Dr. Louis Weimer, MD

  • New York, NY
  • Neurologist
NPI1356357404PAC ID0244247153
Medicare services, 2024
841
Medicare patients, 2024
278
Part D claims, 2024
547
Publications
35
MIPS score, 2024
100
Practice address
630 W 168th St, New York, NY 10032
Practice phone
Call (212) 342-5155
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Trustees of Columbia University in the City of NY

New York, New York

See all 4 affiliations

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Dr. Louis Weimer is a neurologist in New York, New York

Dr. Weimer practices at Trustees of Columbia University in the City of NY in New York, New York.

Dr. Weimer's NPI, 1356357404, was assigned on July 31, 2006. Dr. Weimer graduated from Emory School of Medicine in 1988. Dr. Weimer holds New York license 183480-1.

NPI and contact details
Medicare PAC ID
0244247153
NPI enumeration date
July 31, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(212) 342-5155
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
64
Medical school graduation
1988

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Louis Weimer practices at Trustees of Columbia University in the City of NY in New York, New York

Dr. Weimer's primary practice is Trustees of Columbia University in the City of NY, at 630 W 168th St, New York, NY 10032 in New York County. The practice phone is (212) 342-5155.

  • Trustees of Columbia University in the City of NY
    630 W 168th St, New York, NY 10032 · New York CountyPhone(212) 342-5155

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Louis Weimer is affiliated with 3 sites of care and 1 medical group

Dr. Weimer's primary practice is Trustees of Columbia University in the City of NY in New York, New York. Dr. Weimer is also affiliated with NewYork-Presbyterian/Weill Cornell Medical Center. The medical group on file is ColumbiaDoctors. Dmand AI also links Dr. Weimer to 1 more group practice or clinic, named with a free account.

See all 4 affiliations for Dr. Weimer

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Louis Weimer's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Weimer practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Trustees of Columbia University in the City of NYAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Louis Weimer is one of 1,489 neurologists in New York

Neurology is Dr. Weimer's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Weimer is board certified in neurology by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Weimer's licenses on file in 4 states: New York, Florida, New Jersey and Connecticut.

Specialties and state licenses

  • Neurology, New YorkPrimaryLicense 183480-1 · 1990 to 2026 · taxonomy 2084N0400X
  • Florida licenseSince 2021
  • New Jersey license2021 to 2027
  • Connecticut license2022 to 2025

Clinical focus

Dmand AI lists epilepsy, hereditary polyneuropathy, lower back pain, migraine and chronic headache, muscle disease, muscle pain, fibromyalgia, and limb pain, neuropathy and parkinson's disease among the conditions Dr. Weimer treats.

Neurologists near Dr. Weimer

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. Louis Weimer billed Medicare for 841 services in 2024

CMS data shows 841 Medicare services from Dr. Weimer across 14 procedure codes in 2024, for 278 Medicare patients. Medicare paid $85,289 for them. Every service was in an office.

Medicare services, 2024841
Medicare patients278
Paid by Medicare$85,289
Procedure codes14

Dr. Weimer's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Tests and treatments
2023: 2852024: 2985%
Office and hospital visits
2023: 2652024: 2795%
Other services
2023: 02024: 264

Dr. Weimer compared with the New York median for neurologists, 2024

  • Dr. Weimer
  • New York median
Medicare services
841vs 3762.2 times
Medicare patients
278vs 19046% above
Part D claims
460vs 37523% above

Medians across 1,462 neurologists in New York with Dmand AI profiles that report each measure.

Dr. Weimer'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.

See all procedures by Dr. Weimer

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Louis Weimer treated 278 Medicare patients in 2024, average age 70

CMS counts 278 Medicare patients who saw Dr. Weimer in 2024. The largest group is 65 to 74, with 129 patients. 75% of them have high cholesterol, and 69% have high blood pressure. 11% are also on Medicaid. Their average risk score is 1.62, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Weimer's median patient age at 53, with 63% women.

Medicare patients, 2024278
Average age70
Average risk score1.62
Also on Medicaid11%

Dr. Weimer's Medicare patients by age, 2024

Dr. Weimer's Medicare patients by sex, 2024

  • Women14050%
  • Men13850%

Chronic conditions among Dr. Weimer's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure69%
  3. Arthritis63%
  4. Anxiety36%
  5. Ischemic heart disease33%
  6. Mood disorders32%
  7. Depression28%
  8. Diabetes28%

Share of Medicare patients with each condition. A patient can have several.

Dr. Weimer's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 53

Patient panel by sex, all payers

  • Women63%
  • Men33%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Louis Weimer wrote 547 Medicare Part D claims in 2024

In 2024, Dr. Weimer wrote 547 Medicare Part D claims for 93 patients. 74% of them were for generic drugs. CMS names the drug for 460 of them, across 14 drugs with 11 or more claims each, at $1,906,500 in total drug cost. In 2023, CMS named 429 claims across 13 drugs.

Part D claims, 2024547
Drugs named by CMS14
Total drug cost$1.9M
Part D patients93

Dr. Weimer's Part D claims by kind of drug, 2024

  • Generic406 claims74%
  • Brand-name141 claims26%

Dr. Weimer'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. Weimer's Part D claims, 2024

  • Opioids2%11 of 547 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: 4292024: 4607%

Drugs named by CMS: 14 in 2024, 13 in 2023.

See all prescribing by Dr. Weimer

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. Louis Weimer scored 100 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Weimer for performance year 2024, reported through an alternative payment model (APM). Dr. Weimer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Weimer as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Weimer's MIPS scores, performance year 2024

  • 100of 100Final score
  • 85.3of 100Quality
  • 100of 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. Louis Weimer has 35 publications on record

Dmand AI links 35 papers to Dr. Weimer, published from 2002 to 2024. 2023 was the busiest year, with 3. The most frequent topics are Electromyography, Peripheral Nervous System Diseases and Neural Conduction. Dr. Weimer has published most often in Muscle Nerve. Dr. Weimer's most frequent co-authors are Thomas H. Brannagan, MD, Wendy Chung, MD and Clifton L. Gooch, MD.

Papers35
Years published2002 to 2024

Dr. Weimer's papers by year, 2004 to 2024

Topics Dr. Weimer writes about most

  • Electromyography
  • Peripheral Nervous System Diseases
  • Neural Conduction
  • Action Potentials
  • Demyelinating Diseases
  • Electrodiagnosis
  • Motor Neuron Disease
  • Muscle, Skeletal

Dr. Weimer's most frequent co-authors

Recent publications by Dr. Weimer

See all 35 publications and co-authors

See who Dr. Weimer researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Weimer works with, so you can find a warm path to the right neurologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Louis Weimer received $126,143 in industry payments from 2016 to 2025

CMS Open Payments shows 299 general payments to Dr. Weimer from 29 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 89% of the total. Genentech, Inc. paid the most, $117,499. It also lists 8 research payments totaling $1,104 in 2025, naming 1 clinical trial.

General payments to Dr. Weimer by program year, 2016 to 2025

General payments to Dr. Weimer by kind, 2016 to 2025

$126.1Kin total
  • Consulting fees$111,83589%
  • Travel and lodging$8,8097%
  • Food and beverage$5,2734%
  • Speaker and faculty fees$2260%

Companies that paid Dr. Weimer the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Weimer

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Louis Weimer graduated from Emory School of Medicine

Dr. Weimer graduated from Emory School of Medicine in 1988. Dr. Weimer is a member of AAN.

  1. Medical schoolEmory School of Medicine
  2. Board certified in neurologyAmerican Board of Psychiatry and Neurology
  3. Board certified in neuromuscular medicineAmerican Board of Psychiatry and Neurology

Source: Dmand AI Professional Profile Data

Dr. Louis Weimer accepts plans from 13 insurance carriers

Dr. Weimer is in network with 13 carriers, including Elevance, Aetna and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

Plan types Dr. Weimer accepts, by number of carriers

  1. PPO10
  2. Medicare9
  3. EPO4
  4. POS4
  5. HMO3
  6. Medicaid3

Source: Dmand AI Insurance Network Data

Sources for Dr. Louis Weimer's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Louis Weimer

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. Louis Weimer's NPI number?

Dr. Louis Weimer's NPI number is 1356357404. It was assigned on July 31, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Louis Weimer?

Dr. Louis Weimer is a neurologist in New York, New York. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).

Where does Dr. Louis Weimer practice?

Dr. Weimer practices at 630 W 168th St, New York, NY 10032. Dr. Weimer's primary practice is Trustees of Columbia University in the City of NY in New York, New York. Dmand AI also links Dr. Weimer to 1 group practice or clinic.

What is Dr. Louis Weimer's office phone number?

The practice phone on file for Dr. Weimer is (212) 342-5155.

What is Dr. Louis Weimer's medical license number?

Dr. Weimer holds New York license 183480-1, one of the licenses on file in 4 states.

Which states has Dr. Louis Weimer been licensed in?

Dmand AI has state licenses on file for Dr. Weimer in New York (1990 to 2026), Florida (since 2021), New Jersey (2021 to 2027) and Connecticut (2022 to 2025).

Which hospitals is Dr. Louis Weimer affiliated with?

Dr. Weimer is affiliated with NewYork-Presbyterian/Weill Cornell Medical Center.

What medical group is Dr. Louis Weimer part of?

Dr. Weimer is linked to ColumbiaDoctors.

Does Dr. Louis Weimer accept Medicare?

Yes. CMS data shows Dr. Weimer billed Medicare for 841 services in 2024, and Dr. Weimer accepts Medicare assignment.

Does Dr. Louis Weimer offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Weimer as offering telehealth services.

Show 11 more questionsShow fewer questions

What is Dr. Louis Weimer's MIPS score?

Dr. Weimer's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).

How many Medicare patients does Dr. Louis Weimer see?

CMS counts 278 Medicare patients who saw Dr. Weimer in 2024, with an average age of 70.

Is Dr. Louis Weimer board certified?

Yes. Dr. Weimer is board certified in neurology by the American Board of Psychiatry and Neurology.

What services does Dr. Louis Weimer bill to Medicare?

In 2024, Dr. Weimer's most billed Medicare services were medicare service (G2211), office visit, established patient (99215) and nerve and brain test (95886).

Where did Dr. Louis Weimer go to medical school?

Dr. Weimer graduated from Emory School of Medicine in 1988.

What drugs does Dr. Louis Weimer prescribe most?

In 2024 Medicare Part D data, Dr. Weimer's most prescribed drugs by claims were Pyridostigmine Bromide, Gabapentin and Gammagard Liquid.

Has Dr. Louis Weimer received payments from drug or device companies?

CMS Open Payments shows $126,143 in general payments to Dr. Weimer from 29 companies from 2016 to 2025. The largest total came from Genentech, Inc.

How long has Dr. Louis Weimer been practicing?

Dr. Weimer graduated from medical school in 1988, 38 years ago.

Does Dr. Louis Weimer do research?

Dmand AI links 35 publications to Dr. Weimer, published from 2002 to 2024.

Who does Dr. Louis Weimer publish with?

Dr. Weimer's most frequent co-authors are Thomas H. Brannagan, MD (6 shared papers), Wendy Chung, MD (4 shared papers) and Clifton L. Gooch, MD (4 shared papers).

What insurance does Dr. Louis Weimer accept?

Dr. Weimer is in network with 13 carriers, including Elevance, Aetna and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

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