NPPES file of Aug 9, 2026

Benjamin T. Clark, D.O.

Family Medicine Physician · Mesa, AZ

Benjamin T. Clark, D.O. is a family medicine physician with a practice address in Mesa, Arizona, and NPI 1831400894, issued on Jun 24, 2010. Check the license (Arizona 006841, as entered in NPPES) on the Arizona Medical Board; 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
1831400894
Name
Benjamin T. Clark
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
006841 AZ
Self-reported in NPPES; status is on the state search
Practice location
1840 S Stapley Dr Ste 101, Mesa, AZ 85204
Phone
(480) 464-6979
Enumerated
Jun 24, 2010
Record last updated
Dec 1, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(480) 464-6910
Medicare enrollment
Enrolled (PECOS I20180418002516); 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 1840 S Stapley Dr Ste 101

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

  1. Kathryn Cooper, MAMental Health Counselor1720890999
  2. Cathy GuinanFamily Nurse Practitioner1730328253
  3. Ritika Jain, MDFamily Medicine Physician1609510692
  4. Jonathan Rafael Lazaro, M.D.Family Medicine Physician1104266956
  5. Mia Melton, PHARMDPharmacist1235948688
  6. Kelly Pullman, AU.D.Audiologist-Hearing Aid Fitter1225451495

Verify Benjamin T. Clark in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 006841
    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
Open 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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81% fewer Medicare Part D claims than the average family medicine physician in 2024

668 Medicare Part D claims for 376 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 41 claims were for opioids.

  1. Benjamin Clark668
  2. Specialty average3,544

Most prescribed

  1. Prednisone108 claims
  2. Azithromycin60 claims
  3. Albuterol Sulfate Hfa56 claims
  4. Cefdinir43 claims
  5. Doxycycline Hyclate38 claims
  6. Cephalexin36 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: $1,146.45

10 payments; by number, the most common kind was travel and lodging; the largest payer was Merck Sharp & Dohme LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Benjamin Clark$1,146.45
  2. Specialty average$902.55

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. Nextcare Arizona I JV LLCMesa, AZ

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

Benjamin T. Clark among 3,119 family medicine physician records in Arizona

Benjamin T. Clark, D.O. is one of 3,119 family medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 62% of them.

  • NPI issued2010 · 62% of these records are older, 36% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2010 · median 2006 among the 1,775 with a school on file
  • Record last updated2021 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

194 family medicine physician records list a practice address in Mesa

They are 194 of the 9,151 NPPES records with a practice address in Mesa, and 3,119 family medicine physician records in Arizona.

The 8 family medicine physician records with the nearest ZIP codes

  1. Cory Anderson, MDMesa, AZ 852041720050727
  2. Cuauhtemoc Gallardo-Prado, M.D.Mesa, AZ 852041700116605
  3. Allen Germaine, MDMesa, AZ 852041689658908
  4. Donald Griner, D.O.Mesa, AZ 852041821091497
  5. Marvin Hammond, MDMesa, AZ 852041851371876
  6. John Kuss, DOMesa, AZ 852041366412504
  7. Luz Lopez, M.DMesa, AZ 852041124081823
  8. Mariolga Mercado, D.O.Mesa, AZ 852041861452575

Common questions

What is Benjamin T. Clark, D.O.'s NPI number?

Benjamin T. Clark, D.O.'s National Provider Identifier (NPI) is 1831400894, issued on Jun 24, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Benjamin T. Clark, D.O. located?

The NPPES record lists a practice address at 1840 S Stapley Dr Ste 101, Mesa, AZ, 85204. Phone: (480) 464-6979. Providers update this record themselves, so call before visiting.

How can I verify Benjamin T. Clark, D.O.'s license?

NPPES lists Arizona license number 006841, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Benjamin T. Clark, D.O. prescribe under Medicare Part D?

In 2024, Benjamin T. Clark, D.O. had 668 Medicare Part D claims for 376 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.