NPPES file of Aug 9, 2026

Alejandro Diaz Chavez, M.D

Pulmonary Disease Physician · Roseburg, OR

Alejandro Diaz Chavez, M.D is a pulmonary disease physician with a practice address in Roseburg, Oregon, and NPI 1851731004, issued on Jul 2, 2013. Check the license (Oregon MD189966, as entered in NPPES) on the Oregon Medical Board; 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
1851731004
Name
Alejandro Diaz Chavez
Credential
M.D
Primary taxonomy
Pulmonary Disease Physician 207RP1001X
License number
MD189966 OR
Self-reported in NPPES; status is on the state search
Practice location
2460 NW Stewart Pkwy Ste 103, Roseburg, OR 97471
Phone
(541) 672-9515
Enumerated
Jul 2, 2013
Record last updated
Feb 21, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(541) 464-3177
Medicare enrollment
Enrolled (PECOS I20190705001261); 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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Verify Alejandro Diaz Chavez in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD189966
    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 Oregon license search

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2.2 times the Medicare Part D claims of the average pulmonary disease physician in 2024

3,125 Medicare Part D claims for 387 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 61% of claims.

  1. Alejandro Diaz Chavez3,125
  2. Specialty average1,425

Most prescribed

  1. Trelegy Ellipta360 claims
  2. Albuterol Sulfate Hfa289 claims
  3. Prednisone246 claims
  4. Budesonide-Formoterol Fumarate161 claims
  5. Anoro Ellipta142 claims
  6. Fluticasone-Salmeterol140 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): 97.6 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 score86.5
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $203.64

6 payments; by number, the most common kind was food and beverage; the largest payer was Sanofi-Aventis U.S. LLC. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alejandro Diaz Chavez$203.64
  2. Specialty average$5,159.88

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. Centennial Medical Group IncRoseburg, OR

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

Alejandro Diaz Chavez among 197 pulmonary disease physician records in Oregon

Alejandro Diaz Chavez, M.D is one of 197 pulmonary disease physician records with a practice address in Oregon. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 76% of them.

  • NPI issued2013 · 76% of these records are older, 21% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2007 · median 2005 among the 144 with a school on file
  • Record last updated2020 · 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 207RP1001X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pulmonary Disease Physician providers in Oregon

There are 197 pulmonary disease physician records in Oregon.

The 8 pulmonary disease physician records with the nearest ZIP codes

  1. Alpana Chandra, M.D.Roseburg, OR 974711033212923
  2. Razvan Gosman, MDRoseburg, OR 974711407832868
  3. Mohammed Halabiya, MDRoseburg, OR 974711972027191
  4. Robert Moss, M.D.Roseburg, OR 974711174567804
  5. Khuram Ameen, M.D.Springfield, OR 974771881600450
  6. Robert Carolan, M.D.Springfield, OR 974771578570719
  7. Wadih Chakkour, MDSpringfield, OR 974771588001895
  8. J Kintz, M.D.Springfield, OR 974771811903412

Common questions

What is Alejandro Diaz Chavez, M.D's NPI number?

Alejandro Diaz Chavez, M.D's National Provider Identifier (NPI) is 1851731004, issued on Jul 2, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Alejandro Diaz Chavez, M.D located?

The NPPES record lists a practice address at 2460 NW Stewart Pkwy Ste 103, Roseburg, OR, 97471. Phone: (541) 672-9515. Providers update this record themselves, so call before visiting.

How can I verify Alejandro Diaz Chavez, M.D's license?

NPPES lists Oregon license number MD189966, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Alejandro Diaz Chavez, M.D prescribe under Medicare Part D?

In 2024, Alejandro Diaz Chavez, M.D had 3,125 Medicare Part D claims for 387 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. Part D covers Medicare prescriptions only.

What is Alejandro Diaz Chavez, M.D's MIPS final score?

The 2023 MIPS final score is 97.6 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.