John Zemjanis, M.D.
NPI 1093898272 · General Practice Physician · Carpinteria, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Zemjanis, M.D. is a General Practice Physician provider in Carpinteria, CA (NPI 1093898272).
Provider details
- NPI number
- 1093898272
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G25760 (CA)
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-23
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Zemjanis's NPI number?
- John Zemjanis's National Provider Identifier (NPI) is 1093898272, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Zemjanis's specialty?
- John Zemjanis is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is John Zemjanis located?
- John Zemjanis's practice location on file with NPPES is 5025 8th St, Carpinteria, CA 93013-2018.
- What is John Zemjanis's phone number?
- The practice phone number listed in the NPPES registry for John Zemjanis is (805) 566-1358.
- Does John Zemjanis accept Medicare?
- John Zemjanis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Zemjanis's NPI active?
- Yes — John Zemjanis's NPI (1093898272) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.