Larry Posner, MD
NPI 1548271216 · Allergy & Immunology Physician · Napa, CA
Larry Posner, MD is a Allergy & Immunology Physician provider in Napa, CA (NPI 1548271216).
Provider details
- NPI number
- 1548271216
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G52218 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
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
- 2006-08-10
- Last updated
- 2020-02-27
- Certified
- 2020-02-27
Frequently asked questions
- What is Larry Posner's NPI number?
- Larry Posner's National Provider Identifier (NPI) is 1548271216, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Larry Posner's specialty?
- Larry Posner is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Larry Posner located?
- Larry Posner's practice location on file with NPPES is 1100 Pear Tree Lane, Napa, CA 94558-6446.
- What is Larry Posner's phone number?
- The practice phone number listed in the NPPES registry for Larry Posner is (707) 258-8100.
- Is Larry Posner's NPI active?
- Yes — Larry Posner's NPI (1548271216) is active in the NPPES registry as of the last update on 2020-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.