Michael Choi, MD
NPI 1215015797 · Urology Physician · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Choi, MD is a Urology Physician provider in Walnut Creek, CA (NPI 1215015797).
Provider details
- NPI number
- 1215015797
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A87594 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Finasteride | 81 | 36 |
| Tamsulosin Hcl | 80 | 35 |
| Trospium Chloride | 30 | 16 |
| Ibuprofen | 29 | 25 |
| Tadalafil | 24 | — |
| Oxycodone Hcl | 23 | 22 |
| Cefadroxil | 21 | 19 |
| Ciprofloxacin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$833 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2021-12-13
Frequently asked questions
- What is Michael Choi's NPI number?
- Michael Choi's National Provider Identifier (NPI) is 1215015797, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Choi's specialty?
- Michael Choi is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Choi located?
- Michael Choi's practice location on file with NPPES is 1425 S Main St, Walnut Creek, CA 94596-5318.
- What is Michael Choi's phone number?
- The practice phone number listed in the NPPES registry for Michael Choi is (925) 295-4000.
- Does Michael Choi accept Medicare?
- Michael Choi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Choi's NPI active?
- Yes — Michael Choi's NPI (1215015797) is active in the NPPES registry as of the last update on 2021-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.