Erroll I. Byer
- Medicare services, 2024
- 22
- Medicare patients, 2024
- 18
- Part D claims, 2024
- 51
- Hospital affiliations
- 1
- Industry payments
- $530
- Practice address
- 121 Dekalb Avenue, Brooklyn, NY 11201
- Practice phone
- Call (718) 250-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Erroll Byer's professional email, personal email and mobile number
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Erroll I. Byer is an OB-GYN in Brooklyn, New York
Erroll Byer practices at The Brooklyn Hospital Center in Brooklyn, New York, part of The Brooklyn Hospital Center.
Erroll Byer's NPI, 1689682437, was assigned on August 4, 2006. Erroll Byer graduated from Howard University College of Medicine in 1996. Erroll Byer holds New York license 217043.
- NPI
- 1689682437NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8921150590
- NPI enumeration date
- August 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (718) 250-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Erroll I. Byer practices at The Brooklyn Hospital Center in Brooklyn, New York
Erroll Byer's primary practice is The Brooklyn Hospital Center, at 121 Dekalb Avenue, Brooklyn, NY 11201 in Kings County. The practice phone is (718) 250-8000.
- The Brooklyn Hospital Center121 Dekalb Avenue, Brooklyn, NY 11201 · Kings CountyPhone(718) 250-8000
Source: Dmand AI Affiliation Data
Erroll I. Byer is affiliated with 1 site of care and 2 medical groups
Erroll Byer's primary practice is The Brooklyn Hospital Center in Brooklyn, New York, part of The Brooklyn Hospital Center. The medical group on file is The Brooklyn Hospital Center. Dmand AI also links Erroll Byer to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Erroll I. Byer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Erroll Byer practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Brooklyn Hospital Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across The Brooklyn Hospital Center and 6.2K+ hospitals, with verified contacts in the same login.
Erroll I. Byer is one of 2,664 OB-GYNs in New York
Obstetrics and gynecology is Erroll Byer's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Erroll Byer is licensed in New York.
Specialties and state licenses
- Obstetrics and gynecology, New YorkPrimary
OB-GYNs near Erroll Byer
Counts of OB-GYNs 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
Erroll I. Byer billed Medicare for 22 services in 2024
CMS data shows 22 Medicare services from Erroll Byer across 1 procedure code in 2024, all of them office visits, for 18 Medicare patients. Medicare paid $1,651 for them. Every service was in an office.
Erroll Byer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 192024: 2216%
Erroll Byer compared with the New York median for OB-GYNs, 2024
- Erroll Byer
- New York median
- Medicare services
- 22vs 7069% below
- Medicare patients
- 18vs 5467% below
- Part D claims
- 21vs 3845% below
Medians across 2,269 OB-GYNs in New York with Dmand AI profiles that report each measure.
Erroll Byer'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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Medicare shows one payer. Book a meeting to get commercial claims data for Erroll Byer and other OB-GYNs in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Erroll I. Byer treated 18 Medicare patients in 2024, average age 65
CMS counts 18 Medicare patients who saw Erroll Byer in 2024. The largest group is 85 and over, with 0 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.19, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Erroll Byer's median patient age at 47, with 98% women.
Erroll Byer's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Erroll Byer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Erroll Byer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 47
Patient panel by sex, all payers
- Women98%
- Men1%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Erroll I. Byer wrote 51 Medicare Part D claims in 2024
In 2024, Erroll Byer wrote 51 Medicare Part D claims for 40 patients. 100% of them were for generic drugs. CMS names the drug for 21 of them, across 1 drug with 11 or more claims each, at $26 in total drug cost. In 2023, CMS named 11 claims across 1 drug.
Erroll Byer'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 Erroll Byer's Part D claims, 2024
- Opioids47%24 of 51 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: 112024: 2191%
Drugs named by CMS: 1 in 2024, 1 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 Erroll I. Byer takes part in Medicare
Erroll Byer 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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Erroll I. Byer received $530 in industry payments from 2016 to 2024
CMS Open Payments shows 22 general payments to Erroll Byer from 12 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 68% of the total. Astellas Pharma US Inc paid the most, $200.
General payments to Erroll Byer by program year, 2016 to 2024
General payments to Erroll Byer by kind, 2016 to 2024
- Food and beverage$36268%
- Education$16832%
Companies that paid Erroll Byer the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Erroll I. Byer graduated from Howard University College of Medicine
Erroll Byer graduated from Howard University College of Medicine in 1996.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Erroll I. Byer'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 Erroll I. Byer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Erroll I. Byer's NPI number?
Erroll I. Byer's NPI number is 1689682437. It was assigned on August 4, 2006, and it is active in the NPI Registry.
What does Erroll I. Byer specialize in?
Erroll I. Byer is an OB-GYN in Brooklyn, New York. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Erroll I. Byer practice?
Erroll Byer practices at 121 Dekalb Avenue, Brooklyn, NY 11201. Erroll Byer's primary practice is The Brooklyn Hospital Center in Brooklyn, New York, part of The Brooklyn Hospital Center. Dmand AI also links Erroll Byer to 1 medical group.
What is Erroll I. Byer's office phone number?
The practice phone on file for Erroll Byer is (718) 250-8000.
What is Erroll I. Byer's medical license number?
Erroll Byer holds New York license 217043.
Which hospitals is Erroll I. Byer affiliated with?
Erroll Byer practices at The Brooklyn Hospital Center in Brooklyn, New York.
What medical group is Erroll I. Byer part of?
Erroll Byer is linked to The Brooklyn Hospital Center. Dmand AI links Erroll Byer to 1 more medical group.
Does Erroll I. Byer accept Medicare?
Yes. CMS data shows Erroll Byer billed Medicare for 22 services in 2024, and Erroll Byer accepts Medicare assignment.
How many Medicare patients does Erroll I. Byer see?
CMS counts 18 Medicare patients who saw Erroll Byer in 2024, with an average age of 65.
What services does Erroll I. Byer bill to Medicare?
In 2024, Erroll Byer's most billed Medicare services were office visit, established patient (99213).
Show 4 more questionsShow fewer questions
Where did Erroll I. Byer go to medical school?
Erroll Byer graduated from Howard University College of Medicine in 1996.
What drugs does Erroll I. Byer prescribe most?
In 2024 Medicare Part D data, Erroll Byer's most prescribed drugs by claims were Oxycodone HCl.
Has Erroll I. Byer received payments from drug or device companies?
CMS Open Payments shows $530 in general payments to Erroll Byer from 12 companies from 2016 to 2024. The largest total came from Astellas Pharma US Inc.
How long has Erroll I. Byer been practicing?
Erroll Byer graduated from medical school in 1996, 30 years ago.
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