DR. RUTH BAUTISTA DIAZ M.D.
NPI 1801941281
Psychiatry & Neurology - Psychiatry in Ypsilanti, MI

Q: What is Ruth Diaz's NPI number?

The NPI number for Ruth Diaz is 1801941281. It was assigned to this individual provider in the NPPES registry on January 24, 2007. The provider is also known as Ruth B. Diaz MD.

Q: What is Ruth Diaz's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Ruth Diaz was last updated on September 9, 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.

Active since January 24, 2007PECOS Enrolled

4870 W CLARK RD, SUITE 107, YPSILANTI, MI 48197(734) 434-7260(734) 434-7607 Get Directions Write a Review

NPPES record last updated: September 9, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Dr. Ruth Bautista Diaz M.d. NPPES

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

DR. RUTH BAUTISTA DIAZ M.D. (NPI 1801941281) is an individual psychiatry provider in Ypsilanti, Michigan, licensed in Michigan (4301035476) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1801941281

Entity TypeIndividualFemale

Primary Taxonomy2084P0800X

Provider Legal NameDR. RUTH BAUTISTA DIAZCredential: M.D.

Location Address4870 W CLARK RD, SUITE 107Ypsilanti, MI 48197-1104

Mailing Address45 E Lewis AveMilan, MI 48160-1119 · (734) 439-2303 · Fax (734) 439-0016

Phone(734) 434-7260

Fax(734) 434-7607

Sole ProprietorYes

Enumeration DateJanuary 24, 2007

Last NPPES UpdateSeptember 9, 2021

NPPES CertifiedSeptember 9, 2021

✔ NPI 1801941281 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 MI · 4301035476

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.

4870 W CLARK RD, Ypsilanti, MI 48197

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Other Names 1

Other Name (5)Ruth B. Diaz Md

Other Identifiers 1

Other260817222MA · Bcbsm

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. Ruth Bautista Diaz M.d. 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 48197 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

$177.36 typical visit price

range $58.04 – $177.36

Typical copayment $44.34 (range $14.51 – $44.34)

Most-billed visit code 99205

Established Patient

$72.38 typical visit price

range $18.32 – $143.49

Typical copayment $18.09 (range $4.58 – $35.87)

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 13

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

JAY AMBEY LLC

Pharmacy (Community/Retail Pharmacy)

4870 W CLARK RD, SUITE#108
YPSILANTI, MI 48197

Washtenaw County (734) 528-9144

BEN GOLD, MD, PC

Allergy & Immunology (Allergy)

4870 W CLARK RD, SUITE 203
YPSILANTI, MI 48197

Washtenaw County (737) 434-6050

ADVANCED ASTHMA ALLERGY & IMMUNOLOGY CARE PC

Allergy & Immunology (Allergy)

4870 W CLARK RD, SUITE 202
YPSILANTI, MI 48197

Washtenaw County (734) 434-5430

MIDWEST TRAVELERS HEALTH SERVICE

Internal Medicine (Infectious Disease)

4870 W CLARK RD, SUITE 204
YPSILANTI, MI 48197

Washtenaw County (734) 528-9080

MICHIGAN HOSPICE,INC.

Hospice Care, Community Based

4870 W CLARK RD, SUITE 100B
YPSILANTI, MI 48197

Washtenaw County (734) 677-0077

ASYA LASHAI HARRIS

Behavior Technician

4870 W CLARK RD
YPSILANTI, MI 48197

Washtenaw County (734) 361-2504

KRISTYANA HUDSON

Behavior Technician

4870 W CLARK RD
YPSILANTI, MI 48197

Washtenaw County (734) 361-2504

PAIN RECOVERY SOLUTIONS, P.C.

Pain Medicine (Pain Medicine)

4870 W CLARK RD, SUITE 201
YPSILANTI, MI 48197

Washtenaw County (734) 434-6600

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 Ruth Diaz's NPI number?

The NPI number for Ruth Diaz is 1801941281. It was assigned to this individual provider in the NPPES registry on January 24, 2007. The provider is also known as Ruth B. Diaz MD.

Where is Ruth Diaz located?

Ruth Diaz practices at 4870 W Clark Rd Suite 107, Ypsilanti, MI 48197. The listed phone number is (734) 434-7260.

What is Ruth Diaz's specialty?

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

Is Ruth Diaz enrolled in Medicare?

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

When was this NPI record last updated?

The NPPES record for Ruth Diaz was last updated on September 9, 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.