Dr. Mark A. Nelson, DO
- Medicare services, 2024
- 3,949
- Medicare patients, 2024
- 1,242
- Part D claims, 2024
- 8,780
- MIPS score, 2024
- 68
- Hospital affiliations
- 2
- Practice address
- 777 Sunrise Hwy, Lynbrook, NY 11563
- Practice phone
- Call (516) 887-3516
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Long Island Neurology Consultants
Lynbrook, New York
Find Dr. Nelson'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. Mark A. Nelson is a neurologist in Lynbrook, New York
Dr. Nelson practices at Long Island Neurology Consultants in Lynbrook, New York.
Dr. Nelson's NPI, 1922084409, was assigned on December 16, 2005. Dr. Nelson graduated from NYIT College Of Osteopathic Medicine in 1992. Dr. Nelson holds New York license 198019.
- NPI
- 1922084409NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527135748
- NPI enumeration date
- December 16, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (516) 887-3516
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark A. Nelson practices at Long Island Neurology Consultants in Lynbrook, New York
Dr. Nelson's primary practice is Long Island Neurology Consultants, at 777 Sunrise Hwy, Lynbrook, NY 11563 in Nassau County. The practice phone is (516) 887-3516.
- Long Island Neurology Consultants777 Sunrise Hwy, Lynbrook, NY 11563 · Nassau CountyPhone(516) 887-3516
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark A. Nelson is affiliated with 4 sites of care and 1 medical group
Dr. Nelson's primary practice is Long Island Neurology Consultants in Lynbrook, New York. Dr. Nelson is also affiliated with North Shore University Hospital. The medical group on file is Long Island Neurology Consultants. Dmand AI also links Dr. Nelson to 1 more hospital and 1 group practice or clinic, each 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. Mark A. Nelson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nelson practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Long Island Neurology Consultants | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark A. Nelson is one of 1,489 neurologists in New York
Neurology is Dr. Nelson's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Nelson is licensed in New York.
Specialties and state licenses
- Neurology, New YorkPrimary
Neurologists near Dr. Nelson
Counts of neurologists 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. Mark A. Nelson billed Medicare for 3,949 services in 2024
CMS data shows 3,949 Medicare services from Dr. Nelson across 17 procedure codes in 2024, for 1,242 Medicare patients. Medicare paid $483,202 for them. Every service was in an office.
Dr. Nelson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,9272024: 1,9823%
- Office and hospital visits
- 2023: 2,0692024: 1,9675%
Dr. Nelson compared with the New York median for neurologists, 2024
- Dr. Nelson
- New York median
- Medicare services
- 3,949vs 37610.5 times
- Medicare patients
- 1,242vs 1906.5 times
- Part D claims
- 8,424vs 37522.5 times
Medians across 1,462 neurologists in New York with Dmand AI profiles that report each measure.
Dr. Nelson'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. Mark A. Nelson treated 1,242 Medicare patients in 2024, average age 75
CMS counts 1,242 Medicare patients who saw Dr. Nelson in 2024. The largest group is 75 to 84, with 475 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.36, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Nelson's median patient age at 63, with 60% women.
Dr. Nelson's Medicare patients by age, 2024
Dr. Nelson's Medicare patients by sex, 2024
- Women71858%
- Men52442%
Chronic conditions among Dr. Nelson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis56%
- Diabetes39%
- Ischemic heart disease33%
- Anxiety31%
- Mood disorders28%
- Depression25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nelson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women60%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark A. Nelson wrote 8,780 Medicare Part D claims in 2024
In 2024, Dr. Nelson wrote 8,780 Medicare Part D claims for 1,035 patients. 90% of them were for generic drugs. CMS names the drug for 8,424 of them, across 96 drugs with 11 or more claims each, at $3,106,725 in total drug cost. In 2023, CMS named 7,065 claims across 78 drugs.
Dr. Nelson's Part D claims by kind of drug, 2024
- Generic7,872 claims90%
- Brand-name784 claims9%
- Other124 claims1%
Dr. Nelson'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 Dr. Nelson's Part D claims, 2024
- Opioids1%85 of 8,780 claims
- Antibiotics0%13 of 8,780 claims
- Antipsychotics, patients 65 and over5%480 of 8,780 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: 7,0652024: 8,42419%
Drugs named by CMS: 96 in 2024, 78 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
Dr. Mark A. Nelson scored 68 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 68 out of 100 for Dr. Nelson for performance year 2024, reported individually. Dr. Nelson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Nelson as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Nelson's MIPS scores, performance year 2024
- 68of 100Final score
- 63.9of 100Quality
- 60of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Mark A. Nelson received $17,709 in industry payments from 2016 to 2025
CMS Open Payments shows 950 general payments to Dr. Nelson from 74 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Abbvie Inc. paid the most, $1,844.
General payments to Dr. Nelson by program year, 2016 to 2025
General payments to Dr. Nelson by kind, 2016 to 2025
- Food and beverage$17,52599%
- Speaker and faculty fees$1711%
- Education$130%
Companies that paid Dr. Nelson the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark A. Nelson graduated from NYIT College Of Osteopathic Medicine
Dr. Nelson graduated from NYIT College Of Osteopathic Medicine in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark A. Nelson'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 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)Clinician Public Reporting: Overall MIPS Performance (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. Mark A. Nelson
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. Mark A. Nelson's NPI number?
Dr. Mark A. Nelson's NPI number is 1922084409. It was assigned on December 16, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark A. Nelson?
Dr. Mark A. Nelson is a neurologist in Lynbrook, New York. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Mark A. Nelson practice?
Dr. Nelson practices at 777 Sunrise Hwy, Lynbrook, NY 11563. Dr. Nelson's primary practice is Long Island Neurology Consultants in Lynbrook, New York. Dmand AI also links Dr. Nelson to 1 hospital and 1 group practice or clinic.
What is Dr. Mark A. Nelson's office phone number?
The practice phone on file for Dr. Nelson is (516) 887-3516.
What is Dr. Mark A. Nelson's medical license number?
Dr. Nelson holds New York license 198019.
Which hospitals is Dr. Mark A. Nelson affiliated with?
Dr. Nelson is affiliated with North Shore University Hospital. Dmand AI links Dr. Nelson to 1 more hospital.
What medical group is Dr. Mark A. Nelson part of?
Dr. Nelson is linked to Long Island Neurology Consultants.
Does Dr. Mark A. Nelson accept Medicare?
Yes. CMS data shows Dr. Nelson billed Medicare for 3,949 services in 2024, and Dr. Nelson accepts Medicare assignment.
Does Dr. Mark A. Nelson offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Nelson as offering telehealth services.
What is Dr. Mark A. Nelson's MIPS score?
Dr. Nelson's MIPS final score for performance year 2024 is 68 out of 100, reported individually.
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How many Medicare patients does Dr. Mark A. Nelson see?
CMS counts 1,242 Medicare patients who saw Dr. Nelson in 2024, with an average age of 75.
What services does Dr. Mark A. Nelson bill to Medicare?
In 2024, Dr. Nelson's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and nerve and brain test (95886).
Where did Dr. Mark A. Nelson go to medical school?
Dr. Nelson graduated from NYIT College Of Osteopathic Medicine in 1992.
What drugs does Dr. Mark A. Nelson prescribe most?
In 2024 Medicare Part D data, Dr. Nelson's most prescribed drugs by claims were Donepezil HCl, Memantine HCl and Gabapentin.
Has Dr. Mark A. Nelson received payments from drug or device companies?
CMS Open Payments shows $17,709 in general payments to Dr. Nelson from 74 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Mark A. Nelson been practicing?
Dr. Nelson graduated from medical school in 1992, 34 years ago.
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