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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.

TIMOTHY R PENNISTON FNP-C
NPI 1144243692
Nurse Practitioner - Family in Show Low, AZ

Active since July 25, 2006PECOS EnrolledAccepts Medicare Assignment
4951 S WHITE MOUNTAIN RD BLDG A, SHOW LOW, AZ 85901(928) 532-3926(928) 537-9634 Get Directions Write a Review

NPPES record last updated: August 7, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Aug 7, 2026, Feb 9, 2024, Nov 16, 2023 and 3 more (6 updates tracked since 2018).

About Timothy R Penniston Fnp-c NPPES

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

TIMOTHY R PENNISTON FNP-C (NPI 1144243692) is an individual family provider in Show Low, Arizona, licensed in Arizona (AP3433) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Other (2001).

NPPES Registry Identity

NPI1144243692
Entity TypeIndividualMale
Primary Taxonomy363LF0000X
Provider Legal NameTIMOTHY R PENNISTONCredential: FNP-C
Location Address4951 S WHITE MOUNTAIN RD BLDG AShow Low, AZ 85901-7827
Mailing Address4951 S White Mountain Rd Bldg AShow Low, AZ 85901-7827 · (928) 532-3926 · Fax (928) 537-9634
Phone(928) 532-3926
Fax(928) 537-9634
Sole ProprietorNo
Medical School CMSOtherGraduated 2001
Enumeration DateJuly 25, 2006
Last NPPES UpdateAugust 7, 20266 updates tracked since enumeration
NPPES CertifiedAugust 7, 2026
✔ NPI 1144243692 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 · AP3433
4951 S WHITE MOUNTAIN RD BLDG A, Show Low, AZ 85901
Open in Google Maps ↗

Other Identifiers 1

Medicaid453927AZ

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, Imperial Insurance Companies, Inc. and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Timothy R Penniston 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 ID8729035472
PECOS Enrollment IDI20050405000384, I20090928000360
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85901 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 20

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

DR. JACOB BLAINE OLDHAM
Orthopaedic Surgery
4951 S WHITE MOUNTAIN RD BLDG A
SHOW LOW, AZ 85901
Navajo County (928) 537-6700
MR. CURTIS VANCE BIRDNO PA-C
Physician Assistant (Medical)
4951 S WHITE MOUNTAIN RD BLDG A
SHOW LOW, AZ 85901
Navajo County (928) 532-1605
RAELYNN M. MUSICK N.P.
Nurse Practitioner (Family)
4951 S WHITE MOUNTAIN RD BLDG A
SHOW LOW, AZ 85901
Navajo County (928) 537-6700
QUEZIA HALL PA
Physician Assistant
4951 S WHITE MOUNTAIN RD BLDG A
SHOW LOW, AZ 85901
Navajo County (928) 537-6700
KATHERYN M JOHNSTON FNP-C
Nurse Practitioner (Family)
4951 S WHITE MOUNTAIN RD BLDG A
SHOW LOW, AZ 85901
Navajo County (928) 537-6700
CONSTANCE L COLLMAN FNP
Nurse Practitioner (Family)
4951 S WHITE MOUNTAIN RD BLDG A
SHOW LOW, AZ 85901
Navajo County (928) 537-6700
LADAWNA RAE WALLACE FNP
Nurse Practitioner (Family)
4951 S WHITE MOUNTAIN RD BLDG A
SHOW LOW, AZ 85901
Navajo County (928) 532-3926
RYAN VARGA D.O.
Family Medicine
4951 S WHITE MOUNTAIN RD BLDG A
SHOW LOW, AZ 85901
Navajo County (928) 537-6700

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 Penniston's NPI number?

The NPI number for Timothy Penniston is 1144243692. It was assigned to this individual provider in the NPPES registry on July 25, 2006.

Where is Timothy Penniston located?

Timothy Penniston practices at 4951 S White Mountain Rd Bldg A, Show Low, AZ 85901. The listed phone number is (928) 532-3926.

What is Timothy Penniston's specialty?

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

Is Timothy Penniston enrolled in Medicare?

Yes. Timothy Penniston 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.

What insurance does Timothy Penniston accept?

Health plans from Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona, Imperial Insurance Companies, Inc. and UnitedHealthcare list Timothy Penniston 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 Penniston was last updated on August 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.