NPPES file of Aug 9, 2026

Dmitriy Zak, M.D.

Hematology & Oncology Physician · Mountain Home, AR

Dmitriy Zak, M.D. is a hematology & oncology physician with a practice address in Mountain Home, Arkansas, and NPI 1548371289, issued on Aug 31, 2006. Check the license (Arkansas E12161, as entered in NPPES) on the Arkansas State 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
1548371289
Name
Dmitriy Zak
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
E12161 AR
32345 AL
2275741 NY
Self-reported in NPPES; status is on the state search
Practice location
639 Hospital Dr, Mountain Home, AR 72653
Phone
(479) 587-1700
Enumerated
Aug 31, 2006
Record last updated
Jul 6, 2026
Fax
(479) 587-1366
Medicare enrollment
Enrolled (PECOS I20190528002290); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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8 nearest hematology & oncology physician records → All 103 in Arkansas → Look up another NPI →

Also registered at 639 Hospital Dr

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

  1. Jamie Lee AldakkourHematology & Oncology Physician1366070179
  2. Martin Barnes, M.D.Hematology & Oncology Physician1730583089
  3. Jennifer Carpenter, FNPNurse Practitioner1073249280
  4. Amanda Carson, APRNNurse Practitioner1558710608
  5. Peter Li, MDHematology & Oncology Physician1942709647
  6. Leslie Lockridge, MDHematology (Internal Medicine) Physician1437133352

Verify Dmitriy Zak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArkansas State Medical Board
    Search for license E12161    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 Arkansas 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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2.4 times the Medicare Part D claims of the average hematology & oncology physician in 2024

2,063 Medicare Part D claims for 372 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 402 claims were for opioids.

  1. Dmitriy Zak2,063
  2. Specialty average877

Most prescribed

  1. Anastrozole174 claims
  2. Hydrocodone-Acetaminophen150 claims
  3. Lansoprazole133 claims
  4. Ondansetron Hcl127 claims
  5. Dexamethasone91 claims
  6. Fentanyl87 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: $1,391.68

56 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Dmitriy Zak$1,391.68
  2. Specialty average$7,481.41

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. Highlands Oncology Group PAMountain Home, AR

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

Dmitriy Zak among 103 hematology & oncology physician records in Arkansas

Dmitriy Zak, M.D. is one of 103 hematology & oncology physician records with a practice address in Arkansas. 90% 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 12% of them.

  • NPI issued2006 · 12% of these records are older, 51% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated1994 · median 2002 among the 80 with a school on file
  • Record last updated2026 · 34% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Arkansas

There are 103 hematology & oncology physician records in Arkansas.

All 103 in Arkansas → Every provider in Mountain Home → Hematology & Oncology Physician nationwide →

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Jamie Lee AldakkourMountain Home, AR 726531366070179
  2. Martin Barnes, M.D.Mountain Home, AR 726531730583089
  3. Stephen Lattanzi, M.D.Mountain Home, AR 726531801894555
  4. Peter Li, MDMountain Home, AR 726531942709647
  5. Richard White, M.D.Mountain Home, AR 726531700840980
  6. K'Anne Arthur, MDFayetteville, AR 727031144663923
  7. Brooke Brander, DOFayetteville, AR 727031083838239
  8. Lynsay Brautnick, M.D.Fayetteville, AR 727031548317340

Common questions

What is Dmitriy Zak, M.D.'s NPI number?

Dmitriy Zak, M.D.'s National Provider Identifier (NPI) is 1548371289, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Dmitriy Zak, M.D. located?

The NPPES record lists a practice address at 639 Hospital Dr, Mountain Home, AR, 72653. Phone: (479) 587-1700. Providers update this record themselves, so call before visiting.

How can I verify Dmitriy Zak, M.D.'s license?

NPPES lists Arkansas license number E12161, as entered by the provider. Search the Arkansas State Medical Board at https://armedicalboard.adh.arkansas.gov/public/verify/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Dmitriy Zak, M.D. prescribe under Medicare Part D?

In 2024, Dmitriy Zak, M.D. had 2,063 Medicare Part D claims for 372 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.