Dr. Harry Guillermo Sequeira Gross, MD
- Part D claims, 2024
- 71
- Hospital affiliations
- 1
- Industry payments
- $3,926
- Medical group
- 1
- State licenses
- 2
- Practice address
- 2051 Silverside Dr, Baton Rouge, LA 70808
- Practice phone
- Call (225) 765-7727
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Our Lady of the Lake Physician Group
Baton Rouge, Louisiana
Find Dr. Sequeira Gross' 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. Harry Guillermo Sequeira Gross is a hematologist and oncologist in Baton Rouge, Louisiana
Dr. Sequeira Gross practices at Our Lady of the Lake Physician Group in Baton Rouge, Louisiana.
Dr. Sequeira Gross' NPI, 1841851391, was assigned on June 25, 2019. Dr. Sequeira Gross holds Louisiana license 347683.
- NPI
- 1841851391NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9638550593
- NPI enumeration date
- June 25, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (225) 765-7727
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Harry Guillermo Sequeira Gross practices at Our Lady of the Lake Physician Group in Baton Rouge, Louisiana
Dr. Sequeira Gross' primary practice is Our Lady of the Lake Physician Group, at 2051 Silverside Dr, Baton Rouge, LA 70808 in East Baton Rouge Parish. The practice phone is (225) 765-7727.
- Our Lady of the Lake Physician Group2051 Silverside Dr, Baton Rouge, LA 70808 · East Baton Rouge ParishPhone(225) 765-7727
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Harry Guillermo Sequeira Gross is affiliated with 3 sites of care and 1 medical group
Dr. Sequeira Gross' primary practice is Our Lady of the Lake Physician Group in Baton Rouge, Louisiana. Dr. Sequeira Gross is also affiliated with Our Lady of the Lake Regional Medical Center. The medical group on file is Our Lady of the Lake Physician Group. Dmand AI also links Dr. Sequeira Gross to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Harry Guillermo Sequeira Gross' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sequeira Gross practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Our Lady of the Lake Physician Group | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Harry Guillermo Sequeira Gross is one of 171 hematologists and oncologists in Louisiana
Hematology and oncology is Dr. Sequeira Gross' primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dmand AI has Dr. Sequeira Gross' licenses on file in 2 states: Louisiana and Illinois.
Specialties and state licenses
- Hematology and oncology, LouisianaPrimary
- Illinois license
Hematologists and oncologists near Dr. Sequeira Gross
Counts of hematologists and oncologists 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
Dr. Harry Guillermo Sequeira Gross' patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Sequeira Gross' median patient age at 66, with 47% women.
Dr. Sequeira Gross' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women47%
- Men53%
Source: Dmand AI Patient Panel Data
Dr. Harry Guillermo Sequeira Gross wrote 71 Medicare Part D claims in 2024
In 2024, Dr. Sequeira Gross wrote 71 Medicare Part D claims for 18 patients. 79% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $68,165 in total drug cost.
Dr. Sequeira Gross' Part D claims by kind of drug, 2024
- Generic56 claims79%
- Brand-name15 claims21%
Dr. Sequeira Gross' 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.
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
Dr. Harry Guillermo Sequeira Gross offers telehealth to Medicare patients
Dr. Sequeira Gross accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Sequeira Gross as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Harry Guillermo Sequeira Gross received $3,926 in industry payments from 2024 to 2025
CMS Open Payments shows 67 general payments to Dr. Sequeira Gross from 25 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 71% of the total. Adaptive Biotechnologies Corporation paid the most, $1,566.
General payments to Dr. Sequeira Gross by program year, 2024 to 2025
General payments to Dr. Sequeira Gross by kind, 2024 to 2025
- Food and beverage$2,77071%
- Travel and lodging$96024%
- Education$1955%
Companies that paid Dr. Sequeira Gross the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Harry Guillermo Sequeira Gross'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Harry Guillermo Sequeira Gross
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. Harry Guillermo Sequeira Gross' NPI number?
Dr. Harry Guillermo Sequeira Gross' NPI number is 1841851391. It was assigned on June 25, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Harry Guillermo Sequeira Gross?
Dr. Harry Guillermo Sequeira Gross is a hematologist and oncologist in Baton Rouge, Louisiana. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Harry Guillermo Sequeira Gross practice?
Dr. Sequeira Gross practices at 2051 Silverside Dr, Baton Rouge, LA 70808. Dr. Sequeira Gross' primary practice is Our Lady of the Lake Physician Group in Baton Rouge, Louisiana. Dmand AI also links Dr. Sequeira Gross to 1 group practice or clinic.
What is Dr. Harry Guillermo Sequeira Gross' office phone number?
The practice phone on file for Dr. Sequeira Gross is (225) 765-7727.
What is Dr. Harry Guillermo Sequeira Gross' medical license number?
Dr. Sequeira Gross holds Louisiana license 347683, one of the licenses on file in 2 states.
Which states has Dr. Harry Guillermo Sequeira Gross been licensed in?
Dmand AI has state licenses on file for Dr. Sequeira Gross in Louisiana and Illinois.
Which hospitals is Dr. Harry Guillermo Sequeira Gross affiliated with?
Dr. Sequeira Gross is affiliated with Our Lady of the Lake Regional Medical Center.
What medical group is Dr. Harry Guillermo Sequeira Gross part of?
Dr. Sequeira Gross is linked to Our Lady of the Lake Physician Group.
Does Dr. Harry Guillermo Sequeira Gross accept Medicare?
Yes. CMS lists Dr. Sequeira Gross as accepting Medicare assignment.
Does Dr. Harry Guillermo Sequeira Gross offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Sequeira Gross as offering telehealth services.
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What drugs does Dr. Harry Guillermo Sequeira Gross prescribe most?
In 2024 Medicare Part D data, Dr. Sequeira Gross' most prescribed drugs by claims were Gavreto.
Has Dr. Harry Guillermo Sequeira Gross received payments from drug or device companies?
CMS Open Payments shows $3,926 in general payments to Dr. Sequeira Gross from 25 companies from 2024 to 2025. The largest total came from Adaptive Biotechnologies Corporation.
How long has Dr. Harry Guillermo Sequeira Gross been practicing?
Dr. Sequeira Gross graduated from medical school in 2016, 10 years ago.
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