NPPES file of Aug 9, 2026

Ellen M. Eichler, MD

Internal Medicine Physician · Tucson, AZ

Ellen M. Eichler, MD is an internal medicine physician with a practice address in Tucson, Arizona, and NPI 1164478202, issued on May 26, 2006. Check the license (Arizona 20048, 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
1164478202
Name
Ellen M. Eichler
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
20048 AZ
Self-reported in NPPES; status is on the state search
Practice location
6274 E Grant Road, Tucson, AZ 85712
Phone
(520) 298-3000
Enumerated
May 26, 2006
Record last updated
Apr 25, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(520) 296-6695
Medicare enrollment
Enrolled (PECOS I20100520000869); accepts Medicare assignment
Medical or professional school
Morehouse School Of Medicine, 1987
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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Verify Ellen M. Eichler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 20048
    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

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3.5 times the Medicare Part D claims of the average internal medicine physician in 2024

11,012 Medicare Part D claims for 823 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 277 claims were for opioids.

  1. Ellen Eichler11,012
  2. Specialty average3,176

Most prescribed

  1. Levothyroxine Sodium688 claims
  2. Atorvastatin Calcium585 claims
  3. Amlodipine Besylate474 claims
  4. Losartan Potassium421 claims
  5. Simvastatin332 claims
  6. Gabapentin331 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. Arizona Community Physicians PCTucson, AZ

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

Ellen M. Eichler among 2,853 internal medicine physician records in Arizona

Ellen M. Eichler, 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 2006, is newer than 13% of them.

  • NPI issued2006 · 13% of these records are older, 55% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated1987 · median 2003 among the 1,643 with a school on file
  • Record last updated2008 · 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. William Abraham, MDTucson, AZ 857121669468195
  2. Sheela Bhat, M.D.Tucson, AZ 857121598752008
  3. Muralikrishna Bhat, M.D.Tucson, AZ 857121114914637
  4. Douglas Bischoff, M.D.Tucson, AZ 857121821085333
  5. George Haloftis, D.O.Tucson, AZ 857121740277268
  6. Thomas Headlee, M.D.Tucson, AZ 857121194711630
  7. Kathleen Iveson, M.D.Tucson, AZ 857121720074263
  8. Gerome Kantor, MDTucson, AZ 857121407850290

Common questions

What is Ellen M. Eichler, MD's NPI number?

Ellen M. Eichler, MD's National Provider Identifier (NPI) is 1164478202, issued on May 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ellen M. Eichler, MD located?

The NPPES record lists a practice address at 6274 E Grant Road, Tucson, AZ, 85712. Phone: (520) 298-3000. Providers update this record themselves, so call before visiting.

How can I verify Ellen M. Eichler, MD's license?

NPPES lists Arizona license number 20048, 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 Ellen M. Eichler, MD prescribe under Medicare Part D?

In 2024, Ellen M. Eichler, MD had 11,012 Medicare Part D claims for 823 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.