Sheila Marie Adan, D.O.
NPI 1912272733 · Family Medicine Physician · Ontario, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sheila Marie Adan, D.O. is a Family Medicine Physician provider in Ontario, CA (NPI 1912272733).
Provider details
- NPI number
- 1912272733
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 20A12266 (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
14 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 · 106 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 366 | 138 |
| Lisinopril | 206 | 84 |
| Amlodipine Besylate | 195 | 78 |
| Losartan Potassium | 184 | 72 |
| Levothyroxine Sodium | 173 | 63 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 143 | 38 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-03-12
- Last updated
- 2021-12-23
- Certified
- 2021-12-23
Frequently asked questions
- What is Sheila Marie Adan's NPI number?
- Sheila Marie Adan's National Provider Identifier (NPI) is 1912272733, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sheila Marie Adan's specialty?
- Sheila Marie Adan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sheila Marie Adan located?
- Sheila Marie Adan's practice location on file with NPPES is 2295 S Vineyard Ave, Ontario, CA 91761-7925.
- What is Sheila Marie Adan's phone number?
- The practice phone number listed in the NPPES registry for Sheila Marie Adan is (909) 724-5000.
- Does Sheila Marie Adan accept Medicare?
- Sheila Marie Adan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sheila Marie Adan's NPI active?
- Yes — Sheila Marie Adan's NPI (1912272733) is active in the NPPES registry as of the last update on 2021-12-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.