NPPES file of Aug 9, 2026

David Dimcheff, MD

Internal Medicine Physician · Tucson, AZ

David Dimcheff, MD is an internal medicine physician with a practice address in Tucson, Arizona, and NPI 1093278434, issued on Apr 11, 2019. Check the license (Arizona 66550, 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
1093278434
Name
David Dimcheff
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
66550 AZ
R77318 AZ
Self-reported in NPPES; status is on the state search
Practice location
1 W Broadway Blvd # 151, Tucson, AZ 85701
Phone
(520) 670-3909
Enumerated
Apr 11, 2019
Record last updated
Mar 11, 2025
Fax
(520) 309-2560
Medicare enrollment
Enrolled (PECOS I20221104002177); accepts Medicare assignment
Medical or professional school
Wayne State University School Of Medicine, 2019
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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Verify David Dimcheff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 66550
    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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63% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,164 Medicare Part D claims for 143 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 12 claims were for opioids.

  1. David Dimcheff1,164
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium102 claims
  2. Lisinopril86 claims
  3. Amlodipine Besylate69 claims
  4. Losartan Potassium38 claims
  5. Omeprazole36 claims
  6. Albuterol Sulfate Hfa35 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.

Bills Medicare through one group practice

  1. EL Rio Santa Cruz Neighborhood Health Center, Inc.Tucson, AZ

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

David Dimcheff among 2,853 internal medicine physician records in Arizona

David Dimcheff, MD is one of 2,853 internal 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 2019, is newer than 79% of them.

  • NPI issued2019 · 79% of these records are older, 19% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2019 · median 2003 among the 1,643 with a school on file
  • Record last updated2025 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

651 internal medicine physician records list a practice address in Tucson

They are 651 of the 18,788 NPPES records with a practice address in Tucson, and 2,853 internal medicine physician records in Arizona.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Harvey Maksvytis, MDTucson, AZ 857011770550220
  2. J. Olson-Garewal, MDTucson, AZ 857011164641072
  3. Homeira Baghdadi, MDTucson, AZ 857041215908397
  4. Scott Biehler, D.O.Tucson, AZ 857041518940089
  5. Michael Boren, MDTucson, AZ 857041962473041
  6. Randall Brown, M.D.Tucson, AZ 857041881681393
  7. John Graham, MDTucson, AZ 857041336137538
  8. Paul Koss, MDTucson, AZ 857041194701029

Common questions

What is David Dimcheff, MD's NPI number?

David Dimcheff, MD's National Provider Identifier (NPI) is 1093278434, issued on Apr 11, 2019. An NPI identifies a provider in billing; it is not a license.

Where is David Dimcheff, MD located?

The NPPES record lists a practice address at 1 W Broadway Blvd # 151, Tucson, AZ, 85701. Phone: (520) 670-3909. Providers update this record themselves, so call before visiting.

How can I verify David Dimcheff, MD's license?

NPPES lists Arizona license number 66550, 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 David Dimcheff, MD prescribe under Medicare Part D?

In 2024, David Dimcheff, MD had 1,164 Medicare Part D claims for 143 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.