DR. SONIA MIA DIAZ MD
NPI 1780325233
Psychiatry & Neurology - Psychiatry in Richmond, VA

Active since April 06, 2022PECOS Enrolled
8401 MAYLAND DR STE A, RICHMOND, VA 23294(434) 623-0003(434) 623-0003 Get Directions Write a Review

NPPES record last updated: June 7, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 7, 2026, Mar 15, 2026, Jan 27, 2026 and 1 more (4 updates tracked since 2022).

About Dr. Sonia Mia Diaz Md NPPES

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

DR. SONIA MIA DIAZ MD (NPI 1780325233) is an individual psychiatry provider in Richmond, Virginia, licensed in Virginia (0101288149) and active in the NPI registry since April 2022. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1780325233
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameDR. SONIA MIA DIAZCredential: MD
Location Address8401 MAYLAND DR STE ARichmond, VA 23294-4648
Mailing Address8401 Mayland Dr Ste ARichmond, VA 23294-4648 · (434) 623-0003
Fax(434) 623-0003
Sole ProprietorNo
Enumeration DateApril 6, 2022
Last NPPES UpdateJune 7, 20264 updates tracked since enumeration
NPPES CertifiedJune 7, 2026
NPI 1780325233 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License Licensed in VA · 0101288149
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 ListedGeneral PracticeTaxonomy 208D00000X · License 0101288149 (VA)
8401 MAYLAND DR STE A, Richmond, VA 23294

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Dr. Sonia Mia Diaz Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 23294 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
$170.30 typical visit price
range $56.19 – $170.30
Typical copayment $42.57 (range $14.04 – $42.57)
Most-billed visit code 99205
Established Patient
$70.08 typical visit price
range $18.07 – $138.91
Typical copayment $17.52 (range $4.51 – $34.72)
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.

Clinic/Center (Radiology)
8401 MAYLAND DR STE A
RICHMOND, VA 23294
Nurse Practitioner (Psychiatric/Mental Health)
8401 MAYLAND DR STE A
RICHMOND, VA 23294
Durable Medical Equipment & Medical Supplies
8401 MAYLAND DR STE A
RICHMOND, VA 23294
Nurse Practitioner
8401 MAYLAND DR STE A
RICHMOND, VA 23294
Social Worker (Clinical)
8401 MAYLAND DR STE A
RICHMOND, VA 23294
Community/Behavioral Health
8401 MAYLAND DR STE A
RICHMOND, VA 23294
Counselor (Mental Health)
8401 MAYLAND DR STE A
RICHMOND, VA 23294
Doula
8401 MAYLAND DR STE A
RICHMOND, VA 23294

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 Sonia Diaz's NPI number?

The NPI number for Sonia Diaz is 1780325233. It was assigned to this individual provider in the NPPES registry on April 6, 2022.

Where is Sonia Diaz located?

Sonia Diaz practices at 8401 Mayland Dr Ste A, Richmond, VA 23294. The listed phone number is (434) 623-0003.

What is Sonia Diaz's specialty?

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

Is Sonia Diaz enrolled in Medicare?

Yes. Sonia Diaz is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Sonia Diaz was last updated on June 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 59 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.