NPPES file of Aug 9, 2026

Dennis L. Little, M.D.

Specialist · Prescott Valley, AZ

Dennis L. Little, M.D. is a specialist with a practice address in Prescott Valley, Arizona, and NPI 1801832563, issued on Jun 21, 2006. Check the license (Arizona 13890, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801832563
Name
Dennis L. Little
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
13890 AZ
Self-reported in NPPES; status is on the state search
Practice location
3051 N Windsong Dr, Prescott Valley, AZ 86314
Phone
(928) 772-2591
Enumerated
Jun 21, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(928) 772-1148
Medicare enrollment
Enrolled (PECOS I20110517000161); accepts Medicare assignment
Medical or professional school
Stanford University School Of Medicine, 1980
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 3051 N Windsong Dr

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

  1. Mica Adair, PAMedical Physician Assistant1831653377
  2. Heidi Alessi, RN FNP CPediatric Registered Nurse1326169657
  3. James McCarver, M.D.Specialist1982640645
  4. Preston Miller, PA-CMedical Physician Assistant1477794451

Verify Dennis L. Little 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 13890
    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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6.0 times the Medicare Part D claims of the average specialist in 2024

8,234 Medicare Part D claims for 671 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 326 claims were for opioids.

  1. Dennis Little8,234
  2. Specialty average1,380

Most prescribed

  1. Levothyroxine Sodium578 claims
  2. Atorvastatin Calcium415 claims
  3. Lisinopril362 claims
  4. Metformin Hcl306 claims
  5. Losartan Potassium262 claims
  6. Amlodipine Besylate209 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.

The MIPS final score for 2023 (Medicare payment program): 18.8 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score0.0
  2. Costout of 100 · 30%62.6
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $13.19

1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Dennis Little$13.19
  2. Specialty average$4,760.79

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. Doctor's Office LLCPrescott, AZ

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

Dennis L. Little among 747 specialist records in Arizona

Dennis L. Little, M.D. is one of 747 specialist records with a practice address in Arizona. 25% 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 14% of them.

  • NPI issued2006 · 14% of these records are older, 52% newer
  • In a Medicare fileYes · 25% of these records are
  • In the CMS Doctors and Clinicians fileYes · 16% of these records are
  • Graduated1980 · median 1992 among the 117 with a school on file
  • Record last updated2007 · 83% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

10 specialist records list a practice address in Prescott Valley

They are 10 of the 642 NPPES records with a practice address in Prescott Valley, and 747 specialist records in Arizona.

The 8 specialist records with the nearest ZIP codes

  1. Phyllis Arellanes, LMTPrescott Valley, AZ 863141417364266
  2. Madelynn GrubbsPrescott Valley, AZ 863141376681197
  3. Kelley Haag, RNPrescott Valley, AZ 863141154481240
  4. Mark HaagPrescott Valley, AZ 863141417174541
  5. James McCarver, M.D.Prescott Valley, AZ 863141982640645
  6. Nitin Patel, M.D.Prescott Valley, AZ 863141780620484
  7. Carol PittsPrescott Valley, AZ 863141548407091
  8. Nicole ScottPrescott Valley, AZ 863141164803433

Common questions

What is Dennis L. Little, M.D.'s NPI number?

Dennis L. Little, M.D.'s National Provider Identifier (NPI) is 1801832563, issued on Jun 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Dennis L. Little, M.D. located?

The NPPES record lists a practice address at 3051 N Windsong Dr, Prescott Valley, AZ, 86314. Phone: (928) 772-2591. Providers update this record themselves, so call before visiting.

How can I verify Dennis L. Little, M.D.'s license?

NPPES lists Arizona license number 13890, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Dennis L. Little, M.D. prescribe under Medicare Part D?

In 2024, Dennis L. Little, M.D. had 8,234 Medicare Part D claims for 671 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.

What is Dennis L. Little, M.D.'s MIPS final score?

The 2023 MIPS final score is 18.8 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.