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LUKE KIEFER MD
NPI 1346821238
Psychiatry & Neurology - Neuromuscular Medicine in New York, NY

Active since April 21, 2021PECOS EnrolledAccepts Medicare Assignment
1468 MADISON AVE FL 2, NEW YORK, NY 10029(310) 850-5579 Get Directions Write a Review

NPPES record last updated: April 14, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 14, 2026, Apr 21, 2021 (2 updates tracked since 2021).

About Luke Kiefer Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

LUKE KIEFER MD (NPI 1346821238) is an individual neuromuscular medicine provider in New York, New York, licensed in New York (336891) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with Mount Sinai Hospital, and is a graduate of Creighton University School Of Medicine (2021).

NPPES Registry Identity

NPI1346821238
Entity TypeIndividualMale
Primary Taxonomy2084N0008X
Provider Legal NameLUKE KIEFERCredential: MD
Location Address1468 MADISON AVE FL 2New York, NY 10029-6508
Mailing Address1468 Madison Ave Fl 2New York, NY 10029-6508 · (310) 850-5579
Phone(310) 850-5579
Sole ProprietorNo
Medical School CMSCreighton University School Of MedicineGraduated 2021
Enumeration DateApril 21, 2021
Last NPPES UpdateApril 14, 20262 updates tracked since enumeration
NPPES CertifiedApril 14, 2026
✔ NPI 1346821238 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · Neuromuscular MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2084N0008X
License✔ Licensed in NY · 336891
Definition
A neurologist or child neurologist who specializes in the diagnosis and management of disorders of nerve, muscle or neuromuscular junction, including amyotrophic lateral sclerosis, peripheral neuropathies (e.g., diabetic and immune mediated neuropathies), various muscular dystrophies, congenital and acquired myopathies, inflammatory myopathies (e.g., polymyositis, inclusion body myositis) and neuromuscular transmission disorders (e.g., myasthenia gravis, Lambert-Eaton myasthenic syndrome).
1468 MADISON AVE FL 2, New York, NY 10029
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Luke Kiefer Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6204308133
PECOS Enrollment IDI20260611002948
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Luke Kiefer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Icahn School Of Medicine At Mount Sinai
0.2 mi
Neurological Surgery
5 EAST 98 STREET 7TH FLOOR
Newyork, NY 10029
  • Reassigned Medicare billing, New York enrollment
  • 233 clinicians in this Medicare group
NPI 1558627844 (212) 241-4572

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mount Sinai Hospital

Acute Care Hospitals · New York, NY
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330024
LocationOne Gustave L Levy PlaceNew York, NY 10029 · New York County
Emergency services Birthing friendly

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Luke Kiefer's NPI number?

The NPI number for Luke Kiefer is 1346821238. It was assigned to this individual provider in the NPPES registry on April 21, 2021.

Where is Luke Kiefer located?

Luke Kiefer practices at 1468 Madison Ave Fl 2, New York, NY 10029. The listed phone number is (310) 850-5579.

What is Luke Kiefer's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neuromuscular Medicine, with taxonomy code 2084N0008X.

Is Luke Kiefer enrolled in Medicare?

Yes. Luke Kiefer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Luke Kiefer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Luke Kiefer reassigns Medicare benefits to Icahn School Of Medicine At Mount Sinai (Newyork, NY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Luke Kiefer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Luke Kiefer affiliated with any hospitals?

According to CMS data, Luke Kiefer is affiliated with Mount Sinai Hospital.

When was this NPI record last updated?

The NPPES record for Luke Kiefer was last updated on April 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.