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MENTAL HEALTH SERVICES LLC
NPI 1134483910
Psychiatry & Neurology - Psychiatry in Arnold, MD

Active since June 27, 2012
273 PENINSULA FARM RD STE F, ARNOLD, MD 21012(410) 980-2089(443) 346-0067 Get Directions Write a Review

NPPES record last updated: April 22, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 22, 2020, Apr 16, 2019, Dec 15, 2017 (3 updates tracked since 2017).

About Mental Health Services Llc NPPES

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

MENTAL HEALTH SERVICES LLC (NPI 1134483910), doing business as R H Niazi Md Llc, is a healthcare organization registered as a psychiatry in Arnold, Maryland and active in the NPI registry since June 2012. The organization lists Robina H Niazi, Owner, as its authorized official.

NPPES Registry Identity

NPI1134483910
Entity TypeOrganization
Primary Taxonomy2084P0800X
Legal Business NameMENTAL HEALTH SERVICES LLC
Location Address273 PENINSULA FARM RD STE FArnold, MD 21012-1012
Mailing Address2624 Dapple Grey CtOlney, MD 20832-2714 · (410) 980-2089 · Fax (443) 346-0067
Phone(410) 980-2089
Fax(443) 346-0067
Organization SubpartNo
Authorized OfficialRobina H NiaziOwner · (410) 980-2089
Enumeration DateJune 27, 2012
Last NPPES UpdateApril 22, 20203 updates tracked since enumeration
NPPES CertifiedApril 22, 2020
✔ NPI 1134483910 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
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.
Also ListedCounselorTaxonomy 101Y00000X
Also ListedPsychologistTaxonomy 103T00000X
273 PENINSULA FARM RD STE F, Arnold, MD 21012
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Other Names 1

Former Legal Business NameR H Niazi Md Llc

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mental Health Services Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

4

Medicare enrollment records show 4 clinicians reassign Medicare billing to Mental Health Services LLC, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (4)

Robina Niazi, MD
Psychiatry
NPI 1598981870
273 PENINSULA FARM RD STE F
Arnold, MD 21012
(410) 980-2089
✔ PECOS✔ Accepts MedicareSame address
John Bryan Annang, CRNP
Nurse Practitioner
NPI 1003623927
273 PENINSULA FARM RD STE F
Arnold, MD 21012
(443) 827-7113
✔ PECOS✔ Accepts MedicareSame address
Aneela Kazi, M.D.
Psychiatry
NPI 1720241011
801 PENNSYLVANIA AVE SE
Washington, DC 20003
(202) 683-1076
✔ PECOS✔ Accepts Medicare28 mi
Lutanya Wilson, LICSW, LCSW-C, LCSW
Clinical Social Worker
NPI 1043753965
6216 OLD FRANCONIA RD STE B
Alexandria, VA 22310
(443) 758-0333
✔ PECOS✔ Accepts Medicare39 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Mental Health Services LLC's NPI number?

The NPI number for Mental Health Services LLC is 1134483910. It was assigned to this organization in the NPPES registry on June 27, 2012. The provider was formerly known as R H Niazi MD LLC.

Where is Mental Health Services LLC located?

Mental Health Services LLC is located at 273 Peninsula Farm Rd Ste F, Arnold, MD 21012. The listed phone number is (410) 980-2089.

What is Mental Health Services LLC's specialty?

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

Is Mental Health Services LLC enrolled in Medicare?

Yes. Mental Health Services LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Mental Health Services LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians reassign their Medicare billing to Mental Health Services LLC, in Clinical Social Worker, Nurse Practitioner and Psychiatry. A 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 the clinician's services. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Mental Health Services LLC was last updated on April 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.