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MARIA JULIA NAHMIAS M.D.
NPI 1639571805
Psychiatry & Neurology - Psychiatry in Valhalla, NY

Active since September 19, 2014PECOS Enrolled
100 WOODS RD, VALHALLA, NY 10595(914) 493-1939 Get Directions Write a Review

NPPES record last updated: April 1, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Maria Julia Nahmias M.d. NPPES

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

MARIA JULIA NAHMIAS M.D. (NPI 1639571805) is an individual psychiatry provider in Valhalla, New York, licensed in New York (291535) and active in the NPI registry since September 2014. She is enrolled in Medicare PECOS, is affiliated with Montefiore Medical Center, and is a graduate of Other (2011).

NPPES Registry Identity

NPI1639571805
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameMARIA JULIA NAHMIASCredential: M.D.
Location Address100 WOODS RDValhalla, NY 10595-1530
Mailing Address100 Woods RdValhalla, NY 10595-1530 · (914) 493-1939
Phone(914) 493-1939
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateSeptember 19, 2014
Last NPPES UpdateApril 1, 2021
NPPES CertifiedApril 1, 2021
✔ NPI 1639571805 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 NY · 291535
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.
100 WOODS RD, Valhalla, NY 10595
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Maria Julia Nahmias M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID749539245
PECOS Enrollment IDI20180816001013
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

2

Medicare enrollment records show Maria Nahmias reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Montefiore Medical Center
15 mi
Anesthesiology
111 E 210TH ST
Bronx, NY 10467
  • Reassigned Medicare billing, New York enrollment
  • 5,251 clinicians in this Medicare group
NPI 1063525152 (914) 378-6021
Downtown Bronx Medical Associates PC
20 mi
Emergency Medical Services
234 E 149TH ST, STE 8D200
Bronx, NY 10451
  • Reassigned Medicare billing, New York enrollment
  • 971 clinicians in this Medicare group
NPI 1689618407 (718) 576-6200

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 3

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.

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.
47 services18 patients
Telephone medical discussion with physician, 21-30 minutes 99443
This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.
35 services16 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.
21 services12 patients

Hospital Affiliations CMS Care Compare

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

Montefiore Medical Center

Acute Care Hospitals · Bronx, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330059
Location111 East 210th StreetBronx, NY 10467 · Bronx County
Emergency services Birthing friendly

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
$203.53 typical visit price
range $67.40 – $203.53
Typical copayment $50.88 (range $16.85 – $50.88)
Most-billed visit code 99205
Established Patient
$83.44 typical visit price
range $21.66 – $164.45
Typical copayment $20.86 (range $5.41 – $41.11)
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.

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 Maria Nahmias's NPI number?

The NPI number for Maria Nahmias is 1639571805. It was assigned to this individual provider in the NPPES registry on September 19, 2014.

Where is Maria Nahmias located?

Maria Nahmias practices at 100 Woods Rd, Valhalla, NY 10595. The listed phone number is (914) 493-1939.

What is Maria Nahmias's specialty?

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

Is Maria Nahmias enrolled in Medicare?

Yes. Maria Nahmias is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Maria Nahmias's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maria Nahmias reassigns Medicare benefits to 2 organizations: Montefiore Medical Center (Bronx, NY) and Downtown Bronx Medical Associates PC (Bronx, 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 Maria Nahmias's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Maria Nahmias affiliated with any hospitals?

According to CMS data, Maria Nahmias is affiliated with Montefiore Medical Center.

When was this NPI record last updated?

The NPPES record for Maria Nahmias was last updated on April 1, 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.