Mary Herner, MD
NPI 1477884187 · Internal Medicine Physician · Alameda, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Herner, MD is a Internal Medicine Physician provider in Alameda, CA (NPI 1477884187).
Provider details
- NPI number
- 1477884187
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A107080 (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
16 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 · 87 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 291 | 124 |
| Amlodipine Besylate | 186 | 68 |
| Levothyroxine Sodium | 184 | 67 |
| Lisinopril | 150 | 60 |
| Losartan Potassium | 141 | 52 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 122 | 37 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-01-19
- Last updated
- 2021-12-22
Frequently asked questions
- What is Mary Herner's NPI number?
- Mary Herner's National Provider Identifier (NPI) is 1477884187, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Herner's specialty?
- Mary Herner is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Herner located?
- Mary Herner's practice location on file with NPPES is 2417 Central Ave, Alameda, CA 94501-4515.
- What is Mary Herner's phone number?
- The practice phone number listed in the NPPES registry for Mary Herner is (510) 752-1000.
- Does Mary Herner accept Medicare?
- Mary Herner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Herner's NPI active?
- Yes — Mary Herner's NPI (1477884187) is active in the NPPES registry as of the last update on 2021-12-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.