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WILLIAM SULLIVAN MD
NPI 1154483477
Psychiatry & Neurology - Psychiatry in Sierra Vista, AZ

Active since December 14, 2006PECOS EnrolledAccepts Medicare Assignment
78.85/100
CMS Quality Rating
5100 E HIGHWAY 90, SUITE B, SIERRA VISTA, AZ 85635(520) 417-9729(520) 417-9733 Get Directions Write a Review

NPPES record last updated: June 6, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About William Sullivan Md NPPES

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

WILLIAM SULLIVAN MD (NPI 1154483477) is an individual psychiatry provider in Sierra Vista, Arizona, licensed in Arizona (MD 22176) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS and is a graduate of Texas Tech University Health Science Center School Of Medicine (1992).

NPPES Registry Identity

NPI1154483477
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameWILLIAM SULLIVANCredential: MD
Location Address5100 E HIGHWAY 90, SUITE BSierra Vista, AZ 85635-2443
Mailing Address5100 E Highway 90, Suite BSierra Vista, AZ 85635-2443 · (520) 417-9729 · Fax (520) 417-9733
Phone(520) 417-9729
Fax(520) 417-9733
Sole ProprietorYes
Medical School CMSTexas Tech University Health Science Center School Of MedicineGraduated 1992
Enumeration DateDecember 14, 2006
Last NPPES UpdateJune 6, 2023
NPPES CertifiedJune 6, 2023
✔ NPI 1154483477 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 AZ · MD 22176
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.
5100 E HIGHWAY 90, Sierra Vista, AZ 85635
Open in Google Maps ↗

Other Identifiers 1

Other192774AZ · Ahcccs

Accepted Insurance

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

William Sullivan Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4183605884
PECOS Enrollment IDI20040527001276, I20170807001456, I20240115001147
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

3

Medicare enrollment records show William Sullivan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Sullivan MD PLLC
Same address
Mental Health (Including Community Mental Health Center)
5100 E HWY 90, SUITE B
Sierra Vista, AZ 85635
  • Reassigned Medicare billing, Arizona enrollment
NPI 1851531933 (520) 417-9727
San Carlos Apache Healthcare Corporation
109 mi
Clinic/Center
9A CLARENCE WESLEY HEALTH CENTER LOOP
Bylas, AZ 85530
  • Reassigned Medicare billing, Texas enrollment
  • 438 clinicians in this Medicare group
NPI 1417330713 (928) 475-2686
St Luke's Clinic LLC
796 mi
Family Medicine
775 POLE LINE RD W
Twin Falls, ID 83301
  • Reassigned Medicare billing, Idaho enrollment
  • Medicare enrollment name: St Lukes Clinic LLC
  • 322 clinicians in this Medicare group
NPI 1790718229 (208) 814-1000

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 2

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
265 services88 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.
88 services35 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85635 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
$168.60 typical visit price
range $55.44 – $168.60
Typical copayment $42.15 (range $13.86 – $42.15)
Most-billed visit code 99205
Established Patient
$69.24 typical visit price
range $17.72 – $137.41
Typical copayment $17.31 (range $4.43 – $34.35)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

78.85/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality81.58
Promoting Interoperability100
Improvement Activities40
Cost47.94

Other Providers at the Same Location NPPES 3

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

MS. MARIA AUDREY ERSPAMER APRN, PMHNP-BC
Nurse Practitioner (Psychiatric/Mental Health)
5100 E HIGHWAY 90
SIERRA VISTA, AZ 85635
Cochise County (520) 678-6019
MR. JEFFREY TRUJILLO L.P.C.
Counselor (Professional)
5100 E HIGHWAY 90, SUITE B
SIERRA VISTA, AZ 85635
Cochise County (520) 559-0511
RONALD JOHN VETO D.M.D.
Dentist (General Practice)
5100 E HIGHWAY 90, SUITE A
SIERRA VISTA, AZ 85635
Cochise County (520) 458-4334

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 William Sullivan's NPI number?

The NPI number for William Sullivan is 1154483477. It was assigned to this individual provider in the NPPES registry on December 14, 2006.

Where is William Sullivan located?

William Sullivan practices at 5100 E Highway 90 Suite B, Sierra Vista, AZ 85635. The listed phone number is (520) 417-9729.

What is William Sullivan's specialty?

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

Is William Sullivan enrolled in Medicare?

Yes. William Sullivan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for William Sullivan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Sullivan reassigns Medicare benefits to 3 organizations: Sullivan MD PLLC (Sierra Vista, AZ), San Carlos Apache Healthcare Corporation (Bylas, AZ) and St Luke's Clinic LLC (Twin Falls, ID). 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 William Sullivan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Sullivan accept?

Health plans from Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona and PacificSource Health Plans list William Sullivan 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 William Sullivan was last updated on June 6, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.