Michael Lennon, MD
NPI 1093893596 · Internal Medicine Physician · Petaluma, CA
Michael Lennon, MD is a Internal Medicine Physician provider in Petaluma, CA (NPI 1093893596).
Provider details
- NPI number
- 1093893596
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G44033 (CA)
Specialties & taxonomies
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
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
- 2006-11-01
- Last updated
- 2014-03-21
Frequently asked questions
- What is Michael Lennon's NPI number?
- Michael Lennon's National Provider Identifier (NPI) is 1093893596, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Lennon's specialty?
- Michael Lennon is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Lennon located?
- Michael Lennon's practice location on file with NPPES is 412 Oak St, Petaluma, CA 94952-2709.
- What is Michael Lennon's phone number?
- The practice phone number listed in the NPPES registry for Michael Lennon is (707) 953-6587.
- Is Michael Lennon's NPI active?
- Yes — Michael Lennon's NPI (1093893596) is active in the NPPES registry as of the last update on 2014-03-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.