SIDDHARTHA SHYAM NADKARNI M.D.
NPI 1861400814
Psychiatry & Neurology - Epilepsy in New York, NY

Active since August 04, 2006PECOS EnrolledAccepts Medicare Assignment
100/100
CMS Quality Rating
223 E 34TH ST, NEW YORK, NY 10016(646) 558-0807 Get Directions Write a Review

NPPES record last updated: January 4, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 4, 2026, Sep 27, 2024, Jul 11, 2022 and 2 more (5 updates tracked since 2021).

About Siddhartha Shyam Nadkarni M.d. NPPES

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

SIDDHARTHA SHYAM NADKARNI M.D. (NPI 1861400814) is an individual epilepsy provider in New York, New York, licensed in New Jersey (25MA11349100) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Hackensack, and is a graduate of University Of Miami, Lm Miller School Of Medicine (1997).

NPPES Registry Identity

NPI1861400814
Entity TypeIndividualMale
Primary Taxonomy2084E0001X
Provider Legal NameSIDDHARTHA SHYAM NADKARNICredential: M.D.
Location Address223 E 34TH STNew York, NY 10016-4852
Mailing Address331 Newman Springs Rd Ste 220Red Bank, NJ 07701-5792 · (732) 807-0877 · Fax (201) 751-1680
Sole ProprietorNo
Medical School CMSUniversity Of Miami, Lm Miller School Of MedicineGraduated 1997
Enumeration DateAugust 4, 2006
Last NPPES UpdateJanuary 4, 20265 updates tracked since enumeration
NPPES CertifiedJanuary 4, 2026
NPI 1861400814 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyPsychiatry & Neurology · EpilepsyAllopathic & Osteopathic Physicians
Taxonomy Code2084E0001X
License Licensed in NJ · 25MA11349100
Definition
Epilepsy is a subspecialty of neurology focused on the diagnosis and treatment of patients with epilepsy, including new-onset, medically refractory epilepsy, psychogenic nonepileptic seizures, and epilepsy in special populations (the elderly, women, patients with co-morbidities). Epilepsy is a multidisciplinary field that provides comprehensive care of the patient.
Also ListedPsychiatry & Neurology · NeurologyTaxonomy 2084N0400X · License 25MA11349100 (NJ), 219164 (NY)
Also ListedPsychiatry & Neurology · Clinical NeurophysiologyTaxonomy 2084N0600X · License 219164 (NY)
223 E 34TH ST, New York, NY 10016

Secondary Practice Location 1

Location 1360 Essex St Ste 303Hackensack, NJ 07601-8566 · Phone (551) 996-8100 · Fax (551) 996-4140

Other Identifiers 1

Medicaid2677916NY

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Siddhartha Shyam Nadkarni 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 ID4284691684
PECOS Enrollment IDI20220324003000
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.

Areas of Expertise CMS Part B claims 4

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.

Measurement of brain wave activity with video (veeg), 12-26 hours with review and report by health care professional 95720
This procedure monitors brain wave activity over 12-26 hours using Video EEG (VEEG). It involves recording brain waves and video to detect irregularities. A healthcare professional will review the data and provide a report. It's non-invasive and safe.
124 services69 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
42 services20 patients
Measurement of brain wave activity with video (veeg), 2-12 hours with review and report by health care professional 95718
This procedure, known as a Video EEG (VEEG), records brain wave activity for 2-12 hours. It involves attaching electrodes to your scalp and monitoring brain waves while a video records your actions. This helps health professionals understand and diagnose neurological issues.
11 services11 patients
Measurement of brain wave activity (eeg), awake and drowsy 95816
Measurement of brain wave activity, also known as an EEG, is a non-invasive test that records electrical patterns in your brain. This procedure is done when you're awake and drowsy to understand how your brain functions during different states of consciousness.
11 services11 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability93
Improvement Activities40

Other Providers at the Same Location NPPES 20

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

Psychiatry & Neurology (Neurology)
223 E 34TH ST
NEW YORK, NY 10016
Clinical Neuropsychologist
223 E 34TH ST
NEW YORK, NY 10016
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
223 E 34TH ST
NEW YORK, NY 10016
Psychiatry & Neurology (Epilepsy)
223 E 34TH ST
NEW YORK, NY 10016
Psychiatry & Neurology (Neurology)
223 E 34TH ST
NEW YORK, NY 10016
Psychiatry & Neurology (Neurology)
223 E 34TH ST
NEW YORK, NY 10016
Neurological Surgery
223 E 34TH ST
NEW YORK, NY 10016
Nurse Practitioner (Family)
223 E 34TH ST
NEW YORK, NY 10016

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 Siddhartha Nadkarni's NPI number?

The NPI number for Siddhartha Nadkarni is 1861400814. It was assigned to this individual provider in the NPPES registry on August 4, 2006.

Where is Siddhartha Nadkarni located?

Siddhartha Nadkarni practices at 223 E 34th St, New York, NY 10016. The listed phone number is (646) 558-0807.

What is Siddhartha Nadkarni's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Epilepsy, with taxonomy code 2084E0001X.

Is Siddhartha Nadkarni enrolled in Medicare?

Yes. Siddhartha Nadkarni 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.

What insurance does Siddhartha Nadkarni accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Siddhartha Nadkarni as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Siddhartha Nadkarni was last updated on January 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.