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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

TAMMY L LARSON-CAIN NP-C
NPI 1023394491
Nurse Practitioner in Scottsdale, AZ

Active since October 28, 2011PECOS EnrolledAccepts Medicare Assignment
78.58/100
CMS Quality Rating
8405 N PIMA CENTER PKWY STE 201, SCOTTSDALE, AZ 85258(480) 587-6775 Get Directions Write a Review

NPPES record last updated: September 4, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 4, 2026, Sep 8, 2020, Mar 18, 2019 (3 updates tracked since 2019).

About Tammy L Larson-cain Np-c NPPES

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

TAMMY L LARSON-CAIN NP-C (NPI 1023394491) is an individual nurse practitioner in Scottsdale, Arizona, licensed in Arizona (AP4260) and active in the NPI registry since October 2011. She is enrolled in Medicare PECOS and is a graduate of Other (2011).

NPPES Registry Identity

NPI1023394491
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameTAMMY L LARSON-CAINCredential: NP-C
Location Address8405 N PIMA CENTER PKWY STE 201Scottsdale, AZ 85258-4670
Mailing Address8405 N Pima Center Pkwy Ste 201Scottsdale, AZ 85258-4670 · (480) 587-6775
Phone(480) 587-6775
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateOctober 28, 2011
Last NPPES UpdateSeptember 4, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 4, 2026
✔ NPI 1023394491 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in AZ · AP4260
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License AP4260 (AZ)
8405 N PIMA CENTER PKWY STE 201, Scottsdale, AZ 85258
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Sanford Health Plan.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

Tammy L Larson-cain Np-c 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 ID8729245519
PECOS Enrollment IDI20120207000093
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 Tammy Larson-cain reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mayo Clinic Arizona
5.4 mi
Multi-Specialty
13400 E SHEA BLVD
Scottsdale, AZ 85259
  • Reassigned Medicare billing, Arizona enrollment
  • 1,792 clinicians in this Medicare group
NPI 1558332494 (480) 301-8000

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 5

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 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.
356 services208 patients
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.
141 services110 patients
Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301
Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.
140 services24 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
135 services108 patients
Aspiration and/or injection of fluid large joint using ultrasound guidance 20611
This procedure involves using ultrasound technology to accurately locate a large joint, usually the knee or shoulder. A needle is then inserted to either extract fluid (aspiration) or inject medication. The ultrasound helps ensure precision and safety.
34 services28 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85258 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.

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.

78.58/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality69.05
Promoting Interoperability100
Improvement Activities40
Cost59.56

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.

MANMEET KAUR
Internal Medicine (Rheumatology)
8405 N PIMA CENTER PKWY STE 201
SCOTTSDALE, AZ 85258
Maricopa County (916) 734-2737
DR. RAMIN SABAHI M.D.
Internal Medicine (Rheumatology)
8405 N PIMA CENTER PKWY STE 201
SCOTTSDALE, AZ 85258
Maricopa County (480) 587-6775
DR. NANCY D SEIN DO
Internal Medicine (Rheumatology)
8405 N PIMA CENTER PKWY STE 201
SCOTTSDALE, AZ 85258
Maricopa County (480) 587-6775

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 Tammy Larson-cain's NPI number?

The NPI number for Tammy Larson-cain is 1023394491. It was assigned to this individual provider in the NPPES registry on October 28, 2011.

Where is Tammy Larson-cain located?

Tammy Larson-cain practices at 8405 N Pima Center Pkwy Ste 201, Scottsdale, AZ 85258. The listed phone number is (480) 587-6775.

What is Tammy Larson-cain's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Tammy Larson-cain enrolled in Medicare?

Yes. Tammy Larson-cain 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 organization bills Medicare for Tammy Larson-cain's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tammy Larson-cain reassigns Medicare benefits to Mayo Clinic Arizona (Scottsdale, AZ). The 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 Tammy Larson-cain's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Tammy Larson-cain accept?

Health plans from Sanford Health Plan list Tammy Larson-cain 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 Tammy Larson-cain was last updated on September 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 50 days 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.