SULLIVAN MD PLLC
NPI 1851531933
Clinic/Center - Mental Health (Including Community Mental Health Center) in Sierra Vista, AZ

Q: What is Sullivan MD PLLC's NPI number?

The NPI number for Sullivan MD PLLC is 1851531933. It was assigned to this organization in the NPPES registry on March 2, 2009.

Q: What is Sullivan MD PLLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Mental Health (Including Community Mental Health Center), with taxonomy code 261QM0801X.

Q: When was this NPI record last updated?

The NPPES record for Sullivan MD PLLC was last updated on March 25, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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 March 02, 2009

5100 E HWY 90, SUITE B, SIERRA VISTA, AZ 85635(520) 417-9727(520) 417-9733 Get Directions Write a Review

NPPES record last updated: March 25, 2009. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Sullivan Md Pllc NPPES

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

SULLIVAN MD PLLC (NPI 1851531933) is a healthcare organization registered as a mental health (including community mental health center) in Sierra Vista, Arizona and active in the NPI registry since March 2009. The organization lists William Robert Sullivan, President, as its authorized official.

NPPES Registry Identity

NPI1851531933

Entity TypeOrganization

Primary Taxonomy261QM0801X

Legal Business NameSULLIVAN MD PLLC

Location Address5100 E HWY 90, SUITE BSierra Vista, AZ 85635-2443

Mailing Address5100 E. Hwy. 90, Suite BSierra Vista, AZ 85635 · (520) 417-9727 · Fax (520) 417-9733

Phone(520) 417-9727

Fax(520) 417-9733

Organization SubpartNo

Authorized OfficialWilliam Robert SullivanPresident · (520) 417-9729

Enumeration DateMarch 2, 2009

Last NPPES UpdateMarch 25, 2009

✔ NPI 1851531933 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Mental Health (Including Community Mental Health Center)Ambulatory Health Care Facilities

Taxonomy Code261QM0801X

License✔ Licensed in AZ · 22176

5100 E HWY 90, Sierra Vista, AZ 85635

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sullivan Md Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Sullivan MD PLLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

William Sullivan, MD

Psychiatry

NPI 1154483477

5100 E HIGHWAY 90 SUITE B
Sierra Vista, AZ 85635

(520) 417-9729

✔ PECOS✔ Accepts MedicareSame address

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 Sullivan MD PLLC's NPI number?

The NPI number for Sullivan MD PLLC is 1851531933. It was assigned to this organization in the NPPES registry on March 2, 2009.

Where is Sullivan MD PLLC located?

Sullivan MD PLLC is located at 5100 E Hwy 90 Suite B, Sierra Vista, AZ 85635. The listed phone number is (520) 417-9727.

What is Sullivan MD PLLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Mental Health (Including Community Mental Health Center), with taxonomy code 261QM0801X.

Is Sullivan MD PLLC enrolled in Medicare?

Yes. Sullivan MD PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Sullivan MD PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Psychiatry) reassigns their Medicare billing to Sullivan MD PLLC. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Sullivan MD PLLC accept?

Health plans from Ambetter Health and Ambetter from Arizona Complete Health list Sullivan MD PLLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Sullivan MD PLLC was last updated on March 25, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.