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MR. NATHAN OSTLER FNP-C
NPI 1023412301
Nurse Practitioner - Family in Mesa, AZ

Active since October 15, 2014PECOS EnrolledAccepts Medicare Assignment
4111 E AUTO VALLEY DRIVE, 209-4, MESA, AZ 85206(480) 939-3409(703) 634-7483 Get Directions Write a Review

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

Record update history: Jul 6, 2023, Apr 6, 2023, Jan 6, 2023 and 1 more (4 updates tracked since 2016).

About Mr. Nathan Ostler Fnp-c NPPES

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

MR. NATHAN OSTLER FNP-C (NPI 1023412301) is an individual family provider in Mesa, Arizona, licensed in Arizona (AP7346) and active in the NPI registry since October 2014. He is enrolled in Medicare PECOS, maintains a secondary practice location in Mesa, and is a graduate of Other (2014).

NPPES Registry Identity

NPI1023412301
Entity TypeIndividualMale
Primary Taxonomy363LF0000X
Provider Legal NameMR. NATHAN OSTLERCredential: FNP-C
Location Address4111 E AUTO VALLEY DRIVE, 209-4Mesa, AZ 85206
Mailing Address4049 E Holmes AveMesa, AZ 85206-3281 · (480) 939-3409 · Fax (703) 634-7483
Phone(480) 939-3409
Fax(703) 634-7483
Sole ProprietorYes
Medical School CMSOtherGraduated 2014
Enumeration DateOctober 15, 2014
Last NPPES UpdateJuly 6, 20234 updates tracked since enumeration
NPPES CertifiedJune 26, 2023
✔ NPI 1023412301 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in AZ · AP7346
4111 E AUTO VALLEY DRIVE, Mesa, AZ 85206
Open in Google Maps ↗

Secondary Practice Location 1

Location 14049 E Holmes AveMesa, AZ 85206-3281 · Phone (480) 939-3409 · Fax (703) 634-7483

Other Identifiers 1

Medicaid960757AZ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Imperial Insurance Companies, Inc., Oscar Health Plan, Inc..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

Mr. Nathan Ostler Fnp-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 ID5294957098
PECOS Enrollment IDI20141111002002
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 Nathan Ostler reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Healthcare Delivered LLC
2.6 mi
Primary Care
4049 E HOLMES AVE
Mesa, AZ 85206
  • Reassigned Medicare billing, Arizona enrollment
  • 2 clinicians in this Medicare group
NPI 1659010833 (480) 818-5551
Integrated Healthcare Mobile Solutions, LLC
12 mi
Family
1840 E BASELINE RD STE A1
Tempe, AZ 85283
  • Reassigned Medicare billing, Arizona enrollment
  • 22 clinicians in this Medicare group
NPI 1255749982 (480) 718-5400
Prescott Healthcare Solutions LLC
92 mi
Family Medicine
743 MILLER VALLEY RD
Prescott, AZ 86301
  • Reassigned Medicare billing, Arizona enrollment
  • 214 clinicians in this Medicare group
NPI 1821454505 (928) 777-9600

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 6

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.
392 services80 patients
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490
Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.
328 services49 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
32 services32 patients
Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes G0446
This is a yearly, personal consultation focused on behaviors affecting heart health. It lasts 15 minutes and may cover topics like diet, exercise, and stress management. It's about learning healthy habits to protect your heart.
31 services31 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
28 services28 patients
Face-to-face behavioral counseling for obesity, 15 minutes G0447
This is a 15-minute consultation where a healthcare professional discusses your eating habits, physical activity, and goals to help manage your weight. The aim is to provide personalized strategies to promote a healthier lifestyle and combat obesity.
15 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85206 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.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
11 suppliers21 claims53 services$5.33 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Nathan Ostler's NPI number?

The NPI number for Nathan Ostler is 1023412301. It was assigned to this individual provider in the NPPES registry on October 15, 2014.

Where is Nathan Ostler located?

Nathan Ostler practices at 4111 E Auto Valley Drive 209-4, Mesa, AZ 85206. The listed phone number is (480) 939-3409.

What is Nathan Ostler's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Nathan Ostler enrolled in Medicare?

Yes. Nathan Ostler 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 Nathan Ostler's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nathan Ostler reassigns Medicare benefits to 3 organizations: Healthcare Delivered LLC (Mesa, AZ), Integrated Healthcare Mobile Solutions, LLC (Tempe, AZ) and Prescott Healthcare Solutions LLC (Prescott, AZ). 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 Nathan Ostler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nathan Ostler accept?

Health plans from Imperial Insurance Companies, Inc. and Oscar Health Plan, Inc. list Nathan Ostler 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 Nathan Ostler was last updated on July 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.