Michael Horowitz, MD
NPI 1275647174 · Cardiovascular Disease Physician · Tiburon, CA
Michael Horowitz, MD is a Cardiovascular Disease Physician provider in Tiburon, CA (NPI 1275647174).
Provider details
- NPI number
- 1275647174
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- G22771 (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
- 2006-08-18
- Last updated
- 2024-10-14
- Certified
- 2024-10-13
Frequently asked questions
- What is Michael Horowitz's NPI number?
- Michael Horowitz's National Provider Identifier (NPI) is 1275647174, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Horowitz's specialty?
- Michael Horowitz is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Horowitz located?
- Michael Horowitz's practice location on file with NPPES is 253 Trinidad Dr, Tiburon, CA 94920-1039.
- What is Michael Horowitz's phone number?
- The practice phone number listed in the NPPES registry for Michael Horowitz is (201) 563-2205.
- Is Michael Horowitz's NPI active?
- Yes — Michael Horowitz's NPI (1275647174) is active in the NPPES registry as of the last update on 2024-10-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.