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DR. LEILA MONTASER MONTASER KOUHSARI M.D., PH.D.
NPI 1386063808
Psychiatry & Neurology - Behavioral Neurology & Neuropsychiatry in Boston, MA

Active since April 11, 2014PECOS EnrolledAccepts Medicare Assignment
76.5/100
CMS Quality Rating
60 FENWOOD RD FL 4, BOSTON, MA 02115(617) 732-5500 Get Directions Write a Review

NPPES record last updated: December 22, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 8, 2023, Sep 25, 2020, May 15, 2019 (3 updates tracked since 2019).

About Dr. Leila Montaser Montaser Kouhsari M.d., Ph.d. NPPES

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

DR. LEILA MONTASER MONTASER KOUHSARI M.D., PH.D. (NPI 1386063808) is an individual behavioral neurology & neuropsychiatry provider in Boston, Massachusetts, licensed in Massachusetts (1015812) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1386063808
Entity TypeIndividualFemale
Primary Taxonomy2084B0040X
Provider Legal NameDR. LEILA MONTASER MONTASER KOUHSARICredential: M.D., PH.D.
Location Address60 FENWOOD RD FL 4Boston, MA 02115-6128
Mailing Address60 Fenwood Rd Fl 4Boston, MA 02115-6128
Phone(617) 732-5500
Sole ProprietorNo
Medical School CMSOtherGraduated 2004
Enumeration DateApril 11, 2014
Last NPPES UpdateDecember 22, 20233 updates tracked since enumeration
NPPES CertifiedDecember 22, 2023
✔ NPI 1386063808 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · Behavioral Neurology & NeuropsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084B0040X
License✔ Licensed in MA · 1015812
Definition
Behavioral Neurology & Neuropsychiatry is a medical subspecialty involving the diagnosis and treatment of neurologically based behavioral issues.
Also ListedPsychiatry & Neurology · NeurologyTaxonomy 2084N0400X · License 290159 (NY), A159938 (CA), 1015812 (MA)
60 FENWOOD RD FL 4, Boston, MA 02115
Open in Google Maps ↗

Secondary Practice Locations 3

Location 1300 Pasteur DrStanford, CA 94305-2200 · Phone (650) 723-4000
Location 2355 Bard Ave, Department of Medicine, Villa Bldg 1st floorStaten Island, NY 10310-1664 · Phone (718) 818-2419
Location 3710 W 168th StNew York, NY 10032 · Phone (646) 426-3876

Other Identifiers 1

Other390200000XNY · Student, Health Care

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. Leila Montaser Montaser Kouhsari M.d., Ph.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 ID3274882568
PECOS Enrollment IDI20230925000510
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

3

Medicare enrollment records show Leila Montaser Kouhsari reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Brigham & Womens Physicians Organization Inc
0.1 mi
Internal Medicine
75 FRANCIS ST
Boston, MA 02115
  • Reassigned Medicare billing, Massachusetts enrollment
  • 4,574 clinicians in this Medicare group
NPI 1033535497 (617) 732-5500
The General Hospital Corporation
2.8 mi
General Acute Care Hospital
55 FRUIT ST, BULFINCH 360
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,234 clinicians in this Medicare group
NPI 1023049236 (617) 726-2000
Massachusetts General Physicians Organization Inc
2.8 mi
Dermatology
55 FRUIT ST, BUL 2
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,360 clinicians in this Medicare group
NPI 1801874573 (617) 724-0287

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 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.

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212
This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.
267 services129 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.
160 services106 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.
103 services103 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.
18 services13 patients

Hospital Affiliations CMS Care Compare 5

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

Massachusetts General Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220071
Location55 Fruit StreetBoston, MA 02114 · Suffolk County
Emergency services Birthing friendly

Newton-Wellesley Hospital

Acute Care Hospitals · Newton, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220101
Location2014 Washington StreetNewton, MA 02462 · Middlesex County
Emergency services Birthing friendly

Brigham And Women's Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220110
Location75 Francis StreetBoston, MA 02115 · Suffolk County
Emergency services Birthing friendly

Faulkner Hospital-Brigham And Women's

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220119
Location1153 Centre StreetBoston, MA 02130 · Suffolk County
Emergency services

Wentworth-Douglass Hospital

Acute Care Hospitals · Dover, NH
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300018
Location789 Central AveDover, NH 03820 · Strafford County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02115 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
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
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.

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.

76.5/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality74.31
Promoting Interoperability100
Improvement Activities40
Cost43.95

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Carbidopa 5 mg/levodopa 20 mg enteral suspension, 100 ml J7340
DME-Drugs Administered Through DME · category DG000N
2 suppliers11 claims308 services$168.16 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 2

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

AMY BACALIA PA
Physician Assistant
60 FENWOOD RD FL 4
BOSTON, MA 02115
Suffolk County (857) 307-2309
DR. MELINA MORE BERTOTTI MD
Student in an Organized Health Care Education/Training Program
60 FENWOOD RD FL 4
BOSTON, MA 02115
Suffolk County (857) 307-2312

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 Leila Montaser Kouhsari's NPI number?

The NPI number for Leila Montaser Kouhsari is 1386063808. It was assigned to this individual provider in the NPPES registry on April 11, 2014.

Where is Leila Montaser Kouhsari located?

Leila Montaser Kouhsari practices at 60 Fenwood Rd Fl 4, Boston, MA 02115. The listed phone number is (617) 732-5500.

What is Leila Montaser Kouhsari's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Behavioral Neurology & Neuropsychiatry, with taxonomy code 2084B0040X.

Is Leila Montaser Kouhsari enrolled in Medicare?

Yes. Leila Montaser Kouhsari 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 Leila Montaser Kouhsari's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Leila Montaser Kouhsari reassigns Medicare benefits to 3 organizations: Brigham & Womens Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA) and Massachusetts General Physicians Organization Inc (Boston, MA). 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 Leila Montaser Kouhsari's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Leila Montaser Kouhsari affiliated with any hospitals?

According to CMS data, Leila Montaser Kouhsari is affiliated with Massachusetts General Hospital, Newton-Wellesley Hospital, Brigham And Women's Hospital, Faulkner Hospital-Brigham And Women's and Wentworth-Douglass Hospital.

When was this NPI record last updated?

The NPPES record for Leila Montaser Kouhsari was last updated on December 22, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.