TIMOTHY AMIN RAISSIAN M.D.
NPI 1225349715
Emergency Medicine in Scottsdale, AZ
About Timothy Amin Raissian M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TIMOTHY AMIN RAISSIAN M.D. (NPI 1225349715) is an individual emergency medicine provider in Scottsdale, Arizona, licensed in Arizona (46595) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS and is a graduate of Meharry Medical College School Of Medicine (2010).
NPPES Registry Identity
Specialties & Licenses 2
Accepted 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
Timothy Amin Raissian M.d. 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.
Medicare Billing Reassignments
11Medicare enrollment records show Timothy Raissian reassigns Medicare billing to 11 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Scottsdale, AZ 85255
- Reassigned Medicare billing, Arizona enrollment
- 134 clinicians in this Medicare group
Phoenix, AZ 85027
- Reassigned Medicare billing, Arizona enrollment
- 122 clinicians in this Medicare group
Phoenix, AZ 85020
- Reassigned Medicare billing, Arizona enrollment
- 153 clinicians in this Medicare group
Scottsdale, AZ 85256
- Reassigned Medicare billing, Texas enrollment
- 599 clinicians in this Medicare group
Phoenix, AZ 85015
- Reassigned Medicare billing, Arizona enrollment
- 260 clinicians in this Medicare group
Gilbert, AZ 85296
- Reassigned Medicare billing, Arizona enrollment
- 263 clinicians in this Medicare group
Chandler, AZ 85224
- Reassigned Medicare billing, Arizona enrollment
- 101 clinicians in this Medicare group
Mesa, AZ 85209
- Reassigned Medicare billing, Arizona enrollment
- 79 clinicians in this Medicare group
Flagstaff, AZ 86001
- Reassigned Medicare billing, Arizona enrollment
- 552 clinicians in this Medicare group
Yuma, AZ 85364
- Reassigned Medicare billing, Arizona enrollment
- 141 clinicians in this Medicare group
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 3
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 85255 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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.
SCOTTSDALE, AZ 85255
SCOTTSDALE, AZ 85255
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 Timothy Raissian's NPI number?
The NPI number for Timothy Raissian is 1225349715. It was assigned to this individual provider in the NPPES registry on June 29, 2010.
Where is Timothy Raissian located?
Timothy Raissian practices at 7400 E Thompson Peak Pkwy, Scottsdale, AZ 85255. The listed phone number is (480) 587-5493.
What is Timothy Raissian's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Timothy Raissian enrolled in Medicare?
Yes. Timothy Raissian 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 Timothy Raissian's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Raissian reassigns Medicare benefits to 11 organizations: Honorhealth Urgent Care, LLC (Scottsdale, AZ), Loop 101 Emergency Physicians LLC (Phoenix, AZ), Emcare - Pnx Emergency Physicians LLC (Phoenix, AZ), Dhew Ind Hlth Sv Hlth Svs & Mntl Hlth Adm. (Scottsdale, AZ), Emergency Group Of Arizona Professional Corporation (Phoenix, AZ) and 6 more organizations, listed in the Medicare section above. 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 Timothy Raissian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Timothy Raissian accept?
Health plans from Blue Cross Blue Shield of Arizona, Cigna HealthCare of Arizona, Inc and Oscar Health Plan, Inc. list Timothy Raissian 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 Timothy Raissian was last updated on April 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.
# Timothy Amin Raissian, M.D. · NPI 1225349715
Emergency Medicine physician in Scottsdale, Arizona. Individual provider, active in the CMS NPPES registry since June 29, 2010.
## Identity
- **NPI:** 1225349715 (Entity type: Individual)
- **Enumerated:** June 29, 2010
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 46595 (Arizona)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 7400 E THOMPSON PEAK PKWY, Scottsdale, AZ 85255-4109
- **Phone:** (480) 587-5493
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 11 organizations under Medicare reassignment (form CMS-855R): Honorhealth Urgent Care, LLC (NPI 1700423415, Scottsdale, AZ); Loop 101 Emergency Physicians LLC (NPI 1376573378, Phoenix, AZ); Emcare - Pnx Emergency Physicians LLC (NPI 1902855992, Phoenix, AZ); Dhew Ind Hlth Sv Hlth Svs & Mntl Hlth Adm. (NPI 1093739740, Scottsdale, AZ); Emergency Group Of Arizona Professional Corporation (NPI 1215275433, Phoenix, AZ); and 6 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Meharry Medical College School Of Medicine, class of 2010
## Record status
- **NPPES last updated:** April 22, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1225349715) · Data from the CMS NPPES public registry.