John Guerreiro, M.D.
NPI 1518040948 · Family Medicine Physician · Beaverton, OR
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Guerreiro, M.D. is a Family Medicine Physician provider in Beaverton, OR (NPI 1518040948).
Provider details
- NPI number
- 1518040948
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD26933 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 70 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 118 | 41 |
| Omeprazole | 107 | 35 |
| Lisinopril | 88 | 32 |
| Losartan Potassium | 86 | 23 |
| Levothyroxine Sodium | 85 | 25 |
| Oxycodone Hcl | 78 | 15 |
| Metformin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-21
- Last updated
- 2011-12-15
Frequently asked questions
- What is John Guerreiro's NPI number?
- John Guerreiro's National Provider Identifier (NPI) is 1518040948, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Guerreiro's specialty?
- John Guerreiro is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Guerreiro located?
- John Guerreiro's practice location on file with NPPES is 2935 Sw Cedar Hills Blvd, Beaverton, OR 97005-1342.
- What is John Guerreiro's phone number?
- The practice phone number listed in the NPPES registry for John Guerreiro is (503) 352-6000.
- Does John Guerreiro accept Medicare?
- John Guerreiro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Guerreiro's NPI active?
- Yes — John Guerreiro's NPI (1518040948) is active in the NPPES registry as of the last update on 2011-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.