Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

LILLIAN MCNAMARA NP, RN
NPI 1205519485
Nurse Practitioner - Psychiatric/Mental Health in Brooklyn, NY

Q: What is Lillian Mcnamara's NPI number?

The NPI number for Lillian Mcnamara is 1205519485. It was assigned to this individual provider in the NPPES registry on August 14, 2023. The provider is also known as Lillian Oconnor Np, Rn.

Q: What is Lillian Mcnamara's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Q: When was this NPI record last updated?

The NPPES record for Lillian Mcnamara was last updated on September 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 days 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.

Active since August 14, 2023PECOS EnrolledAccepts Medicare Assignment

348 13TH ST, BROOKLYN, NY 11215(917) 496-6547 Get Directions Write a Review

NPPES record last updated: September 15, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 15, 2026, Sep 17, 2024, Aug 14, 2023 (3 updates tracked since 2023).

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About Lillian Mcnamara Np, Rn NPPES

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

LILLIAN MCNAMARA NP, RN (NPI 1205519485) is an individual psychiatric/mental health provider in Brooklyn, New York, licensed in New York (405653) and active in the NPI registry since August 2023. She is enrolled in Medicare PECOS and is a graduate of Other (2023).

NPPES Registry Identity

NPI1205519485

Entity TypeIndividualFemale

Primary Taxonomy363LP0808X

Provider Legal NameLILLIAN MCNAMARACredential: NP, RN

Location Address348 13TH STBrooklyn, NY 11215-6177

Mailing Address279 Prescott AveStaten Island, NY 10306-3246 · (917) 496-6547 · Fax (888) 649-3690

Phone(917) 496-6547

Sole ProprietorYes

Medical School CMSOtherGraduated 2023

Enumeration DateAugust 14, 2023

Last NPPES UpdateSeptember 15, 20263 updates tracked since enumeration

NPPES CertifiedSeptember 15, 2026

✔ NPI 1205519485 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LP0808X

License✔ Licensed in NY · 405653

Also ListedRegistered NurseTaxonomy 163W00000X · License 526872 (NY)

348 13TH ST, Brooklyn, NY 11215

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Other Names 1

Former Name (1)Lillian Oconnor Np, Rn

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

Lillian Mcnamara Np, Rn 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 ID7315387453

PECOS Enrollment IDI20240506004320

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

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

Park Slope Center For Mental Health, Inc

Same address

Mental Health (Including Community Mental Health Center)

348 13TH ST, SUITE 203
Brooklyn, NY 11215

Reassigned Medicare billing, New York enrollment
30 clinicians in this Medicare group

NPI 1851382188 (718) 788-2461

Peaceful Progress Incorporated

8.9 mi

Psychiatric/Mental Health

279 PRESCOTT AVE
Staten Island, NY 10306

Reassigned Medicare billing, New York enrollment

NPI 1205769486 (917) 496-6547

Michael Hargrove MD PLLC

47 mi

Psychiatry

3505 HILL BLVD STE K
Yorktown Heights, NY 10598

Reassigned Medicare billing, New York enrollment
10 clinicians in this Medicare group

NPI 1720578255 (914) 352-6116

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

314 services85 patients

Psychotherapy with evaluation and management visit, 30 minutes 90833

Psychotherapy with evaluation and management is a 30-minute session where a mental health professional talks with you about your concerns and feelings. They assess your mental health, provide support, and manage your treatment plan to help improve your well-being.

296 services80 patients

Psychiatric diagnostic evaluation with medical services 90792

A psychiatric diagnostic evaluation with medical services is a comprehensive assessment. It includes a detailed examination of your mental health and physical wellbeing, as well as your personal and family history. This evaluation aids in creating an effective treatment plan.

114 services111 patients

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.

45 services23 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11215 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

$105.06 typical visit price

range $67.40 – $203.53

Typical copayment $26.26 (range $16.85 – $50.88)

Most-billed visit code 99203

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 20

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

DR. JONATHAN LAYTON M.D.

Family Medicine (Adult Medicine)

348 13TH ST, SUITE 201
BROOKLYN, NY 11215

Kings County (718) 636-2900

PAULA CARINO

Counselor (Mental Health)

348 13TH ST, SUITE 503
BROOKLYN, NY 11215

Kings County (718) 788-5101

RAMONA CUMMINGS

Social Worker

348 13TH ST
BROOKLYN, NY 11215

Kings County (718) 788-2461

MS. MARIA PARI-KEENER MS RD CDN

Dietitian, Registered

348 13TH ST, SUITE 201
BROOKLYN, NY 11215

Kings County (718) 832-7182

MS. TRACEY ALLEN

Counselor (Mental Health)

348 13TH ST
BROOKLYN, NY 11215

Kings County (718) 788-2461

MARIA RIVERA

Counselor (Mental Health)

348 13TH ST, 203
BROOKLYN, NY 11215

Kings County (718) 788-2461

LAURA POZVOLSKA MFT

Marriage & Family Therapist

348 13TH ST, SUITE 203
BROOKLYN, NY 11215

Kings County (718) 788-2461

MS. RACHEL GOLDSTEIN

Social Worker

348 13TH ST
BROOKLYN, NY 11215

Kings County (718) 788-2461

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 Lillian Mcnamara's NPI number?

The NPI number for Lillian Mcnamara is 1205519485. It was assigned to this individual provider in the NPPES registry on August 14, 2023. The provider is also known as Lillian Oconnor Np, Rn.

Where is Lillian Mcnamara located?

Lillian Mcnamara practices at 348 13th St, Brooklyn, NY 11215. The listed phone number is (917) 496-6547.

What is Lillian Mcnamara's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Lillian Mcnamara enrolled in Medicare?

Yes. Lillian Mcnamara 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 Lillian Mcnamara's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lillian Mcnamara reassigns Medicare benefits to 3 organizations: Park Slope Center For Mental Health, Inc (Brooklyn, NY), Peaceful Progress Incorporated (Staten Island, NY) and Michael Hargrove MD PLLC (Yorktown Heights, 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 Lillian Mcnamara's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Lillian Mcnamara was last updated on September 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 days 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.