TIFFANY SIMPSON-VASSALL NP
NPI 1700846599
Nurse Practitioner - Obstetrics & Gynecology in Laveen, AZ

Q: What is Tiffany Simpson-vassall's NPI number?

The NPI number for Tiffany Simpson-vassall is 1700846599. It was assigned to this individual provider in the NPPES registry on March 24, 2006. The provider is also known as Tiffany Simpson.

Q: What is Tiffany Simpson-vassall's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Obstetrics & Gynecology, with taxonomy code 363LX0001X.

Active since March 24, 2006PECOS EnrolledAccepts Medicare Assignment

17487 S HEALTHCARE DR, LAVEEN, AZ 85339(520) 550-6000(520) 550-6027 Get Directions Write a Review

NPPES record last updated: November 24, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 24, 2025, Mar 23, 2016 (2 updates tracked since 2016).

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About Tiffany Simpson-vassall Np NPPES

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

TIFFANY SIMPSON-VASSALL NP (NPI 1700846599) is an individual obstetrics & gynecology provider in Laveen, Arizona, licensed in Arizona (AP1935) and active in the NPI registry since March 2006. She is enrolled in Medicare PECOS and is a graduate of Other (2004).

NPPES Registry Identity

NPI1700846599

Entity TypeIndividualFemale

Primary Taxonomy363LX0001X

Provider Legal NameTIFFANY SIMPSON-VASSALLCredential: NP

Location Address17487 S HEALTHCARE DRLaveen, AZ 85339-8500

Mailing AddressPo Box 115Sacaton, AZ 85147-0002 · (520) 796-2600 · Fax (602) 528-1296

Phone(520) 550-6000

Fax(520) 550-6027

Sole ProprietorNo

Medical School CMSOtherGraduated 2004

Enumeration DateMarch 24, 2006

Last NPPES UpdateNovember 24, 20252 updates tracked since enumeration

NPPES CertifiedNovember 24, 2025

✔ NPI 1700846599 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Obstetrics & GynecologyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LX0001X

License✔ Licensed in AZ · AP1935

Also ListedRegistered NurseTaxonomy 163W00000X · License RN109710 (AZ)

17487 S HEALTHCARE DR, Laveen, AZ 85339

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Other Names 1

Former Name (1)Tiffany Simpson

Other Identifiers 1

Medicaid863648AZ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cigna HealthCare of Arizona, Inc, Imperial Insurance Companies, Inc., UnitedHealthcare.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

Tiffany Simpson-vassall Np 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 ID6103857198

PECOS Enrollment IDI20251205004100

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 Reassignment

Medicare enrollment records show Tiffany Simpson-vassall reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Gila River Health Care Corporation

Same address

Critical Access

17487 S. HEALTH CARE DR.
Laveen, AZ 85339

Reassigned Medicare billing, Texas enrollment
482 clinicians in this Medicare group

NPI 1376538231 (520) 550-6000

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85339 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

$85.89 typical visit price

range $55.44 – $168.60

Typical copayment $21.47 (range $13.86 – $42.15)

Most-billed visit code 99203

Established Patient

$98.00 typical visit price

range $17.72 – $137.41

Typical copayment $24.50 (range $4.43 – $34.35)

Most-billed visit code 99214

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 14

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

MS. ERIKA M CAINE PHARM.D.

Pharmacist