NPPES file of Aug 9, 2026

Michael J. Finkelstein, M.D.

Internal Medicine Physician · Oro Valley, AZ

Michael J. Finkelstein, M.D. is an internal medicine physician with a practice address in Oro Valley, Arizona, and NPI 1417932286, issued on Dec 14, 2005. Check the license (Arizona 20595, 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
1417932286
Name
Michael J. Finkelstein
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
20595 AZ
Self-reported in NPPES; status is on the state search
Practice location
10425 N Oracle RD, Oro Valley, AZ 85737
Phone
(520) 544-7644
Enumerated
Dec 14, 2005
Record last updated
Mar 28, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(520) 544-0548
Medicaid ID
383620 AZ
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →

Also registered at 10425 N Oracle RD

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

  1. Thomas Griffin Jr., M.D.Family Medicine Physician1134104532

Verify Michael J. Finkelstein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 20595    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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Industry payments in 2024: $18.50

1 payment: food and beverage; the largest payer was Ferring Pharmaceuticals Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Finkelstein$18.50
  2. Specialty average$1,303.06

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

Michael J. Finkelstein among 2,853 internal medicine physician records in Arizona

Michael J. Finkelstein, M.D. 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 87% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 58% of these records are
  • Record last updated2014 · 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).

14 internal medicine physician records list a practice address in Oro Valley

They are 14 of the 542 NPPES records with a practice address in Oro Valley, and 2,853 internal medicine physician records in Arizona.

All 2,853 in Arizona → Every provider in Oro Valley → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Lisa Emmans, MDTucson, AZ 857371356417414
  2. Sanjaya Hebbar, M.D.Oro Valley, AZ 857371366435455
  3. Eun Oh, MDOro Valley, AZ 857371558391672
  4. Sebastian Silva, MDTucson, AZ 857371639668411
  5. James Yanes, M.D,Tucson, AZ 857371730372251
  6. Gerald Coats, MDTucson, AZ 857391114979879
  7. Joyce Honorof, M.D.Tucson, AZ 857391376511196
  8. Robert Kalinske, M.D.Tucson, AZ 857391144382318

Common questions

What is Michael J. Finkelstein, M.D.'s NPI number?

Michael J. Finkelstein, M.D.'s National Provider Identifier (NPI) is 1417932286, issued on Dec 14, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Michael J. Finkelstein, M.D. located?

The NPPES record lists a practice address at 10425 N Oracle RD, Oro Valley, AZ, 85737. Phone: (520) 544-7644. Providers update this record themselves, so call before visiting.

How can I verify Michael J. Finkelstein, M.D.'s license?

NPPES lists Arizona license number 20595, 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.

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.