John Straznickas, M.D.
NPI 1548291164 · Addiction Psychiatry Physician · San Francisco, CA
John Straznickas, M.D. is a Addiction Psychiatry Physician provider in San Francisco, CA (NPI 1548291164).
Provider details
- NPI number
- 1548291164
- Entity type
- Individual
- Primary specialty
- Addiction Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G067608 (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
- 2006-07-05
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Straznickas's NPI number?
- John Straznickas's National Provider Identifier (NPI) is 1548291164, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Straznickas's specialty?
- John Straznickas is listed in the NPPES registry with a primary specialty of Addiction Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is John Straznickas located?
- John Straznickas's practice location on file with NPPES is 4150 Clement St # 116e, San Francisco, CA 94121-1545.
- What is John Straznickas's phone number?
- The practice phone number listed in the NPPES registry for John Straznickas is (415) 221-4810.
- Is John Straznickas's NPI active?
- Yes — John Straznickas's NPI (1548291164) 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.