1. Home
  2. Directory
  3. Connecticut
  4. Westport
  5. Psychiatry Neurology
  6. NPI Profile

DR. SINA NIKAYIN MD
NPI 1740717560
Psychiatry & Neurology - Psychiatry in Westport, CT

Active since May 11, 2017PECOS EnrolledAccepts Medicare Assignment
75.96/100
CMS Quality Rating
129 KINGS HWY N, WESTPORT, CT 06880(203) 707-2000(203) 707-1999 Get Directions Write a Review

NPPES record last updated: September 4, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 4, 2025, Mar 21, 2025, Jun 29, 2020 and 1 more (4 updates tracked since 2017).

About Dr. Sina Nikayin Md NPPES

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

DR. SINA NIKAYIN MD (NPI 1740717560) is an individual psychiatry provider in Westport, Connecticut, licensed in Connecticut (66272) and active in the NPI registry since May 2017. He is enrolled in Medicare PECOS, maintains a secondary practice location in New Haven, and is a graduate of Other (2014).

NPPES Registry Identity

NPI1740717560
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. SINA NIKAYINCredential: MD
Location Address129 KINGS HWY NWestport, CT 06880-2438
Mailing Address129 Kings Hwy NWestport, CT 06880-2438 · (203) 707-2000 · Fax (203) 707-1907
Phone(203) 707-2000
Fax(203) 707-1999
Sole ProprietorYes
Medical School CMSOtherGraduated 2014
Enumeration DateMay 11, 2017
Last NPPES UpdateSeptember 4, 20254 updates tracked since enumeration
NPPES CertifiedSeptember 4, 2025
✔ NPI 1740717560 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CT · 66272
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
129 KINGS HWY N, Westport, CT 06880
Open in Google Maps ↗

Secondary Practice Location 1

Location 1300 George St Ste 901New Haven, CT 06511-6662 · Phone (203) 785-2095

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

Dr. Sina Nikayin 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 ID42611188
PECOS Enrollment IDI20210628001768
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 2

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.

Therapy using electrical currents 90870
Therapy using electrical currents, also known as electrotherapy, involves applying small electrical pulses to your body to stimulate healing. It can help manage pain, improve circulation, repair tissues, and strengthen muscles. It's a safe, non-invasive treatment often used in physical therapy.
169 services27 patients
Office or other outpatient visit for the evaluation and management of an established patient that requires the supervision of a physician or other qualified health care professional and provision of greater than 56 mg esketamine nasal self-administration, G2083
This is a routine office visit for existing patients needing physician supervision for esketamine nasal self-administration, a medication used for certain mental health conditions. More than 56 mg will be administered. The visit includes evaluation and ongoing management of your health.
79 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06880 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
$183.10 typical visit price
range $60.82 – $183.10
Typical copayment $45.77 (range $15.20 – $45.77)
Most-billed visit code 99205
Established Patient
$75.55 typical visit price
range $19.76 – $149.26
Typical copayment $18.88 (range $4.94 – $37.31)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

75.96/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality99
Promoting Interoperability75
Improvement Activities40
Cost10

Other Providers at the Same Location NPPES 16

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

DOCTOR & ASSOCIATES, PC
Ophthalmology
129 KINGS HWY N
WESTPORT, CT 06880
Western Connecticut Planning Region (203) 227-4113
DR. SPIRO COMBEST MD
Ophthalmology
129 KINGS HWY N
WESTPORT, CT 06880
Western Connecticut Planning Region (203) 227-4113
MARTHA ODETTE LAGO-WURSTER ACUPUNCTURIST
Acupuncturist
129 KINGS HWY N
WESTPORT, CT 06880
Western Connecticut Planning Region (203) 253-3791
RUMI MIND HEALTH PROVIDERS OF CT
Psychiatry & Neurology (Psychiatry)
129 KINGS HWY N
WESTPORT, CT 06880
Western Connecticut Planning Region (203) 707-2000
REED WANG LAC., MD
Acupuncturist
129 KINGS HWY N, TOP LEVEL
WESTPORT, CT 06880
Western Connecticut Planning Region (212) 810-1268
KYLE CUSTIS M.D.
Family Medicine
129 KINGS HWY N
WESTPORT, CT 06880
Western Connecticut Planning Region (203) 221-3030
DR. THOMAS J ABRAHAMSEN DPM
Podiatrist (Foot & Ankle Surgery)
129 KINGS HWY N
WESTPORT, CT 06880
Western Connecticut Planning Region (203) 226-9430
WESTPORT FAMILY MEDICINE LLC
Family Medicine
129 KINGS HWY N
WESTPORT, CT 06880
Western Connecticut Planning Region (203) 221-3030

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 Sina Nikayin's NPI number?

The NPI number for Sina Nikayin is 1740717560. It was assigned to this individual provider in the NPPES registry on May 11, 2017.

Where is Sina Nikayin located?

Sina Nikayin practices at 129 Kings Hwy N, Westport, CT 06880. The listed phone number is (203) 707-2000.

What is Sina Nikayin's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Sina Nikayin enrolled in Medicare?

Yes. Sina Nikayin 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.

When was this NPI record last updated?

The NPPES record for Sina Nikayin was last updated on September 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.