Michael Wallack, M.D.
NPI 1689791139 · Internal Medicine Physician · San Fernando, CA
Michael Wallack, M.D. is a Internal Medicine Physician provider in San Fernando, CA (NPI 1689791139).
Provider details
- NPI number
- 1689791139
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G12118 (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
- 2007-03-22
- Last updated
- 2007-07-08
Frequently asked questions
- What is Michael Wallack's NPI number?
- Michael Wallack's National Provider Identifier (NPI) is 1689791139, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Wallack's specialty?
- Michael Wallack is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Wallack located?
- Michael Wallack's practice location on file with NPPES is 1600 San Fernando Road, San Fernando, CA 91340.
- What is Michael Wallack's phone number?
- The practice phone number listed in the NPPES registry for Michael Wallack is (818) 365-8086.
- Is Michael Wallack's NPI active?
- Yes — Michael Wallack's NPI (1689791139) 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.