Mitchell Watanabe, MD
NPI 1528049996 · Family Medicine Physician · Santa Ana, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mitchell Watanabe, MD is a Family Medicine Physician provider in Santa Ana, CA (NPI 1528049996).
Provider details
- NPI number
- 1528049996
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A44130 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
284 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 114 | $139 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 93 | $6 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 26 | $17 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 24 | $99 |
| Administration of Influenza Virus VaccineG0008 | 15 | $35 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 118 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 347 | 114 |
| Benazepril Hcl | 266 | 92 |
| Losartan Potassium | 263 | 83 |
| Rosuvastatin Calcium | 251 | 90 |
| Levothyroxine Sodium | 205 | 66 |
| Montelukast Sodium | 194 | 59 |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$29 across 2 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
- 2005-11-10
- Last updated
- 2011-06-21
Frequently asked questions
- What is Mitchell Watanabe's NPI number?
- Mitchell Watanabe's National Provider Identifier (NPI) is 1528049996, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mitchell Watanabe's specialty?
- Mitchell Watanabe is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mitchell Watanabe located?
- Mitchell Watanabe's practice location on file with NPPES is 1212 W 17th St, Santa Ana, CA 92706-3418.
- What is Mitchell Watanabe's phone number?
- The practice phone number listed in the NPPES registry for Mitchell Watanabe is (714) 641-7100.
- Does Mitchell Watanabe accept Medicare?
- Mitchell Watanabe is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mitchell Watanabe's NPI active?
- Yes — Mitchell Watanabe's NPI (1528049996) is active in the NPPES registry as of the last update on 2011-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.