Doctor profile · Federal record

Dr. Alejandro Diaz Chavez, M.D

Pulmonary Disease Physician (CMS: Pulmonary Disease) · Critical Care Medicine (Internal Medicine) Physician · Roseburg, OR

  • NPI 1851731004
  • Accepts Medicare
  • MIPS 93.3 / 100 · 2023
  • 19 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2460 Nw Stewart Pkwy Ste 103
Roseburg, OR 97471
(541) 672-9515
fax (541) 464-3177
Mailing address
201 Nw Medical Loop Ste 190
Roseburg, OR 974718835

Credentials & registration

NPPES · NUCC
NPI registered
July 2013 — 13 yrs on file
Profile last updated
February 21, 2020
Year of graduation
2007 — 19 yrs since
Specialty taxonomy
207RP1001X — NUCC code
State license (1)
Oregon #MD189966

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1851731004. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,099
Distinct HCPCS
10
Medicare allowed
$72,270
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 198 166 $87
94060 Test to measure expiratory airflow and volume changes before and after medication administration 181 179 $10
94729 Test to examine how well the lungs exchange gases 173 171 $9
94726 Test to determine lung volumes using sensors 172 170 $12
99214 Established patient office or other outpatient visit, 30-39 minutes 171 133 $123
99291 Critical care, first 30-74 minutes 61 30 $203
99204 New patient office or other outpatient visit, 45-59 minutes 42 42 $160
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 17 17 $283
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 17 12 $75
G0009 Administration of pneumococcal vaccine 17 17 $30

In context: peer comparison

Among 2 peers in Roseburg Pulmonary Disease Physician, average services per provider: 86. This provider delivers 13× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$204
Transactions
6
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Sanofi-Aventis U.S. LLC 1 $88.99
GlaxoSmithKline, LLC. 4 $80.68
AstraZeneca Pharmaceuticals Lp 1 $33.97

By nature of payment

Food and Beverage
$115
Education
$89

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,016
Patients
471
Total drug cost
$830,022
Drug Type Claims Patients Total cost
Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) Brand 370 64 $300,171
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 266 74 $10,301
Prednisone Generic 210 79 $1,017
Symbicort (Budesonide/Formoterol Fumarate) Brand 174 39 $73,366
Anoro Ellipta (Umeclidinium Brm/Vilanterol Tr) Brand 150 26 $82,371
Advair Diskus (Fluticasone Propion/Salmeterol) Brand 104 21 $63,052
Spiriva Handihaler (Tiotropium Bromide) Brand 94 15 $53,305
Spiriva Respimat (Tiotropium Bromide) Brand 89 21 $51,437
Breo Ellipta (Fluticasone/Vilanterol) Brand 87 17 $43,396
Montelukast Sodium Generic 82 17 $1,007

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Alejandro Diaz Chavez's medical specialty?
Dr. Alejandro Diaz Chavez practices Pulmonary Disease Physician in Roseburg, OR.
Where does Dr. Alejandro Diaz Chavez practice?
Dr. Alejandro Diaz Chavez practices at 2460 Nw Stewart Pkwy Ste 103, Roseburg, OR 97471. Office phone: 5416729515.
What is Dr. Alejandro Diaz Chavez's NPI?
Dr. Alejandro Diaz Chavez's National Provider Identifier (NPI) is 1851731004, issued by NPPES.
Does Dr. Alejandro Diaz Chavez accept Medicare assignment?
Yes. Dr. Alejandro Diaz Chavez accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alejandro Diaz Chavez commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Test to measure expiratory airflow and volume changes before and after medication administration (HCPCS 94060); Test to examine how well the lungs exchange gases (HCPCS 94729). Source: CMS Medicare Physician & Other Practitioners file.