Dr. Marlon Essien Brewer, MD
- Medicare services, 2024
- 31
- Medicare patients, 2024
- 18
- Part D claims, 2024
- 1,120
- Hospital affiliations
- 1
- Industry payments
- $19
- Practice address
- 79-01 Broadway, Elmhurst, NY 11373
- Practice phone
- Call (718) 334-1141
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Brewer'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. Marlon Essien Brewer is an internist in Elmhurst, New York
Dr. Brewer practices at NYC Health + Hospitals/Elmhurst in Elmhurst, New York, part of NYC.
Dr. Brewer's NPI, 1821015835, was assigned on July 16, 2006. Dr. Brewer graduated from Universidad de Barcelona Faculty of Medicine in 1986. Dr. Brewer holds New York license 189173.
- NPI
- 1821015835NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0244328300
- NPI enumeration date
- July 16, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (718) 334-1141
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marlon Essien Brewer practices at NYC Health + Hospitals/Elmhurst in Elmhurst, New York
Dr. Brewer's primary practice is NYC Health + Hospitals/Elmhurst, at 79-01 Broadway, Elmhurst, NY 11373 in Queens County. The practice phone is (718) 334-1141.
- NYC Health + Hospitals/Elmhurst79-01 Broadway, Elmhurst, NY 11373 · Queens CountyPhone(718) 334-1141
Source: Dmand AI Affiliation Data
Dr. Marlon Essien Brewer is affiliated with 3 sites of care and 2 medical groups
Dr. Brewer's primary practice is NYC Health + Hospitals/Elmhurst in Elmhurst, New York, part of NYC. The medical group on file is Mount Sinai Elmhurst Faculty Practice Group. Dmand AI also links Dr. Brewer to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Marlon Essien Brewer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Brewer practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| NYC Health + Hospitals/Elmhurst | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Marlon Essien Brewer is one of 9,643 internists in New York
Internal medicine is Dr. Brewer's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Brewer is licensed in New York.
Specialties and state licenses
- Internal medicine, New YorkPrimary
Internists near Dr. Brewer
Counts of internists 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. Marlon Essien Brewer billed Medicare for 31 services in 2024
CMS data shows 31 Medicare services from Dr. Brewer across 1 procedure code in 2024, all of them office visits, for 18 Medicare patients. Medicare paid $1,431 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Brewer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 292024: 317%
Dr. Brewer compared with the New York median for internists, 2024
- Dr. Brewer
- New York median
- Medicare services
- 31vs 42693% below
- Medicare patients
- 18vs 15889% below
- Part D claims
- 812vs 62231% above
Medians across 9,428 internists in New York with Dmand AI profiles that report each measure.
Dr. Brewer'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
Dr. Marlon Essien Brewer treated 18 Medicare patients in 2024, average age 76
CMS counts 18 Medicare patients who saw Dr. Brewer in 2024. 75% of them have high blood pressure, and 67% have high cholesterol. Their average risk score is 0.87, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Brewer's median patient age at 46, with 63% women.
Chronic conditions among Dr. Brewer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol67%
Share of Medicare patients with each condition. A patient can have several.
Dr. Brewer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 46
Patient panel by sex, all payers
- Women63%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Marlon Essien Brewer wrote 1,120 Medicare Part D claims in 2024
In 2024, Dr. Brewer wrote 1,120 Medicare Part D claims for 93 patients. 76% of them were for generic drugs. CMS names the drug for 812 of them, across 31 drugs with 11 or more claims each, at $92,170 in total drug cost. In 2023, CMS named 824 claims across 30 drugs.
Dr. Brewer's Part D claims by kind of drug, 2024
- Generic851 claims76%
- Brand-name198 claims18%
- Other71 claims6%
Dr. Brewer'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: 8242024: 8121%
Drugs named by CMS: 31 in 2024, 30 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. Marlon Essien Brewer takes part in Medicare
Dr. Brewer 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. Marlon Essien Brewer received $19 in industry payments in 2021
CMS Open Payments shows 1 general payment to Dr. Brewer from 1 drug or device company in 2021. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $19.
Companies that paid Dr. Brewer the most, 2021 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Marlon Essien Brewer graduated from Universidad de Barcelona Faculty of Medicine
Dr. Brewer graduated from Universidad de Barcelona Faculty of Medicine in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Marlon Essien Brewer'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Marlon Essien Brewer
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. Marlon Essien Brewer's NPI number?
Dr. Marlon Essien Brewer's NPI number is 1821015835. It was assigned on July 16, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Marlon Essien Brewer?
Dr. Marlon Essien Brewer is an internist in Elmhurst, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Marlon Essien Brewer practice?
Dr. Brewer practices at 79-01 Broadway, Elmhurst, NY 11373. Dr. Brewer's primary practice is NYC Health + Hospitals/Elmhurst in Elmhurst, New York, part of NYC. Dmand AI also links Dr. Brewer to 2 group practices and clinics and 1 medical group.
What is Dr. Marlon Essien Brewer's office phone number?
The practice phone on file for Dr. Brewer is (718) 334-1141.
What is Dr. Marlon Essien Brewer's medical license number?
Dr. Brewer holds New York license 189173.
Which hospitals is Dr. Marlon Essien Brewer affiliated with?
Dr. Brewer practices at NYC Health + Hospitals/Elmhurst in Elmhurst, New York.
What medical group is Dr. Marlon Essien Brewer part of?
Dr. Brewer is linked to Mount Sinai Elmhurst Faculty Practice Group. Dmand AI links Dr. Brewer to 1 more medical group.
Does Dr. Marlon Essien Brewer accept Medicare?
Yes. CMS data shows Dr. Brewer billed Medicare for 31 services in 2024, and Dr. Brewer accepts Medicare assignment.
How many Medicare patients does Dr. Marlon Essien Brewer see?
CMS counts 18 Medicare patients who saw Dr. Brewer in 2024, with an average age of 76.
What services does Dr. Marlon Essien Brewer bill to Medicare?
In 2024, Dr. Brewer's most billed Medicare services were office visit, established patient (99213).
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Where did Dr. Marlon Essien Brewer go to medical school?
Dr. Brewer graduated from Universidad de Barcelona Faculty of Medicine in 1986.
What drugs does Dr. Marlon Essien Brewer prescribe most?
In 2024 Medicare Part D data, Dr. Brewer's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Hydrochlorothiazide.
Has Dr. Marlon Essien Brewer received payments from drug or device companies?
CMS Open Payments shows $19 in general payments to Dr. Brewer from 1 company from 2021 to 2021. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Marlon Essien Brewer been practicing?
Dr. Brewer graduated from medical school in 1986, 40 years ago.
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