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DR. KEITH SILLER M.D.
NPI 1992714927
Psychiatry & Neurology - Neurology in Manhasset, NY

Active since August 07, 2006PECOS EnrolledAccepts Medicare Assignment
1615 NORTHERN BLVD STE 105, MANHASSET, NY 11030(516) 415-0514(516) 277-2277 Get Directions Write a Review

NPPES record last updated: January 8, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 8, 2026, Dec 23, 2025, Jun 12, 2024 and 1 more (4 updates tracked since 2017).

About Dr. Keith Siller M.d. NPPES

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

DR. KEITH SILLER M.D. (NPI 1992714927) is an individual neurology provider in Manhasset, New York, licensed in New York (183913-1) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with St Francis Hospital - The Heart Center, and is a graduate of New York University School Of Medicine (1989).

NPPES Registry Identity

NPI1992714927
Entity TypeIndividualMale
Primary Taxonomy2084N0400X
Provider Legal NameDR. KEITH SILLERCredential: M.D.
Location Address1615 NORTHERN BLVD STE 105Manhasset, NY 11030-3033
Mailing Address1615 Northern Blvd Ste 105Manhasset, NY 11030-3033 · (516) 415-0514 · Fax (516) 415-0514
Phone(516) 415-0514
Fax(516) 277-2277
Sole ProprietorYes
Medical School CMSNew York University School Of MedicineGraduated 1989
Enumeration DateAugust 7, 2006
Last NPPES UpdateJanuary 8, 20264 updates tracked since enumeration
NPPES CertifiedJanuary 8, 2026
✔ NPI 1992714927 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
License✔ Licensed in NY · 183913-1
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
1615 NORTHERN BLVD STE 105, Manhasset, NY 11030
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Other Identifiers 9

Other1340288271199
Other134028827Aetna Ppo
Other183913Hip
Other0260620Cigna
Other134028827Aetna Hmo
Other134028827United Healthcare
Other0M0825Healthnet
Other134028827Empire United
Other3001206Ghi

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

Dr. Keith Siller M.d. 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 ID8022132075
PECOS Enrollment IDI20100828000002
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 Reassignments

2

Medicare enrollment records show Keith Siller reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Keith A Siller MD PC
Same address
Neurology
1615 NORTHERN BLVD STE 105
Manhasset, NY 11030
  • Reassigned Medicare billing, New York enrollment
NPI 1366944688 (516) 415-0514
St. Peter's Health Partners Medical Associates, P.C.
128 mi
Internal Medicine
1240 NEW SCOTLAND RD SUITE 205
Slingerlands, NY 12159
  • Reassigned Medicare billing, New York enrollment
  • 742 clinicians in this Medicare group
NPI 1568707222 (518) 475-9235

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

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
498 services132 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
235 services145 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
161 services148 patients
Telephone medical discussion with physician, 21-30 minutes 99443
This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.
110 services78 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
77 services77 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
45 services37 patients

Hospital Affiliations CMS Care Compare 2

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

St Francis Hospital - The Heart Center

Acute Care Hospitals · Roslyn, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number330182
Location100 Port Washington BoulevardRoslyn, NY 11576 · Nassau County
Emergency services

Long Island Jewish Medical Center

Acute Care Hospitals · New Hyde Park, NY
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330195
Location270 - 05 76th AvenueNew Hyde Park, NY 11040 · Nassau County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11030 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$154.28 typical visit price
range $67.40 – $203.53
Typical copayment $38.57 (range $16.85 – $50.88)
Most-billed visit code 99204
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KEITH A SILLER MD PC
Psychiatry & Neurology (Neurology)
1615 NORTHERN BLVD STE 105
MANHASSET, NY 11030
Nassau County (516) 415-0514

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 Keith Siller's NPI number?

The NPI number for Keith Siller is 1992714927. It was assigned to this individual provider in the NPPES registry on August 7, 2006.

Where is Keith Siller located?

Keith Siller practices at 1615 Northern Blvd Ste 105, Manhasset, NY 11030. The listed phone number is (516) 415-0514.

What is Keith Siller's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Keith Siller enrolled in Medicare?

Yes. Keith Siller 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 organizations bill Medicare for Keith Siller's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Keith Siller reassigns Medicare benefits to 2 organizations: Keith A Siller MD PC (Manhasset, NY) and St. Peter's Health Partners Medical Associates, P.C. (Slingerlands, NY). Each 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 Keith Siller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Keith Siller affiliated with any hospitals?

According to CMS data, Keith Siller is affiliated with St Francis Hospital - The Heart Center and Long Island Jewish Medical Center.

When was this NPI record last updated?

The NPPES record for Keith Siller was last updated on January 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.