPrimary
Rheumatologists near Dr. D'Souza
Counts of rheumatologists with a Dmand AI profile, by place and practice. Each opens the list.
821rheumatologists in California
3rheumatologists in Burbank
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Gretel Dayna D'Souza's patients have a median age of 59
Across all payers, Dmand AI patient panel data puts Dr. D'Souza's median patient age at 59, with 78% women.
Dr. D'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 59
Patient panel by sex, all payers
- Women78%
- Men22%
Source: Dmand AI Patient Panel Data
Dr. Gretel Dayna D'Souza wrote 228 Medicare Part D claims in 2024
In 2024, Dr. D'Souza wrote 228 Medicare Part D claims for 75 patients. 86% of them were for generic drugs. CMS names the drug for 124 of them, across 6 drugs with 11 or more claims each, at $3,066 in total drug cost. In 2023, CMS named 162 claims across 8 drugs.
Part D claims, 2024228
Drugs named by CMS6
Total drug cost$3,066
Part D patients75
Dr. D'Souza's Part D claims by kind of drug, 2024
- Generic197 claims86%
- Brand-name and other31 claims14%
Dr. D'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1622024: 12423%
Drugs named by CMS: 6 in 2024, 8 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 Dr. Gretel Dayna D'Souza takes part in Medicare
Dr. D'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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Dr. Gretel Dayna D'Souza has 1 publication on record
Dmand AI links 1 paper to Dr. D'Souza. Dr. D'Souza's most frequent co-authors are Stephen Wayne Hosea, MD and Elizabeth Preethi Pandian, MD.
Papers1
Dr. D'Souza's most frequent co-authors
Recent publications by Dr. D'Souza
See who Dr. D'Souza researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. D'Souza works with, so you can find a warm path to the right rheumatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Gretel Dayna D'Souza received $5,876 in industry payments from 2022 to 2025
CMS Open Payments shows 162 general payments to Dr. D'Souza from 15 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 97% of the total. Amgen Inc. paid the most, $1,286.
General payments to Dr. D'Souza by program year, 2022 to 2025
General payments to Dr. D'Souza by kind, 2022 to 2025
$5.9Kin total
- Food and beverage$5,69497%
- Education$1823%
Companies that paid Dr. D'Souza the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gretel Dayna D'Souza graduated from American University of Antigua College of Medicine
Dr. D'Souza graduated from American University of Antigua College of Medicine in 2018.
- Medical school
- Board certified in internal medicine
- Board certified in rheumatology
Source: Dmand AI Professional Profile Data
Dr. Gretel Dayna D'Souza accepts plans from 4 insurance carriers
Dr. D'Souza is in network with 4 carriers, including Aetna, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Massachusetts
- HCSC
- CMS Medicare
Plan types Dr. D'Souza accepts, by number of carriers
- Medicare4
- PPO3
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Gretel Dayna D'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (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 Dr. Gretel Dayna D'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 Dr. Gretel Dayna D'Souza's NPI number?
Dr. Gretel Dayna D'Souza's NPI number is 1679138531. It was assigned on May 7, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Gretel Dayna D'Souza?
Dr. Gretel Dayna D'Souza is a rheumatologist in Burbank, California. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Gretel Dayna D'Souza practice?
Dr. D'Souza practices at 191 S Buena Vista St, Burbank, CA 91505. Dr. D'Souza's primary practice is Lakeside Medical Organization, a Medical Group Inc. in Burbank, California. Dmand AI also links Dr. D'Souza to 1 group practice or clinic.
What is Dr. Gretel Dayna D'Souza's office phone number?
The practice phone on file for Dr. D'Souza is (818) 637-2000.
What is Dr. Gretel Dayna D'Souza's medical license number?
Dr. D'Souza holds California license 178675.
What medical group is Dr. Gretel Dayna D'Souza part of?
Dr. D'Souza is linked to Lakeside Community Healthcare.
Does Dr. Gretel Dayna D'Souza accept Medicare?
Yes. CMS lists Dr. D'Souza as accepting Medicare assignment.
Is Dr. Gretel Dayna D'Souza board certified?
Yes. Dr. D'Souza is board certified in internal medicine by the American Board of Internal Medicine.
Where did Dr. Gretel Dayna D'Souza go to medical school?
Dr. D'Souza graduated from American University of Antigua College of Medicine in 2018.
What drugs does Dr. Gretel Dayna D'Souza prescribe most?
In 2024 Medicare Part D data, Dr. D'Souza's most prescribed drugs by claims were Methotrexate, Hydroxychloroquine Sulfate and Omeprazole.
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Has Dr. Gretel Dayna D'Souza received payments from drug or device companies?
CMS Open Payments shows $5,876 in general payments to Dr. D'Souza from 15 companies from 2022 to 2025. The largest total came from Amgen Inc.
How long has Dr. Gretel Dayna D'Souza been practicing?
Dr. D'Souza graduated from medical school in 2018, 8 years ago.
Does Dr. Gretel Dayna D'Souza do research?
Dmand AI links 1 publication to Dr. D'Souza.
Who does Dr. Gretel Dayna D'Souza publish with?
Dr. D'Souza's most frequent co-authors are Stephen Wayne Hosea, MD (1 shared paper) and Elizabeth Preethi Pandian, MD (1 shared paper).
What insurance does Dr. Gretel Dayna D'Souza accept?
Dr. D'Souza is in network with 4 carriers, including Aetna, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
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