John Guy Mastronarde, MD
Pulmonary Disease Physician · Portland, OR
John Guy Mastronarde, MD is a pulmonary disease physician with a practice address in Portland, Oregon, and NPI 1093828634, issued on Aug 17, 2006. Check the license (Oregon MD173777, as entered in NPPES) on the Oregon Medical Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Guy Mastronarde
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License numbers
- MD173777 OR
35059362 OH
Self-reported in NPPES; status is on the state search - Practice location
- 1111 NE 99TH Ave, Portland, OR 97220
- Phone
- (503) 963-3030
- Enumerated
- Aug 17, 2006
- Record last updated
- Sep 21, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (503) 963-3140
- Medicaid IDs
- 0786690 OH
2046986 WA
129950 OR - Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 197 in Oregon → Look up another NPI →
Also registered at 1111 NE 99TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeffrey Albaugh, MDGastroenterology Physician1184626087
- Kent Benner, MDGastroenterology Physician1649272451
- Sidharth Bhardwaj, M.D.Gastroenterology Physician1831156025
- William Bowerfind, MDPulmonary Disease Physician1801898663
- Harry Bray, MDGastroenterology Physician1790787554
- Sumner Brooks, MPH, RD, CSSDRegistered Dietitian1477833390
Verify John Guy Mastronarde in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD173777Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John Guy Mastronarde among 197 pulmonary disease physician records in Oregon
John Guy Mastronarde, MD 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 not. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 55% newer
- In a Medicare fileNo · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 73% of these records are
- Record last updated2015 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 197 in Oregon → Every provider in Portland → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- William Bowerfind, MDPortland, OR 972201801898663
- Rhett Cummings, MDPortland, OR 972201174525844
- Bradford Glavan, MDPortland, OR 972201255441739
- David Hotchkin, MDPortland, OR 972201245340538
- Marc Jacobs, MDPortland, OR 972201073620332
- John Keppel, MDPortland, OR 972201386636835
- Michael Lefor, MDPortland, OR 972201003808452
- Louis Libby, MDPortland, OR 972201003808486
Common questions
What is John Guy Mastronarde, MD's NPI number?
John Guy Mastronarde, MD's National Provider Identifier (NPI) is 1093828634, issued on Aug 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Guy Mastronarde, MD located?
The NPPES record lists a practice address at 1111 NE 99TH Ave, Portland, OR, 97220. Phone: (503) 963-3030. Providers update this record themselves, so call before visiting.
How can I verify John Guy Mastronarde, MD's license?
NPPES lists Oregon license number MD173777, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.