John Porteous, MD
NPI 1669460630 · Surgery Physician · Modesto, CA
John Porteous, MD is a Surgery Physician provider in Modesto, CA (NPI 1669460630).
Provider details
- NPI number
- 1669460630
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- C2981 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-12
- Last updated
- 2011-03-29
Frequently asked questions
- What is John Porteous's NPI number?
- John Porteous's National Provider Identifier (NPI) is 1669460630, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Porteous's specialty?
- John Porteous is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is John Porteous located?
- John Porteous's practice location on file with NPPES is 1541 Florida Ave, Modesto, CA 95350-4429.
- What is John Porteous's phone number?
- The practice phone number listed in the NPPES registry for John Porteous is (209) 577-3388.
- Is John Porteous's NPI active?
- Yes — John Porteous's NPI (1669460630) is active in the NPPES registry as of the last update on 2011-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.