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YLEC MARIANA CARDENAS CASTILLO M.D.
NPI 1770967549
Psychiatry & Neurology - Neuromuscular Medicine in New Haven, CT

Active since July 11, 2015PECOS EnrolledAccepts Medicare Assignment
73.56/100
CMS Quality Rating
800 HOWARD AVE LOWR LEVEL, NEW HAVEN, CT 06519(203) 737-6050(203) 785-4960 Get Directions Write a Review

NPPES record last updated: September 7, 2021. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Sep 7, 2021, May 28, 2019 (2 updates tracked since 2019).

About Ylec Mariana Cardenas Castillo M.d. NPPES

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

YLEC MARIANA CARDENAS CASTILLO M.D. (NPI 1770967549) is an individual neuromuscular medicine provider in New Haven, Connecticut, licensed in Connecticut (64082) and active in the NPI registry since July 2015. She is enrolled in Medicare PECOS, maintains a secondary practice location in Philadelphia, and is a graduate of Other (2010).

NPPES Registry Identity

NPI1770967549
Entity TypeIndividualFemale
Primary Taxonomy2084N0008X
Provider Legal NameYLEC MARIANA CARDENAS CASTILLOCredential: M.D.
Location Address800 HOWARD AVE LOWR LEVELNew Haven, CT 06519-1369
Mailing Address800 Howard Ave Lowr LevelNew Haven, CT 06519-1369 · (203) 737-6050 · Fax (203) 785-4960
Phone(203) 737-6050
Fax(203) 785-4960
Sole ProprietorYes
Medical School CMSOtherGraduated 2010
Enumeration DateJuly 11, 2015
Last NPPES UpdateSeptember 7, 20212 updates tracked since enumeration
NPPES CertifiedSeptember 7, 2021
✔ NPI 1770967549 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · Neuromuscular MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2084N0008X
License✔ Licensed in CT · 64082
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).
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License MT208366 (PA)
800 HOWARD AVE LOWR LEVEL, New Haven, CT 06519
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Secondary Practice Location 1

Location 15501 Old York RdPhiladelphia, PA 19141-3018 · Phone (215) 456-8520 · Fax (215) 455-1933

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

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

Ylec Mariana Cardenas Castillo 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 ID9436574639
PECOS Enrollment IDI20200805001679
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

4

Medicare enrollment records show Ylec Cardenas Castillo reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Yale University
0.4 mi
Advanced Practice Midwife
100 CHURCH ST S STE 200, YALE SCHOOL OF NURSING
New Haven, CT 06519
  • Reassigned Medicare billing, Connecticut enrollment
  • 3,728 clinicians in this Medicare group
NPI 1124148887 (203) 737-5432
Midstate Medical Center
18 mi
General Acute Care Hospital
435 LEWIS AVE
Meriden, CT 06451
  • Reassigned Medicare billing, Connecticut enrollment
  • 505 clinicians in this Medicare group
NPI 1154425288 (860) 696-6287
Hartford Hospital
34 mi
Surgery
80 SEYMOUR ST, HARTFORD HOSPITAL PROFESSIONAL SERVICES
Hartford, CT 06102
  • Reassigned Medicare billing, Connecticut enrollment
  • 1,333 clinicians in this Medicare group
NPI 1407806391 (860) 545-7602
Hartford Healthcare Medical Group Specialists, PLLC
34 mi
Surgery
85 SEYMOUR ST STE 415
Hartford, CT 06106
  • Reassigned Medicare billing, Connecticut enrollment
  • 1,921 clinicians in this Medicare group
NPI 1023584216 (860) 246-2071

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 5

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
30 services20 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
22 services21 patients
Needle measurement of electrical activity in arm or leg muscles, limited study 95885
This procedure, known as an electromyography (EMG), involves placing tiny needles into your arm or leg muscles to measure their electrical activity. It's a limited study, meaning only specific muscles are tested. This helps identify any muscle or nerve dysfunction.
20 services16 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
20 services20 patients
Needle measurement of electrical activity in arm or leg muscles, complete study 95886
This procedure, known as an electromyography (EMG), involves inserting a small needle into your arm or leg muscles to measure their electrical activity. This complete study helps diagnose issues with nerves or muscles, providing valuable data for your treatment plan.
15 services14 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.

73.56/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality75.84
Promoting Interoperability74
Improvement Activities40
Cost51.43

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.

DR. BENJAMIN DAVID TOLCHIN M.D., M.S.
Psychiatry & Neurology (Neurology)
800 HOWARD AVE LOWR LEVEL, YALE DEPARTMENT OF NEUROLOGY
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 785-4085
RICHA SHARMA
Psychiatry & Neurology (Neurology)
800 HOWARD AVE LOWR LEVEL
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 927-0723
MATTHEW VINCENT PUCCETTI MD, PHD
Psychiatry & Neurology (Neurology)
800 HOWARD AVE LOWR LEVEL
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (877) 925-3637
HAE-YOUNG HAWONG D.O. PHD
Psychiatry & Neurology (Neurology)
800 HOWARD AVE LOWR LEVEL
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (877) 925-3637
DR. BENISON HO-WAN KEUNG MD
Psychiatry & Neurology (Neurology)
800 HOWARD AVE LOWR LEVEL
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 785-4085
DR. AMAR PATEL M.D.
Psychiatry & Neurology (Neurology)
800 HOWARD AVE LOWR LEVEL
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 785-4085
PALLAVI JUNEJA MD
Psychiatry & Neurology (Neurology)
800 HOWARD AVE LOWR LEVEL
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (877) 925-3637
DR. CAROLYN ANNE FREDERICKS M.D.
Psychiatry & Neurology (Neurology)
800 HOWARD AVE LOWR LEVEL
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 785-4085

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 Ylec Cardenas Castillo's NPI number?

The NPI number for Ylec Cardenas Castillo is 1770967549. It was assigned to this individual provider in the NPPES registry on July 11, 2015.

Where is Ylec Cardenas Castillo located?

Ylec Cardenas Castillo practices at 800 Howard Ave Lowr Level, New Haven, CT 06519. The listed phone number is (203) 737-6050.

What is Ylec Cardenas Castillo's specialty?

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

Is Ylec Cardenas Castillo enrolled in Medicare?

Yes. Ylec Cardenas Castillo 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 Ylec Cardenas Castillo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ylec Cardenas Castillo reassigns Medicare benefits to 4 organizations: Yale University (New Haven, CT), Midstate Medical Center (Meriden, CT), Hartford Hospital (Hartford, CT) and Hartford Healthcare Medical Group Specialists, PLLC (Hartford, CT). 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 Ylec Cardenas Castillo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ylec Cardenas Castillo accept?

Health plans from Anthem Blue Cross and Blue Shield list Ylec Cardenas Castillo 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 Ylec Cardenas Castillo was last updated on September 7, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.