Mary Yoo, MD
NPI 1609935212 · Internal Medicine Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Yoo, MD is a Internal Medicine Physician provider in San Diego, CA (NPI 1609935212).
Provider details
- NPI number
- 1609935212
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A84430 (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 · 77 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 369 | 133 |
| Lisinopril | 185 | 74 |
| Rosuvastatin Calcium | 172 | 67 |
| Amlodipine Besylate | 160 | 61 |
| Levothyroxine Sodium | 160 | 58 |
| Losartan Potassium | 133 | 52 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-08
- Last updated
- 2021-12-21
- Certified
- 2021-12-21
Frequently asked questions
- What is Mary Yoo's NPI number?
- Mary Yoo's National Provider Identifier (NPI) is 1609935212, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Yoo's specialty?
- Mary Yoo is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Yoo located?
- Mary Yoo's practice location on file with NPPES is 4647 Zion Ave, San Diego, CA 92120-2507.
- What is Mary Yoo's phone number?
- The practice phone number listed in the NPPES registry for Mary Yoo is (619) 528-5000.
- Does Mary Yoo accept Medicare?
- Mary Yoo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Yoo's NPI active?
- Yes — Mary Yoo's NPI (1609935212) is active in the NPPES registry as of the last update on 2021-12-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.