NPPES file of Aug 9, 2026

Timothy R. Penniston, FNP-C

Family Nurse Practitioner · Show Low, AZ

Timothy R. Penniston, FNP-C is a family nurse practitioner with a practice address in Show Low, Arizona, and NPI 1144243692, issued on Jul 25, 2006. Check the license (Arizona AP3433, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1144243692
Name
Timothy R. Penniston
Credential
FNP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
AP3433 AZ
Self-reported in NPPES; status is on the state search
Practice location
4951 S White Mountain RD Bldg A, Show Low, AZ 85901
Phone
(928) 532-3926
Enumerated
Jul 25, 2006
Record last updated
Aug 7, 2026
Fax
(928) 537-9634
Medicaid ID
453927 AZ
Medicare enrollment
Enrolled (PECOS I20050405000384); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4951 S White Mountain RD Bldg A

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Chase Adams, DOFamily Medicine Physician1437847621
  2. Keith Amaral, MDPediatrics Physician1417416496
  3. Matthew BelsheFamily Medicine Physician1821435579
  4. Curtis Birdno, PA-CMedical Physician Assistant1063740884
  5. Geoffrey Boyer, DOSurgery Physician1225667033
  6. Michael Boyle, M.D.Surgery Physician1245294552

Verify Timothy R. Penniston in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license AP3433
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Arizona license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.6 times the Medicare Part D claims of the average family nurse practitioner in 2024

3,430 Medicare Part D claims for 660 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 32 claims were for opioids.

  1. Timothy Penniston3,430
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium202 claims
  2. Levothyroxine Sodium178 claims
  3. Lisinopril157 claims
  4. Losartan Potassium149 claims
  5. Amlodipine Besylate116 claims
  6. Azithromycin106 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $33.28

2 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Timothy Penniston$33.28
  2. Specialty average$650.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Summit Healthcare Medical AssociatesSnowflake, AZ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Timothy R. Penniston among 5,933 family nurse practitioner records in Arizona

Timothy R. Penniston, FNP-C is one of 5,933 family nurse practitioner records with a practice address in Arizona. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 91% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2001 · median 2019 among the 3,510 with a school on file
  • Record last updated2026 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

32 family nurse practitioner records list a practice address in Show Low

They are 32 of the 382 NPPES records with a practice address in Show Low, and 5,933 family nurse practitioner records in Arizona.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Nicolette Broby, FNPShow Low, AZ 859011235641382
  2. Kelly Curiel, FNPShow Low, AZ 859011043673262
  3. Linda Fischer, FNP-CShow Low, AZ 859011164737599
  4. Deborah Gardner, APRN, FNPShow Low, AZ 859011568669489
  5. Deepa Khari, FNP-CShow Low, AZ 859011124547252
  6. Susan Lasala-Wood, DNP FNP-C, RNFAShow Low, AZ 859011457667016
  7. Elizabeth Miller, FNPShow Low, AZ 859011154860765
  8. Raelynn Musick, N.P.Show Low, AZ 859011073946562

Common questions

What is Timothy R. Penniston, FNP-C's NPI number?

Timothy R. Penniston, FNP-C's National Provider Identifier (NPI) is 1144243692, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Timothy R. Penniston, FNP-C located?

The NPPES record lists a practice address at 4951 S White Mountain RD Bldg A, Show Low, AZ, 85901. Phone: (928) 532-3926. Providers update this record themselves, so call before visiting.

How can I verify Timothy R. Penniston, FNP-C's license?

NPPES lists Arizona license number AP3433, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Timothy R. Penniston, FNP-C prescribe under Medicare Part D?

In 2024, Timothy R. Penniston, FNP-C had 3,430 Medicare Part D claims for 660 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.