Susan Gross, MD
NPI 1588714380 · Internal Medicine Physician · Petaluma, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Susan Gross, MD is a Internal Medicine Physician provider in Petaluma, CA (NPI 1588714380).
Provider details
- NPI number
- 1588714380
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A85535 (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 · 65 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 176 | 88 |
| Levothyroxine Sodium | 160 | 62 |
| Losartan Potassium | 139 | 58 |
| Amlodipine Besylate | 122 | 56 |
| Lisinopril | 83 | 39 |
| Alendronate Sodium | 79 | 34 |
| Fluticasone Propionate | 75 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-12
- Last updated
- 2021-12-08
Frequently asked questions
- What is Susan Gross's NPI number?
- Susan Gross's National Provider Identifier (NPI) is 1588714380, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Susan Gross's specialty?
- Susan Gross is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Susan Gross located?
- Susan Gross's practice location on file with NPPES is 3900 Lakeville Hwy, Petaluma, CA 94954-5698.
- What is Susan Gross's phone number?
- The practice phone number listed in the NPPES registry for Susan Gross is (707) 765-3900.
- Does Susan Gross accept Medicare?
- Susan Gross is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Susan Gross's NPI active?
- Yes — Susan Gross's NPI (1588714380) is active in the NPPES registry as of the last update on 2021-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.