Mary Jane San Antonio, MD
NPI 1700066354 · Family Medicine Physician · Fontana, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Jane San Antonio, MD is a Family Medicine Physician provider in Fontana, CA (NPI 1700066354).
Provider details
- NPI number
- 1700066354
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A96973 (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
18 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 · 93 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 494 | 186 |
| Amlodipine Besylate | 335 | 129 |
| Losartan Potassium | 253 | 102 |
| Lisinopril | 217 | 81 |
| Levothyroxine Sodium | 203 | 65 |
| Rosuvastatin Calcium | 191 | 74 |
| Atenolol |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-11-13
- Last updated
- 2022-02-10
Frequently asked questions
- What is Mary Jane San Antonio's NPI number?
- Mary Jane San Antonio's National Provider Identifier (NPI) is 1700066354, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Jane San Antonio's specialty?
- Mary Jane San Antonio is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Jane San Antonio located?
- Mary Jane San Antonio's practice location on file with NPPES is 9961 Sierra Ave, Fontana, CA 92335-6720.
- What is Mary Jane San Antonio's phone number?
- The practice phone number listed in the NPPES registry for Mary Jane San Antonio is (909) 427-3910.
- Does Mary Jane San Antonio accept Medicare?
- Mary Jane San Antonio is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Jane San Antonio's NPI active?
- Yes — Mary Jane San Antonio's NPI (1700066354) is active in the NPPES registry as of the last update on 2022-02-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.