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

MR. ADAM GORDON O'BRIEN APRN, RN, PMHNP-BC
NPI 1801592951
Nurse Practitioner - Psychiatric/Mental Health in Valhalla, NY

Active since January 31, 2023PECOS EnrolledAccepts Medicare Assignment
100 WOODS RD, VALHALLA, NY 10595(914) 493-7182(914) 493-7152 Get Directions Write a Review

NPPES record last updated: August 7, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 7, 2026, Apr 8, 2025, Sep 10, 2023 and 4 more (7 updates tracked since 2023).

About Mr. Adam Gordon O'brien Aprn, Rn, Pmhnp-bc NPPES

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

MR. ADAM GORDON O'BRIEN APRN, RN, PMHNP-BC (NPI 1801592951) is an individual psychiatric/mental health provider in Valhalla, New York, licensed in New York (404805) and active in the NPI registry since January 2023. He is enrolled in Medicare PECOS and is a graduate of Other (2022).

NPPES Registry Identity

NPI1801592951
Entity TypeIndividualMale
Primary Taxonomy363LP0808X
Provider Legal NameMR. ADAM GORDON O'BRIENCredential: APRN, RN, PMHNP-BC
Location Address100 WOODS RDValhalla, NY 10595-1530
Mailing AddressPo Box 8512Woodcliff Lake, NJ 07677-8512 · (551) 252-2457
Phone(914) 493-7182
Fax(914) 493-7152
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateJanuary 31, 2023
Last NPPES UpdateAugust 7, 20267 updates tracked since enumeration
NPPES CertifiedAugust 7, 2026
✔ NPI 1801592951 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
Licenses✔ Licensed in NY · 404805✔ Licensed in NH · 09190023✔ Licensed in CT · 011631✔ Licensed in NJ · 26NJ01472800
Also ListedRegistered NurseTaxonomy 163W00000X · License 10.180247 (CT), 668512 (NY), 26NR15624200 (NJ)
100 WOODS RD, Valhalla, NY 10595
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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

Mr. Adam Gordon O'brien Aprn, Rn, Pmhnp-bc 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 ID4587027305
PECOS Enrollment IDI20230828000968
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10595 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.

MRS. LISA ANN SAUER N.P.
Nurse Practitioner (Neonatal, Critical Care)
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-7000
KAREN FRANCOIS MD
Anesthesiology
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-7000
KIMBERLY WILSON R.D.
Dietitian, Registered
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-7664
RADHIKA VOLETI M.D
Internal Medicine
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-7000
FAREENA NAWAZ MD
Internal Medicine
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-7000
AUSTIN B CARPENTER
Student in an Organized Health Care Education/Training Program
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-8795
AMRO AGLAN MD
Student in an Organized Health Care Education/Training Program
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-7000
HAO WANG MD, PHD
Student in an Organized Health Care Education/Training Program
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-6613

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 Adam O'brien's NPI number?

The NPI number for Adam O'brien is 1801592951. It was assigned to this individual provider in the NPPES registry on January 31, 2023.

Where is Adam O'brien located?

Adam O'brien practices at 100 Woods Rd, Valhalla, NY 10595. The listed phone number is (914) 493-7182.

What is Adam O'brien's specialty?

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

Is Adam O'brien enrolled in Medicare?

Yes. Adam O'brien 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 Adam O'brien was last updated on August 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.