Larry Marianella, M.D.
NPI 1144257486 · Internal Medicine Physician · Santa Rosa, CA
Larry Marianella, M.D. is a Internal Medicine Physician provider in Santa Rosa, CA (NPI 1144257486).
Provider details
- NPI number
- 1144257486
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G038835 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 92 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 236 | 50 |
| Omeprazole | 140 | 33 |
| Gabapentin | 138 | 29 |
| Levothyroxine Sodium | 131 | 35 |
| Amlodipine Besylate | 120 | 32 |
| Benazepril Hcl | 120 | 31 |
| Quetiapine Fumarate | 108 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-26
- Last updated
- 2010-02-22
Frequently asked questions
- What is Larry Marianella's NPI number?
- Larry Marianella's National Provider Identifier (NPI) is 1144257486, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Larry Marianella's specialty?
- Larry Marianella is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Larry Marianella located?
- Larry Marianella's practice location on file with NPPES is 1515 Montgomery Dr, Santa Rosa, CA 95405-4500.
- What is Larry Marianella's phone number?
- The practice phone number listed in the NPPES registry for Larry Marianella is (707) 526-4865.
- Is Larry Marianella's NPI active?
- Yes — Larry Marianella's NPI (1144257486) is active in the NPPES registry as of the last update on 2010-02-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.